IQ24033QTC30NRS [SYNQOR]
Quarter-brick DC-DC Converter; 四分之一砖DC- DC转换器
| 型号： | IQ24033QTC30NRS |
| 厂家： | 
SYNQOR WORLDWIDE HEADQUARTERS |
| 描述： | Quarter-brick DC-DC Converter |
| 文件： | 总28页 (文件大小：1656K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Technical
Specification
IQ24-QTC Family
18-36 V
Cont. Input
50 V
Trans. Input
1.8-48 V
Outputs
120 W
Max Power
2250 V dc
Isolation
Quarter-brick
DC-DC Converter
®
The InQor quarter-brick converter series is composed of
next-generation, board-mountable, isolated, fixed switching
frequency dc-dc converters that use synchronous rectification
to achieve extremely high power conversion efficiency. Each
module is supplied completely encased to provide protection
from the harsh environments seen in many industrial and
transportation applications.
Operational Features
•ꢀ Highꢀefficiencies,ꢀupꢀtoꢀ93%ꢀatꢀfullꢀratedꢀloadꢀcurrent
•ꢀ Deliversꢀfullꢀpowerꢀwithꢀminimalꢀderatingꢀ-ꢀnoꢀheatsinkꢀrequired
•ꢀ Operatingꢀinputꢀvoltageꢀrange:ꢀ
18-36ꢀV,ꢀ50ꢀVꢀtransientꢀforꢀ100ꢀms
•ꢀ FixedꢀfrequencyꢀswitchingꢀprovidesꢀpredictableꢀEMI
•ꢀ Noꢀminimumꢀloadꢀrequirement
Protection Features
•ꢀ Inputꢀunder-voltageꢀlockout
Mechanical Features
•ꢀ Outputꢀcurrentꢀlimitꢀandꢀshortꢀcircuitꢀprotection
•ꢀ Activeꢀbackꢀbiasꢀlimit
•ꢀ Outputꢀover-voltageꢀprotection
•ꢀ Thermalꢀshutdown
•ꢀ Industryꢀstandardꢀquarter-brickꢀpin-outꢀconfigurationꢀ
•ꢀ Size:ꢀ1.54"ꢀxꢀ2.39"ꢀxꢀ0.50"
(39.0ꢀxꢀ60.6ꢀxꢀ12.7mm)
•ꢀ Totalꢀweight:ꢀ3ꢀozꢀ(85ꢀg)
COꢀTꢁꢀTS
Control Features
ꢀ
PageꢀNo.
•ꢀ On/Offꢀcontrolꢀreferencedꢀtoꢀinputꢀside
•ꢀ Remoteꢀsenseꢀforꢀtheꢀoutputꢀvoltage
•ꢀ Outputꢀvoltageꢀtrimꢀrangeꢀofꢀ-20%,ꢀ+10%
MechanicalꢀDrawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IQ24ꢀFamilyꢀElectricalꢀCharacteristics . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
IQ24ꢀFamilyꢀFigures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IQ24018QTC40ꢀ(1.8V,ꢀ40A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . . . 6 - 7
IQ24033QTC30ꢀ(3.3V,ꢀ30A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . . . 8 - 9
IQ24050QTC24ꢀ(5.0V,ꢀ24A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . 10 - 11
IQ24070QTC17ꢀ(7.0V,ꢀ17A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . 12 - 13
IQ24120QTC10ꢀ(12V,ꢀ10A)ꢀCharacteristicsꢀandꢀFigures. . . . . . . . . 14 - 15
IQ24150QTC08ꢀ(15V,ꢀ8.0A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . 16 - 17
IQ24240QTC05ꢀ(24V,ꢀ5.0A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . 18 - 19
IQ24300QTC04ꢀ(30V,ꢀ4.0A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . 20 - 21
IQ24480QTC2Fꢀ(48V,ꢀ2.5A)ꢀCharacteristicsꢀandꢀFigures . . . . . . . . 22 - 23
ApplicationꢀNotes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 27
OrderingꢀInformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Safety Features
•ꢀ 2250ꢀV,ꢀ30ꢀMW input-to-output isolation
•ꢀ UL/cULꢀ60950-1ꢀrecognizedꢀ(USꢀ&ꢀCanada),ꢀbasicꢀinsulationꢀ
rating
•ꢀ TUVꢀcertifiedꢀtoꢀEN60950-1ꢀ
•ꢀ Meetsꢀ72/23/EECꢀandꢀ93/68/EECꢀdirectivesꢀwhichꢀfacilitatesꢀ
CEꢀMarkingꢀinꢀuser’sꢀendꢀproduct
•ꢀ BoardꢀandꢀplasticꢀcomponentsꢀmeetꢀUL94V-0ꢀstandard
•ꢀ RoHSꢀcompliantꢀ(seeꢀPageꢀ28
)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 1
Technical
Specification
IQ24-QTC Family
MECHANICALꢀDIAGRAM
Top View
Side View
1.54 (39)
0.18
(4.57)
0.600 (15.24)
0.500 ± 0.025
(12.7 ± 0.63)
Overall Height
0.450 (11.43)
0.300 (7.62)
0.25
(6.4)
0.150 (3.81)
0.26
(6.7)
8
7
6
5
4
2.39
(60.6)
2.00
(50.8)
1.86
(47.21)
M3 Threaded
Inserts
4 Places
See Note 9
1
2
3
0.18
(4.6)
0.300 (7.62)
0.010 ± 0.010
(0.25 ± 0.25)
0.600 (15.24)
1.030 (26.16)
0.47
(11.9)
Bottom Side Clearance
PINꢀDESIGNATIONS
NOTES
ꢀ
ꢀ
ꢀ
ꢀ
1)ꢀPinsꢀ1-3,ꢀ5-7ꢀareꢀ0.040"ꢀ(1.02mm)ꢀdiameterꢀwithꢀ0.080"ꢀ(2.03ꢀ
mm)ꢀdiameterꢀstandoffꢀshoulders.
Pinꢀ
No.
Name
Vinꢀ(+)
Function
2)ꢀPinsꢀ4ꢀandꢀ8ꢀareꢀ0.062"ꢀ(1.57ꢀmm)ꢀdiameterꢀwithꢀ0.100"ꢀ(2.54ꢀ
mm)ꢀdiameterꢀstandoffꢀshoulders.
3)ꢀRecommendedꢀpinꢀlengthꢀisꢀ0.03"ꢀ(0.76mm)ꢀgreaterꢀthanꢀtheꢀPCBꢀ
1
Positiveꢀinputꢀvoltage
thickness.
TTLꢀinputꢀtoꢀturnꢀconverterꢀ
on and off, referenced to
Vinꢀ(-)ꢀwithꢀinternalꢀpullꢀup
4)ꢀAllꢀPins:ꢀMaterialꢀ-ꢀCopperꢀAlloy;ꢀꢀFinishꢀ-ꢀMatteꢀTinꢀoverꢀNickelꢀ
plate
2
ON/OFF
ꢀ
ꢀ
ꢀ
5)ꢀUndimensionedꢀcomponentsꢀshownꢀareꢀforꢀvisualꢀreferenceꢀonly.
6)ꢀWeight:ꢀ 3.02ꢀoz.ꢀ(85.7ꢀg)ꢀtypical
7)ꢀAllꢀdimensionsꢀinꢀinchesꢀ(mm)
3
4
5
6
7
8
Vinꢀ(-)
Negativeꢀinputꢀvoltage
Negativeꢀoutputꢀvoltage
Voutꢀ(-)
Tolerances:ꢀ x.xxꢀꢀ+/-0.02ꢀin.ꢀ(x.xꢀꢀ+/-0.5mm)
SENSEꢀ(-) Negativeꢀremoteꢀsense1
TRIM
Outputꢀvoltageꢀtrim2
SENSEꢀ(+) Positiveꢀremoteꢀsense3
Voutꢀ(+) Positiveꢀoutputꢀvoltage
ꢀ
ꢀ
ꢀ
ꢀ ꢀ
ꢀ
x.xxxꢀꢀ+/-0.010ꢀin.ꢀ(x.xxꢀꢀ+/-0.25mm)
8)ꢀWorkmanship:ꢀMeetsꢀorꢀexceedsꢀcurrentꢀIPC-A-610ꢀClassꢀII
9)ꢀM3ꢀscrewsꢀusedꢀtoꢀboltꢀunit’sꢀbaseplateꢀtoꢀotherꢀsurfacesꢀ(suchꢀasꢀ
aꢀheatsink)ꢀmustꢀnotꢀexceedꢀ0.100"ꢀ(2.54ꢀmm)ꢀdepthꢀbelowꢀtheꢀ
surface of the baseplate.
ꢀ 10)ꢀAppliedꢀtorqueꢀperꢀscrewꢀshouldꢀnotꢀexceedꢀ6in-lb.ꢀ(0.7ꢀNm).
ꢀ 11)ꢀBaseplateꢀflatnessꢀtoleranceꢀisꢀ0.004"ꢀ(.10mm)ꢀTIRꢀforꢀsurface.
Notes:
1.ꢀ SENSE(–)ꢀshouldꢀbeꢀconnectedꢀtoꢀVout(–)ꢀeitherꢀremotelyꢀorꢀatꢀtheꢀ
converter.
2.ꢀ LeaveꢀTRIMꢀpinꢀopenꢀforꢀnominalꢀoutputꢀvoltage.
3.ꢀ SENSE(+)ꢀshouldꢀbeꢀconnectedꢀtoꢀVout(+)ꢀeitherꢀremotelyꢀorꢀatꢀtheꢀ
converter.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 2
Technical
Specification
IQ24-QTC Family
IQ24 FꢂMIꢃꢄ ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (all output voltages)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDC unlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀambientꢀ
temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
ꢂBSOꢃUTꢁ MꢂXIMUM RꢂTIꢀGS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
InputꢀVoltage
ꢀ
ꢀ
ꢀ
Non-Operatingꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
60ꢀ
36ꢀ
Vꢀ
Vꢀ
Continuous
Operatingꢀ
ꢀ
Continuous
OperatingꢀTransientꢀProtectionꢀ
ꢀ
50ꢀ
Vꢀ
100ꢀmsꢀtransient,ꢀsquareꢀwave
Basicꢀinsulation,ꢀPollutionꢀDegreeꢀ2
IsolationꢀVoltageꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
InputꢀtoꢀOutputꢀ
2250ꢀ
2250ꢀ
2250ꢀ
100ꢀ
125ꢀ
18ꢀ
Vdc
Vdc
Vdc
°Cꢀ
°C
V
InputꢀtoꢀBase-Plateꢀ
OutputꢀtoꢀBase-Plateꢀ
ꢀ
ꢀ
OperatingꢀTemperatureꢀ
StorageꢀTemperatureꢀ
-40ꢀ
-55ꢀ
-2ꢀ
Baseplateꢀtemperature
VoltageꢀatꢀON/OFFꢀinputꢀpinꢀ
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
OperatingꢀInputꢀVoltageꢀRangeꢀ
InputꢀUnder-VoltageꢀLockout
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
18ꢀ
24ꢀ
36ꢀ
Vꢀ
50ꢀVꢀtransientꢀforꢀ100ꢀms
ꢀ
ꢀ
ꢀ
Turn-OnꢀVoltageꢀThresholdꢀ
Turn-OffꢀVoltageꢀThresholdꢀ
LockoutꢀVoltageꢀHysteresisꢀ
16.6ꢀ
17.0ꢀ
15.4ꢀ
1.6ꢀ
17.4ꢀ
V
V
15.0ꢀ
15.8ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
RecommendedꢀExternalꢀInputꢀCapacitanceꢀ
220ꢀ
µFꢀ
TypicalꢀESRꢀ0.1-0.2ꢀW
DꢄꢀꢂMIC CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
Turn-OnꢀTransient
ꢀ
ꢀ
ꢀ
Turn-OnꢀTimeꢀ
ꢀ
200ꢀ
ꢀ
9ꢀ
230ꢀ
0ꢀ
ꢀ
250ꢀ
ꢀ
msꢀ
msꢀ
%ꢀ
Fullꢀload,ꢀV =90%ꢀnom.
out
Start-UpꢀInhibitꢀTimeꢀ
SeeꢀFigureꢀF
OutputꢀVoltageꢀOvershootꢀ
MaximumꢀOutputꢀCapacitance
ISOꢃꢂTIOꢀ CꢅꢂRꢂCTꢁRISTICS
IsolationꢀVoltageꢀ(dielectricꢀstrength)ꢀ
IsolationꢀResistanceꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
SeeꢀAbsoluteꢀMaximumꢀRatings
30ꢀ
MW
pF
IsolationꢀCapacitanceꢀ(inputꢀtoꢀoutput)ꢀ1ꢀ
1000ꢀ
TꢁMPꢁRꢂTURꢁ ꢃIMITS FOR POWꢁR DꢁRꢂTIꢀG CURVꢁS
ꢀ
SemiconductorꢀJunctionꢀTemperatureꢀ
BoardꢀTemperatureꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
125ꢀ
125ꢀ
125ꢀ
100ꢀ
°Cꢀ
°Cꢀ
°Cꢀ
°C
Packageꢀratedꢀtoꢀ150ꢀ°C
ULꢀratedꢀmaxꢀoperatingꢀtempꢀ130ꢀ°C
SeeꢀCommonꢀFigureꢀ3 for derating curve
ꢀ
ꢀ
ꢀ
TransformerꢀTemperatureꢀ
MaximumꢀBaseplateꢀTemperature,ꢀTBꢀ
FꢁꢂTURꢁ CꢅꢂRꢂCTꢁRISTICS
SwitchingꢀFrequencyꢀ
ON/OFFꢀControl
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
230ꢀ
250ꢀ
270ꢀ
kHzꢀ
RegulationꢀandꢀIsolationꢀstages
ꢀ
ꢀ
Off-StateꢀVoltageꢀ
On-StateꢀVoltageꢀ
2.4ꢀ
-2ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
18ꢀ
0.8ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
V
ON/OFFꢀControlꢀ
ꢀ
CommonꢀFiguresꢀAꢀ&ꢀB
ꢀ
ꢀ
Pull-UpꢀVoltageꢀ
5ꢀ
V
Pull-UpꢀResistanceꢀ
50ꢀ
125ꢀ
10ꢀ
kW
°Cꢀ
°C
Over-TemperatureꢀShutdownꢀ
AverageꢀPCBꢀTemperature
Over-TemperatureꢀShutdownꢀRestartꢀHysteresisꢀ
RꢁꢃIꢂBIꢃITꢄ CꢅꢂRꢂCTꢁRISTICS
CalculatedꢀMTBFꢀ(Telcordia)ꢀTR-NWT-000332ꢀ
CalculatedꢀMTBFꢀ(MIL-217)ꢀMIL-HDBK-217Fꢀ
FieldꢀDemonstratedꢀMTBFꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ2.5ꢀ
ꢀ2.0ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
106ꢀHrsꢀ 80%ꢀload,ꢀ300LFM,ꢀ40ꢀ°CꢀT
106ꢀHrsꢀ 80%ꢀload,ꢀ300LFM,ꢀ40ꢀ°CꢀT
106ꢀHrsꢀ Seeꢀourꢀwebsite for details
A
A
ꢀote 1:ꢀHigherꢀvaluesꢀofꢀisolationꢀcapacitanceꢀcanꢀbeꢀaddedꢀexternalꢀtoꢀtheꢀmodule.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 3
Technical
Specification
IQ24-QTC Family
IQ24 FꢂMIꢃꢄ STꢂꢀDꢂRDS ꢂꢀD QUꢂꢃIFICꢂTIOꢀS (all output voltages)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDC unlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀambientꢀ
temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
STANDARDSꢀCOMPLIANCE
ꢀParameter
ꢀNotesꢀ&ꢀConditions
ꢀSTANDARDSꢀCOMPLIANCE
ꢀUL/cULꢀ60950-1ꢀꢀ
ꢀEN60950-1ꢀꢀ
ꢀFileꢀ#ꢀE194341,ꢀBasicꢀinsulation
ꢀCertifiedꢀbyꢀTUV
ꢀNeedleꢀFlameꢀTestꢀ(IECꢀ695-2-2)
ꢀIECꢀ61000-4-2
ꢀTestꢀonꢀentireꢀassembly;ꢀboardꢀ&ꢀplasticꢀcomponentsꢀUL94V-0ꢀcompliant
ꢀESDꢀtest,ꢀ8ꢀkVꢀ-ꢀNP,ꢀ15ꢀkVꢀairꢀ-ꢀNPꢀ(NormalꢀPerformance)
Note:ꢀAnꢀexternalꢀinputꢀfuseꢀmustꢀalwaysꢀbeꢀusedꢀtoꢀmeetꢀtheseꢀsafetyꢀrequirements.ꢀꢀContactꢀSynQorꢀforꢀofficialꢀsafetyꢀcertificatesꢀonꢀnew
releasesꢀorꢀdownloadꢀfromꢀtheꢀSynQorꢀwebsite.
QUALIFICATIONꢀTESTING
ꢀParameter
#ꢀUnits ꢀTestꢀConditions
ꢀQUALIFICATIONꢀTESTING
ꢀLifeꢀTest
32
ꢀ95%ꢀratedꢀVinꢀandꢀload,ꢀunitsꢀatꢀderatingꢀpoint,ꢀ1000ꢀhours
ꢀVibration
5
5
10
5
5
5
ꢀ10-55ꢀHzꢀsweep,ꢀ0.060"ꢀtotalꢀexcursion,ꢀ1ꢀmin./sweep,ꢀ120ꢀsweepsꢀforꢀ3ꢀaxis
ꢀ100gꢀminimum,ꢀ2ꢀdropsꢀinꢀxꢀandꢀyꢀaxis,ꢀ1ꢀdropꢀinꢀzꢀaxis
ꢀ-40ꢀ°Cꢀtoꢀ100ꢀ°C,ꢀunitꢀtemp.ꢀrampꢀ15ꢀ°C/min.,ꢀ500ꢀcycles
ꢀToperatingꢀ=ꢀminꢀtoꢀmax,ꢀVinꢀ=ꢀminꢀtoꢀmax,ꢀfullꢀload,ꢀ100ꢀcycles
ꢀTmin-10ꢀ°CꢀtoꢀTmax+10ꢀ°C,ꢀ5ꢀ°Cꢀsteps,ꢀVinꢀ=ꢀminꢀtoꢀmax,ꢀ0-105%ꢀload
ꢀ85ꢀ°C,ꢀ85%ꢀRH,ꢀ1000ꢀhours,ꢀcontinuousꢀVinꢀappliedꢀexceptꢀ5ꢀmin/day
ꢀMIL-STD-883,ꢀmethodꢀ2003
ꢀMechanicalꢀShock
ꢀTemperatureꢀCycling
ꢀPower/ThermalꢀCycling
ꢀDesignꢀMarginality
ꢀHumidity
ꢀSolderability
15ꢀpins
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 4
Technical
Specification
IQ24-QTC Family
IQ24 FꢂMIꢃꢄ FIGURꢁS (all output voltages)
120
Nominal Vout
Typical Current Limit Inception Point
100
80
60
40
20
0
Typical Output Voltage at Shutdown
Vin, Min.
Vin, Typ.
Vin, Max.
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Load Current (%)
Common Figure 2: Output voltage vs. load current showing typical
current limit curves and converter shutdown points.
Common Figure 1: Typical startup waveform. Input voltage pre-applied,
ON/OFF Pin on Ch 2.
100,000.0
10,000.0
1,000.0
100.0
1,000,000.0
100,000.0
10,000.0
1,000.0
10.0
100.0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
7 V 12 V
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
1.8 V
3.3 V
5 V
15 V
24 V
30 V 48 V
Common Figure 4: Trim graph for trim-up 15 to 48 V outputs.
Common Figure 3: Trim graph for trim-up 1.8 to 12 V outputs.
10,000.0
% Decrease in Vout (All voltages)
1,000.0
100.0
10.0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
% Decrease in Vout (All voltages)
Common Figure 5: Trim graph for trim down.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 5
Input18-36 V
Output1.8 V
Current40 A
Part ꢀo.IQ24018QTC40
Technical Specification
IQ24018QTC40 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (1.8 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
100ꢀ
1.5ꢀ
6.3ꢀ
130ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
0.06ꢀ
200ꢀ
ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
1.782ꢀ
1.800ꢀ
1.818ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
70ꢀ
15ꢀ
ꢀ
+0.3ꢀ
%
%
OverꢀLoadꢀ
+0.3ꢀ
OverꢀTemperatureꢀ
-27ꢀ
27ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
1.755ꢀ
1.845ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
140ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
30ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
40ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
44ꢀ
48ꢀ
0.6ꢀ
1.2ꢀ
16ꢀ
ꢀ
52ꢀ
Aꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
10,000ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
60ꢀ
100ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrentꢀapp. note on our web
ꢀ
-20ꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
700ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
84ꢀ
86ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramicꢀandꢀ15ꢀµFꢀlow-ESRꢀtantalumꢀcapacitors.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 6
Input18-36 V
Output1.8 V
Current40 A
Part ꢀo.IQ24018QTC40
Technical Specification
100
95
90
85
80
75
70
65
60
16
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
5
10
15
20
25
30
35
40
0
5
10
15
20
25
30
35
40
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
45
40
35
30
25
20
45
40
35
30
25
20
15
15
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
10
10
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
5
5
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.2 A/µs). Load cap: 1
µF ceramic and 15
µF tantalum
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
capacitors. Ch 1: Vout (200 mV/div), Ch 2: Iout (10 A/div).
(200 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 7
Input
Output
Current
Part ꢀo.
18-36 V
3.3 V
30 A
IQ24033QTC30
Technical Specification
IQ24033QTC30 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (3.3 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
100ꢀ
1.5ꢀ
0.1ꢀ
260ꢀ
ꢀ
8.1ꢀ
130ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
3.267ꢀ
3.300ꢀ
3.333ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
60ꢀ
10ꢀ
ꢀ
+0.3ꢀ
%
%
OverꢀLoadꢀ
+0.3ꢀ
OverꢀTemperatureꢀ
-50ꢀ
50ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
3.218ꢀ
3.383ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
120ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
20ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
30ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
33ꢀ
36ꢀ
1.5ꢀ
0.7ꢀ
16ꢀ
ꢀ
39ꢀ
Aꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
10,000ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
100ꢀ
100ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
400ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
90ꢀ
91ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramicꢀandꢀ15ꢀµFꢀlow-ESRꢀtantalumꢀcapacitors.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 8
Input
Output
Current
Part ꢀo.
18-36 V
3.3 V
30 A
IQ24033QTC30
Technical Specification
100
95
90
85
80
75
70
65
60
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
35
30
25
20
15
35
30
25
20
15
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
10
5
10
5
0
0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.2 A/µs). Load cap: 1
µF ceramic and 15
µF tantalum
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
capacitors. Ch 1: Vout (200 mV/div), Ch 2: Iout (10 A/div).
(200 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 9
Input18-36 V
Output5.0V
Current24 A
Part ꢀo.IQ24050QTC24
Technical Specification
IQ24050QTC24 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (5.0 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
100ꢀ
1.5ꢀ
9.8ꢀ
130ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
0.16ꢀ
330ꢀ
ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
4.95ꢀ
5.00ꢀ
5.05ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
60ꢀ
10ꢀ
ꢀ
+0.3ꢀ
+0.3ꢀ
75ꢀ
5.125ꢀ
ꢀ
%
%
OverꢀLoadꢀ
OverꢀTemperatureꢀ
-75ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
4.875ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
120ꢀ
20ꢀ
24ꢀ
31.2ꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
26.4ꢀ
28.8ꢀ
2.4ꢀ
0.55ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
8,000ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
170ꢀ
100ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
250ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
89ꢀ
92ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramicꢀandꢀ15ꢀµFꢀlow-ESRꢀtantalumꢀcapacitors.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 10
Input18-36 V
Output5.0V
Current24 A
Part ꢀo.IQ24050QTC24
Technical Specification
100
95
90
85
80
75
70
65
60
18
16
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
4
8
12
16
20
24
0
4
8
12
16
20
24
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
30
25
20
15
30
25
20
15
10
10
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
5
0
5
0
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 1
µF ceramic and 15
µF tantalum
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
capacitors. Ch 1: Vout (200 mV/div), Ch 2: Iout (5 A/div).
(200 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 11
Input18-36 V
Output7.0 V
Current17 A
Part ꢀo.IQ24070QTC17
Technical Specification
IQ24070QTC17 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (7.0 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
110ꢀ
1.5ꢀ
0.17ꢀ
275ꢀ
ꢀ
9.5ꢀ
140ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
ꢀ
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
6.930ꢀ
7.000ꢀ
7.070ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
30ꢀ
5ꢀ
ꢀ
+0.3ꢀ
+0.3ꢀ
105ꢀ
7.175ꢀ
ꢀ
%
%
OverꢀLoadꢀ
OverꢀTemperatureꢀ
-105ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
6.825ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
50ꢀ
10ꢀ
17.0ꢀ
22.1ꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
18.7ꢀ
20.4ꢀ
3.2ꢀ
0.45ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
4,000ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
170ꢀ
100ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
200ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
92ꢀ
93ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramicꢀandꢀ15ꢀµFꢀlow-ESRꢀtantalumꢀcapacitors.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 12
Input18-36 V
Output7.0 V
Current17 A
Part ꢀo.IQ24070QTC17
Technical Specification
100
95
90
85
80
75
70
65
60
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
18
16
14
12
10
8
18
16
14
12
10
8
6
6
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
4
4
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
2
2
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 1
µF ceramic and 15
µF tantalum
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
capacitors. Ch 1: Vout (500 mV/div), Ch 2: Iout (5 A/div).
(500 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 13
Input
Output
Current
Part ꢀo.
18-36 V
12 V
10 A
IQ24120QTC10
Technical Specification
IQ24120QTC10 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (12 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
130ꢀ
1.5ꢀ
0.2ꢀ
230ꢀ
ꢀ
8.6ꢀ
160ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀ12ꢀVout;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
11.88ꢀ
12.00ꢀ
12.12ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
50ꢀ
10ꢀ
ꢀ
+0.3ꢀ
+0.3ꢀ
180ꢀ
12.3ꢀ
ꢀ
%
%
OverꢀLoadꢀ
OverꢀTemperatureꢀ
-180ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
11.7ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
80ꢀ
20ꢀ
10ꢀ
13ꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
11ꢀ
12ꢀ
4.9ꢀ
0.35ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
1500ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
350ꢀ
100ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ2ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
133ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
93ꢀ
93ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramicꢀandꢀ15ꢀµFꢀlow-ESRꢀtantalumꢀcapacitors.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
ꢀote 2:ꢀLimitedꢀtrim-upꢀisꢀachievableꢀatꢀlowꢀinputꢀvoltageꢀandꢀhighꢀoutputꢀcurrent.ꢀContactꢀtheꢀfactoryꢀforꢀdetails.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 14
Input
Output
Current
Part ꢀo.
18-36 V
12 V
10 A
IQ24120QTC10
Technical Specification
100
95
90
85
80
75
70
65
60
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
12
10
8
12
10
8
6
6
4
4
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
2
2
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 1
µF ceramic and 15
µF tantalum
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
capacitors. Ch 1: Vout (500 mV/div), Ch 2: Iout (2.5 A/div).
(500 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 15
Input18-36 V
Output15 V
Current8.0 A
Part ꢀo.IQ24150QTC08
Technical Specification
IQ24150QTC08 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (15 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
120ꢀ
1.5ꢀ
9.6ꢀ
150ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
0.25ꢀ
260ꢀ
ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
14.85ꢀ
15.00ꢀ
15.15ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
60ꢀ
10ꢀ
ꢀ
+0.3ꢀ
%
%
OverꢀLoadꢀ
+0.3ꢀ
OverꢀTemperatureꢀ
-225ꢀ
225ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
14.625ꢀ
15.375ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
90ꢀ
20ꢀ
8.0ꢀ
10.4ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
8.8ꢀ
9.6ꢀ
6.4ꢀ
0.25ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
1000ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
520ꢀ
100ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
100ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
92ꢀ
93ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramicꢀandꢀ15ꢀµFꢀlow-ESRꢀtantalumꢀcapacitors.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 16
Input18-36 V
Output15 V
Current8.0 A
Part ꢀo.IQ24150QTC08
Technical Specification
100
95
90
85
80
75
70
65
60
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
9
8
7
6
5
4
9
8
7
6
5
4
3
3
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
2
2
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
1
1
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 1
µF ceramic and 15
µF tantalum
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
capacitors. Ch 1: Vout (1 V/div), Ch 2: Iout (2.5 A/div).
(500 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 17
Input18-36 V
Output24 V
Current5.0 A
Part ꢀo.IQ24240QTC05
Technical Specification
IQ24240QTC05 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (24 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
110ꢀ
1.5ꢀ
0.4ꢀ
290ꢀ
ꢀ
9.6ꢀ
140ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
23.76ꢀ
24.00ꢀ
24.24ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
60ꢀ
10ꢀ
ꢀ
+0.3ꢀ
+0.3ꢀ
360ꢀ
24.6ꢀ
ꢀ
%
%
OverꢀLoadꢀ
OverꢀTemperatureꢀ
-360ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
23.4ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
90ꢀ
20ꢀ
5.0ꢀ
6.5ꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
5.5ꢀ
6.0ꢀ
11.5ꢀ
0.12ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
400ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
1300ꢀ
50ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
57ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
92ꢀ
93ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramic.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 18
Input18-36 V
Output24 V
Current5.0 A
Part ꢀo.IQ24240QTC05
Technical Specification
100
95
90
85
80
75
70
65
60
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0
1
2
3
4
5
0
1
2
3
4
5
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
6
5
4
3
6
5
4
3
2
2
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
1
1
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0
0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-50%
Figure 6: Output voltage response to step-change in input voltage
of Iout(max); dI/dt = 0.08 A/µs). Load cap: 1
µF ceramic capacitor. Ch 1: Vout
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
(2 V/div), Ch 2: Iout (1 A/div).
(500 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 19
Input18-36 V
Output30 V
Current4.0 A
Part ꢀo.IQ24300QTC04
Technical Specification
IQ24300QTC04 ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (30 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
110ꢀ
1.5ꢀ
9.7ꢀ
140ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
0.45ꢀ
310ꢀ
ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
29.7ꢀ
30.0ꢀ
30.3ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
70ꢀ
15ꢀ
ꢀ
+0.3ꢀ
+0.3ꢀ
450ꢀ
30.75ꢀ
ꢀ
%
%
OverꢀLoadꢀ
OverꢀTemperatureꢀ
-450ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
29.25ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
110ꢀ
30ꢀ
4.0ꢀ
5.2ꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
4.4ꢀ
4.8ꢀ
14.8ꢀ
0.09ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
250ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
1800ꢀ
50ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
44ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
91ꢀ
92ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramic.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 20
Input18-36 V
Output30 V
Current4.0 A
Part ꢀo.IQ24300QTC04
Technical Specification
100
95
90
85
80
75
70
65
60
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
4.5
4.0
3.5
3.0
2.5
2.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.5
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
1.0
1.0
300 LFM (1.5 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
0.5
0.5
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0.0
0.0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-50%
Figure 6: Output voltage response to step-change in input voltage
of Iout(max); dI/dt = 0.05 A/µs). Load cap: 1
µF ceramic capacitor. Ch 1: Vout
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
(2 V/div), Ch 2: Iout (1 A/div).
(500 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 21
Input18-36 V
Output48 V
Current2.5A
Part ꢀo.IQ24480QTC2F
Technical Specification
IQ24480QTC2F ꢁꢃꢁCTRICꢂꢃ CꢅꢂRꢂCTꢁRISTICS (48 VOUT)
TAꢀ=ꢀ25ꢀ°C,ꢀairflowꢀrateꢀ=ꢀ300ꢀLFM,ꢀVINꢀ=ꢀ24ꢀVDCꢀunlessꢀotherwiseꢀnoted;ꢀfullꢀoperatingꢀtemperatureꢀrangeꢀisꢀ-40ꢀ°Cꢀtoꢀ+100ꢀ°Cꢀ
ambient temperature with appropriate power derating. Specificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Parameter
Min.
Typ.
Max. Units ꢀotes & Conditions
IꢀPUT CꢅꢂRꢂCTꢁRISTICS
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
MaximumꢀInputꢀCurrentꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
120ꢀ
1.5ꢀ
0.5ꢀ
330ꢀ
ꢀ
9.9ꢀ
150ꢀ
3.0ꢀ
ꢀ
Aꢀ
mA
mA
Vꢀ
mAꢀ
Aꢀ
18ꢀVIN;ꢀtrimꢀup;ꢀinꢀcurrentꢀlimit
No-LoadꢀInputꢀCurrentꢀ
DisabledꢀInputꢀCurrentꢀ
ResponseꢀtoꢀInputꢀTransientꢀ
InputꢀTerminalꢀRippleꢀCurrentꢀ
RecommendedꢀInputꢀFuseꢀ
InputꢀFilterꢀComponentꢀValuesꢀ(L\C)ꢀ
250ꢀV/msꢀinputꢀtransient;ꢀ100ꢀµFꢀoutputꢀcap.
RMS
ꢀ
20ꢀ
ꢀ
Fastꢀactingꢀexternalꢀfuseꢀrecommended
µH\µFꢀ Internalꢀvalues;ꢀseeꢀFigureꢀE
1.0\6.6ꢀ
OUTPUT CꢅꢂRꢂCTꢁRISTICS
OutputꢀVoltageꢀSetꢀPointꢀ
OutputꢀVoltageꢀRegulation
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
47.52ꢀ
48.0ꢀ
48.48ꢀ
V
ꢀ
ꢀ
ꢀ
OverꢀLineꢀ
ꢀ
ꢀ
+0.1ꢀ
+0.1ꢀ
ꢀ
ꢀ
ꢀ
70ꢀ
15ꢀ
ꢀ
+0.3ꢀ
+0.3ꢀ
720ꢀ
49.20ꢀ
ꢀ
%
%
OverꢀLoadꢀ
OverꢀTemperatureꢀ
-720ꢀ
mV
TotalꢀOutputꢀVoltageꢀRangeꢀ
46.80ꢀ
Vꢀ
ꢀ
Overꢀsample,ꢀline,ꢀload,ꢀtemperatureꢀ&ꢀlife
20ꢀMHzꢀbandwidth
FullꢀLoad
FullꢀLoad
Subjectꢀtoꢀthermalꢀderating
OutputꢀVoltageꢀ10%ꢀLow
OutputꢀVoltageꢀRippleꢀandꢀNoiseꢀ1ꢀ
ꢀ
ꢀ
ꢀ
Peak-to-Peakꢀ
RMSꢀ
ꢀ
110ꢀ
30ꢀ
2.5ꢀ
3.3ꢀ
ꢀ
mVꢀ
mVꢀ
Aꢀ
ꢀ
OperatingꢀOutputꢀCurrentꢀRangeꢀ
0ꢀ
OutputꢀDCꢀCurrent-LimitꢀInceptionꢀ
OutputꢀDCꢀCurrent-LimitꢀShutdownꢀVoltageꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀEnabledꢀ
Back-DriveꢀCurrentꢀLimitꢀwhileꢀDisabledꢀ
MaximumꢀOutputꢀCapacitanceꢀ
2.8ꢀ
3.0ꢀ
23.8ꢀ
0.05ꢀ
16ꢀ
ꢀ
Aꢀ
ꢀ
ꢀ
V
ꢀ
Aꢀ
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Negativeꢀcurrentꢀdrawnꢀfromꢀoutput
Voutꢀnominalꢀatꢀfullꢀloadꢀ(resistiveꢀload)
0ꢀ
50ꢀ
100ꢀ
ꢀ
mAꢀ
µFꢀ
ꢀ
ꢀ
OutputꢀVoltageꢀduringꢀLoadꢀCurrentꢀTransientꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ForꢀaꢀStepꢀChangeꢀinꢀOutputꢀCurrentꢀ(0.1ꢀA/µs)ꢀ
SettlingꢀTimeꢀ
ꢀ
2600ꢀ
50ꢀ
ꢀ
ꢀ
ꢀ
mVꢀ
µsꢀ
%ꢀ
%ꢀ
%ꢀ
ꢀ
50%ꢀtoꢀ75%ꢀtoꢀ50%ꢀIOUT max
Toꢀwithinꢀ1%ꢀVOUT nom
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4;ꢀCommonꢀFigureꢀ3
MeasuredꢀacrossꢀPinsꢀ8ꢀ&ꢀ4
Overꢀfullꢀtempꢀrange;ꢀ%ꢀofꢀnominalꢀVOUT
SeeꢀOutputꢀLoadꢀCurrent app. note on our web
ꢀ
-20ꢀ
ꢀ
OutputꢀVoltageꢀTrimꢀRangeꢀ
+10ꢀ
+10ꢀ
127ꢀ
ꢀ
OutputꢀVoltageꢀRemoteꢀSenseꢀRangeꢀ
OutputꢀOver-VoltageꢀProtectionꢀ
LoadꢀCurrentꢀScaleꢀFactorꢀ
ꢀ
117ꢀ
ꢀ
122ꢀ
27ꢀ
ꢁFFICIꢁꢀCꢄ
ꢀ
ꢀ
100%ꢀLoadꢀ
50%ꢀLoadꢀ
ꢀ
ꢀ
89ꢀ
91ꢀ
ꢀ
ꢀ
%ꢀ
%ꢀ
SeeꢀFigureꢀ1 for efficiency curve
SeeꢀFigureꢀ1 for efficiency curve
ꢀote 1:ꢀOutputꢀisꢀterminatedꢀwithꢀ1ꢀµFꢀceramic.
Forꢀapplicationsꢀrequiringꢀreducedꢀoutputꢀvoltageꢀrippleꢀandꢀnoise,ꢀconsultꢀSynQorꢀapplicationsꢀsupportꢀ(e-mail:ꢀsupport@synqor.com)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 22
Input18-36 V
Output48 V
Current2.5A
Part ꢀo.IQ24480QTC2F
Technical Specification
100
95
90
85
80
75
70
65
60
18
16
14
12
10
8
6
4
18 Vin
24 Vin
36 Vin
18 Vin
24 Vin
36 Vin
2
0
0.0
0.5
1.0
1.5
2.0
2.5
0.0
0.5
1.0
1.5
2.0
2.5
Load Current (A)
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
Figure 2: Power dissipation at nominal output voltage vs. load current
minimum, nominal, and maximum input voltage at 25
°C.
for minimum, nominal, and maximum input voltage at 25°C.
3.0
2.5
2.0
1.5
3.0
2.5
2.0
1.5
1.0
1.0
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
0.5
0.5
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
0.0
0.0
0
25
40
55
70
85
0
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
Figure 6: Output voltage response to step-change in input voltage
50% of Iout(max); dI/dt = 0.02 A/µs). Load cap: 1
µF ceramic capacitor. Ch 1:
(250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout
Vout (5 V/div), Ch 2: Iout (1 A/div).
(500 mV/div), Ch 2: Vin (10 V/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 23
Technical
Specification
IQ24-QTC Family
BASICꢀOPERATIONꢀANDꢀFEATURES
CONTROLꢀFEATURES
This converter series uses a two-stage power conversion
topology. The first stage is a buck-converter that keeps the
output voltage constant over variations in line, load, and
temperature. The second stage uses a transformer to provide
theꢀ functionsꢀ ofꢀ input/outputꢀ isolationꢀ andꢀ voltageꢀ step-upꢀ orꢀ
step-down to achieve the output voltage required.
RꢁMOTꢁ Oꢀ/OFF (Pin 2):ꢀTheꢀON/OFFꢀinput,ꢀPinꢀ2,ꢀpermitsꢀ
the user to control when the converter is on or off. This input
isꢀ referencedꢀ toꢀ theꢀ returnꢀ terminalꢀ ofꢀ theꢀ inputꢀ bus,ꢀ Vin(-).ꢀ
TheꢀON/OFFꢀsignalꢀisꢀactiveꢀlowꢀ(meaningꢀthatꢀaꢀlowꢀturnsꢀtheꢀ
converterꢀon).ꢀFigureꢀAꢀdetailsꢀfourꢀpossibleꢀcircuitsꢀforꢀdrivingꢀ
theꢀON/OFFꢀpin.ꢀFigureꢀBꢀisꢀaꢀdetailedꢀlookꢀofꢀtheꢀinternalꢀON/
OFFꢀcircuitry.
Bothꢀ theꢀ firstꢀ stageꢀ andꢀ theꢀ secondꢀ stageꢀ switchꢀ atꢀ aꢀ fixedꢀ
frequencyꢀforꢀpredictableꢀEMIꢀperformance.ꢀRectificationꢀofꢀtheꢀ
transformer’sꢀoutputꢀisꢀaccomplishedꢀwithꢀsynchronousꢀrectifiers.ꢀ
Theseꢀ devices,ꢀ whichꢀ areꢀ MOSFETsꢀ withꢀ aꢀ veryꢀ lowꢀ on-stateꢀ
resistance,ꢀdissipateꢀfarꢀlessꢀenergyꢀthanꢀSchottkyꢀdiodes.ꢀThisꢀisꢀ
the primary reason that the converter has such high efficiency,
even at very low output voltages and very high output currents.
RꢁMOTꢁ SꢁꢀSꢁ(+) (Pins 7 and 5):ꢀ Theꢀ SENSE(+)ꢀ inputsꢀ
correct for voltage drops along the conductors that connect the
converter’sꢀoutputꢀpinsꢀtoꢀtheꢀload.
Pinꢀ 7ꢀ shouldꢀ beꢀ connectedꢀ toꢀ Vout(+)ꢀ andꢀ Pinꢀ 5ꢀ shouldꢀ beꢀ
connectedꢀtoꢀVout(-)ꢀatꢀtheꢀpointꢀonꢀtheꢀboardꢀwhereꢀregulationꢀ
isꢀ desired.ꢀ Aꢀ remoteꢀ connectionꢀ atꢀ theꢀ loadꢀ canꢀ adjustꢀ forꢀ aꢀ
voltage drop only as large as that specified in this datasheet,
that is
These converters are offered totally encased to withstand harsh
environmentsꢀandꢀthermallyꢀdemandingꢀapplications.ꢀDissipationꢀ
throughout the converter is so low that it does not require a
heatsinkꢀ forꢀ operationꢀ inꢀ manyꢀ applications;ꢀ however,ꢀ addingꢀ
a heatsink provides improved thermal derating performance in
extreme situations.
[Vout(+)ꢀ-ꢀVout(-)]ꢀ–ꢀ[Vsense(+)ꢀ-ꢀVsense(-)] <
SenseꢀRangeꢀ%ꢀxꢀVout
Pinsꢀ 7ꢀ andꢀ 5ꢀ mustꢀ beꢀ connectedꢀ forꢀ properꢀ regulationꢀ ofꢀ
the output voltage. If these connections are not made, the
converter will deliver an output voltage that is slightly higher
than its specified value.
This series of converters uses the industry standard footprint
and pin-out configuration.
Note:ꢀ theꢀ outputꢀ over-voltageꢀ protectionꢀ circuitꢀ sensesꢀ theꢀ
voltageꢀ acrossꢀ theꢀ outputꢀ (pinsꢀ 8ꢀ andꢀ 4)ꢀ toꢀ determineꢀ whenꢀ
itꢀshouldꢀtrigger,ꢀnotꢀtheꢀvoltageꢀacrossꢀtheꢀconverter’sꢀsenseꢀ
leadsꢀ(pinsꢀ7ꢀandꢀ5).ꢀꢀTherefore,ꢀtheꢀresistiveꢀdropꢀonꢀtheꢀboardꢀ
shouldꢀbeꢀsmallꢀenoughꢀsoꢀthatꢀoutputꢀOVPꢀdoesꢀnotꢀtrigger,ꢀ
even during load transients.
ON/OFF
ON/OFF
5V
_
_
Vin( )
Vin( )
NegativeꢀLogic
(PermanentlyꢀEnabled)
RemoteꢀEnableꢀCircuit
50k
5V
ON/OFF
ON/OFF
50k
TTL
TTL/
CMOS
ON/OFF
100pF
_
Vin( )
_
_
Vin( )
Vin( )
OpenꢀCollectorꢀEnableꢀCircuit
DirectꢀLogicꢀDrive
Figure A: Various circuits for driving the ON/OFF pin.
Figure B: Internal ON/OFF pin circuitry
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 24
Technical
Specification
IQ24-QTC Family
OUTPUT VOꢃTꢂGꢁ TRIM (Pin 6):ꢀTheꢀTRIMꢀinputꢀpermitsꢀtheꢀ
userꢀtoꢀadjustꢀtheꢀoutputꢀvoltageꢀacrossꢀtheꢀsenseꢀleadsꢀupꢀorꢀ
down according to the trim range specifications.
PROTECTIONꢀFEATURES
Input Under-Voltage ꢃockout:ꢀ Theꢀ converterꢀ isꢀ designedꢀ
to turn off when the input voltage is too low, helping avoid an
input system instability problem, described in more detail in the
applicationꢀnoteꢀtitledꢀ“0”ꢀonꢀourꢀwebsite.ꢀTheꢀlockoutꢀcircuitryꢀ
isꢀ aꢀ comparatorꢀ withꢀ dcꢀ hysteresis.ꢀ Whenꢀ theꢀ inputꢀ voltageꢀ isꢀ
rising,ꢀ itꢀ mustꢀ exceedꢀ theꢀ typicalꢀ Turn-Onꢀ Voltageꢀ Thresholdꢀ
valueꢀ (listedꢀ onꢀ theꢀ specificationsꢀ page)ꢀ beforeꢀ theꢀ converterꢀ
willꢀturnꢀon.ꢀOnceꢀtheꢀconverterꢀisꢀon,ꢀtheꢀinputꢀvoltageꢀmustꢀfallꢀ
belowꢀtheꢀtypicalꢀTurn-OffꢀVoltageꢀThresholdꢀvalueꢀbeforeꢀtheꢀ
converter will turn off.
To decrease the output voltage, the user should connect a
resistorꢀbetweenꢀPinꢀ6ꢀandꢀPinꢀ5ꢀ(SENSE(-)ꢀinput).ꢀForꢀaꢀdesiredꢀ
decrease of the nominal output voltage, the value of the resistor
should be
511
R
=
-ꢀ10.22 (kW)
trim-down
(∆%)
where
Vnominalꢀ–ꢀVdesired
ꢀꢀꢀꢀꢀꢀVnominal
Output Current ꢃimit:ꢀ Theꢀ maximumꢀ currentꢀ limitꢀ remainsꢀ
constantꢀ asꢀ theꢀ outputꢀ voltageꢀ drops.ꢀ However,ꢀ onceꢀ theꢀ
impedance of the load across the output is small enough to make
theꢀoutputꢀvoltageꢀdropꢀbelowꢀtheꢀspecifiedꢀOutputꢀDCꢀCurrent-
LimitꢀShutdownꢀVoltage,ꢀtheꢀconverterꢀturnsꢀoff.
=
xꢀ100%
∆%
ꢀ
ꢀ
To increase the output voltage, the user should connect a
resistorꢀbetweenꢀPinꢀ6ꢀandꢀPinꢀ7ꢀ(SENSE(+)ꢀinput).ꢀForꢀaꢀdesiredꢀ
increase of the nominal output voltage, the value of the resistor
should be
Theꢀconverterꢀthenꢀentersꢀaꢀ“hiccupꢀmode”ꢀwhereꢀitꢀrepeatedlyꢀ
turnsꢀonꢀandꢀoffꢀatꢀaꢀ5ꢀHzꢀ(nominal)ꢀfrequencyꢀwithꢀaꢀ5%ꢀdutyꢀ
cycle until the short circuit condition is removed. This prevents
excessive heating of the converter or the load board.
5.11VOUTꢀ (100+∆%)
x
511
_
R
_
=
(kW)
trim-up
10.22
)
(
1.225∆%
∆%
Output Over-Voltage ꢃimit:ꢀIfꢀtheꢀvoltageꢀacrossꢀtheꢀoutputꢀ
pinsꢀexceedsꢀtheꢀOutputꢀOver-VoltageꢀProtectionꢀthreshold,ꢀtheꢀ
converter will immediately stop switching. This prevents damage
toꢀtheꢀloadꢀcircuitꢀdueꢀtoꢀ1)ꢀexcessiveꢀseriesꢀresistanceꢀinꢀoutputꢀ
currentꢀ pathꢀ fromꢀ converterꢀ outputꢀ pinsꢀ toꢀ senseꢀ point,ꢀ 2)ꢀ aꢀ
releaseꢀofꢀaꢀshort-circuitꢀcondition,ꢀorꢀ3)ꢀaꢀreleaseꢀofꢀaꢀcurrentꢀ
limitꢀ condition.ꢀ Loadꢀ capacitanceꢀ determinesꢀ exactlyꢀ howꢀ highꢀ
theꢀoutputꢀvoltageꢀwillꢀriseꢀinꢀresponseꢀtoꢀtheseꢀconditions.ꢀAfterꢀ
200ꢀmsꢀtheꢀconverterꢀwillꢀautomaticallyꢀrestart.
where
V
ꢀ=ꢀNominalꢀOutputꢀVoltage
out
Graphsꢀ onꢀ Pageꢀ 3ꢀ showꢀ theꢀ relationshipꢀ betweenꢀ theꢀ trimꢀ
resistorꢀvalueꢀandꢀRtrim-upꢀandꢀRtrim-down,ꢀshowingꢀtheꢀtotalꢀ
range the output voltage can be trimmed up or down.
Note:ꢀtheꢀTRIMꢀfeatureꢀdoesꢀnotꢀaffectꢀtheꢀvoltageꢀatꢀwhichꢀtheꢀ
output over-voltage protection circuit is triggered. Trimming the
output voltage too high may cause the over-voltage protection
circuit to engage, particularly during transients.
Over-Temperature Shutdown:ꢀ Aꢀ temperatureꢀ sensorꢀ onꢀ
the converter senses the average temperature of the module.
The thermal shutdown circuit is designed to turn the converter
off when the temperature at the sensed location reaches the
Over-Temperatureꢀ Shutdownꢀ value.ꢀ Itꢀ willꢀ allowꢀ theꢀ converterꢀ
to turn on again when the temperature of the sensed location
fallsꢀbyꢀtheꢀamountꢀofꢀtheꢀOver-TemperatureꢀShutdownꢀRestartꢀ
Hysteresisꢀvalue.
It is not necessary for the user to add capacitance at the Trim
pin. The node is internally bypassed to eliminate noise.
Total DC Variation of V
specifications,ꢀtheꢀmaximumꢀvariationꢀofꢀtheꢀdcꢀvalueꢀofꢀV
:ꢀForꢀtheꢀconverterꢀtoꢀmeetꢀitsꢀfullꢀ
OUT
, due
OUT
to both trimming and remote load voltage drops, should not be
greater than that specified for the output voltage trim range.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 25
Technical
Specification
IQ24-QTC Family
Startup Inhibit Period:ꢀTheꢀStartupꢀInhibitꢀPeriodꢀensuresꢀthatꢀ
theꢀconverterꢀwillꢀremainꢀoffꢀforꢀapproximatelyꢀ200ꢀmsꢀwhenꢀitꢀisꢀ
shutꢀdownꢀforꢀanyꢀreason.ꢀꢀWhenꢀanꢀoutputꢀshortꢀisꢀpresent,ꢀthisꢀ
generatesꢀ aꢀ 5ꢀ Hzꢀ “hiccupꢀ mode,”ꢀ whichꢀ preventsꢀ theꢀ converterꢀ
from overheating. In all, there are seven ways that the converter
canꢀbeꢀshutꢀdown,ꢀinitiatingꢀaꢀStartupꢀInhibitꢀPeriod:
APPLICATIONꢀCONSIDERATIONS
Input System Instability: This condition can occur because
any dc-dc converter appears incrementally as a negative
resistanceꢀ load.ꢀ Aꢀ detailedꢀ applicationꢀ noteꢀ titledꢀ “Input
SystemꢀInstability”ꢀisꢀavailableꢀonꢀtheꢀSynQorꢀwebsite which
provides an understanding of why this instability arises, and
shows the preferred solution for correcting it.
•ꢀInputꢀUnder-VoltageꢀLockout
•ꢀOutputꢀOver-VoltageꢀProtection
•ꢀOverꢀTemperatureꢀShutdown
•ꢀCurrentꢀLimit
ꢂpplication Circuits:ꢀ Figureꢀ Dꢀ providesꢀ aꢀ typicalꢀ ꢀ circuitꢀ
diagram which details the input filtering and voltage trimming.
Input Filtering and ꢁxternal Capacitance:ꢀFigureꢀEꢀprovidesꢀ
a diagram showing the internal input filter components. This filter
dramatically reduces input terminal ripple current, which otherwise
could exceed the rating of an external electrolytic input capacitor.
The recommended external input capacitance is specified in the
Inputꢀ Characteristicsꢀ sectionꢀ onꢀ theꢀ Electricalꢀ Characteristicsꢀ
page.ꢀ ꢀ Moreꢀ detailedꢀ informationꢀ isꢀ availableꢀ inꢀ theꢀ applicationꢀ
note titled “EMIꢀCharacteristics”ꢀonꢀtheꢀSynQorꢀwebsite.
•ꢀShortꢀCircuitꢀProtection
•ꢀTurnedꢀoffꢀbyꢀtheꢀON/OFFꢀinput
FigureꢀFꢀshowsꢀthreeꢀturn-onꢀscenarios,ꢀwhereꢀaꢀStartupꢀInhibitꢀ
Periodꢀisꢀinitiatedꢀatꢀt0, t1, and t2:
Vout(+)
Vin(+)
Vsense(+)
Electrolytic
Capacitor
External
Input
Filter
R
trim-up
or
Vin
Trim
ON/OFF
C
R
load
trim-down
Iload
_
Vsense( )
_
_
Vin( )
Vout( )
Figure D: Typical application circuit (negative logic unit, permanently enabled).
L
Vin(+)
C
_
Vin( )
Figure E: Internal Input Filter Diagram (component values listed on the specifications page).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 26
Technical
Specification
IQ24-QTC Family
Beforeꢀtimeꢀt0,ꢀwhenꢀtheꢀinputꢀvoltageꢀisꢀbelowꢀtheꢀUVLꢀthreshold,ꢀ
theꢀunitꢀisꢀdisabledꢀbyꢀtheꢀInputꢀUnder-VoltageꢀLockoutꢀfeature.ꢀ
Whenꢀ theꢀ inputꢀ voltageꢀ risesꢀ aboveꢀ theꢀ UVLꢀthreshold,ꢀ theꢀ
InputꢀUnder-VoltageꢀLockoutꢀisꢀreleased,ꢀandꢀaꢀStartupꢀInhibitꢀ
Periodꢀisꢀinitiated.ꢀꢀAtꢀtheꢀendꢀofꢀthisꢀdelay,ꢀtheꢀON/OFFꢀpinꢀisꢀ
evaluated, and since it is active, the unit turns on.
maximum power the converter can dissipate for a given thermal
conditionꢀifꢀitsꢀbase-plateꢀisꢀtoꢀbeꢀnoꢀhigherꢀthanꢀ100ꢀºC.
100 ºCꢀ-ꢀTA
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀPmax
=
dissꢀꢀꢀꢀꢀꢀꢀRTH
BA
Thisꢀvalueꢀofꢀpowerꢀdissipationꢀcanꢀthenꢀbeꢀusedꢀinꢀconjunctionꢀ
withꢀtheꢀdataꢀshownꢀinꢀFigureꢀ2ꢀtoꢀdetermineꢀtheꢀmaximumꢀloadꢀ
currentꢀ(andꢀpower)ꢀthatꢀtheꢀconverterꢀcanꢀdeliverꢀinꢀtheꢀgivenꢀ
thermal condition.
Atꢀtimeꢀt1,ꢀtheꢀunitꢀisꢀdisabledꢀbyꢀtheꢀON/OFFꢀpin,ꢀandꢀitꢀcannotꢀ
beꢀenabledꢀagainꢀuntilꢀtheꢀStartupꢀInhibitꢀPeriodꢀhasꢀelapsed.
Whenꢀ theꢀ ON/OFFꢀ pinꢀ goesꢀ highꢀ afterꢀ t2,ꢀ theꢀ Startupꢀ Inhibitꢀ
Periodꢀhasꢀelapsed,ꢀandꢀtheꢀoutputꢀturnsꢀonꢀwithinꢀtheꢀtypicalꢀ
Turn-OnꢀTime.
Forꢀconvenience,ꢀFiguresꢀ3ꢀandꢀ4ꢀprovideꢀPowerꢀderatingꢀcurvesꢀ
for an encased converter without a heatsink and with a typical
1/4"ꢀhighꢀheatsink.
Thermal Considerations: The maximum operating base-
plate temperature, TB,ꢀisꢀ100ꢀºC.ꢀAsꢀlongꢀasꢀtheꢀuser’sꢀthermalꢀ
system keeps TB <ꢀ 100ꢀ ºC,ꢀ theꢀ converterꢀ canꢀ deliverꢀ itsꢀ fullꢀ
rated power.
Aꢀpowerꢀderatingꢀcurveꢀcanꢀbeꢀcalculatedꢀforꢀanyꢀheatsinkꢀthatꢀisꢀ
attached to the base-plate of the converter. It is only necessary
toꢀdetermineꢀtheꢀthermalꢀresistance,ꢀRTHBA, of the chosen heatsink
between the base-plate and the ambient air for a given airflow
rate. This information is usually available from the heatsink
vendor. The following formula can the be used to determine the
V
in
Under-Voltageꢀ
LockoutꢀTurn-
OnꢀThreshold
ON/OFF
(negꢀlogic)
ON
OFF
ON
OFF
ON
9ms (typical
turnꢀonꢀtime)
V
out
200ms
(typical start-up
inhibitꢀperiod)
200ms
200ms
t
t0
t1
t2
Figure F: Startup Inhibit Period (turn-on time not to scale)
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 27
Technical
Specification
IQ24-QTC Family
PꢂRT ꢀUMBꢁRIꢀG SꢄSTꢁM
ORDꢁRIꢀG IꢀFORMꢂTIOꢀ
Theꢀ partꢀ numberingꢀ systemꢀ forꢀ SynQor’sꢀ InQorꢀ dc-dcꢀ
converters follows the format shown in the example below.
The tables below show the valid model numbers and ordering
optionsꢀforꢀconvertersꢀinꢀthisꢀproductꢀfamily.ꢀꢀWhenꢀorderingꢀ
SynQorꢀconverters,ꢀpleaseꢀensureꢀthatꢀyouꢀuseꢀtheꢀcompleteꢀ
15ꢀcharacterꢀpartꢀnumberꢀconsistingꢀofꢀtheꢀ12ꢀcharacterꢀbaseꢀ
partꢀ numberꢀ andꢀ theꢀ additionalꢀ 3ꢀ charactersꢀ forꢀ options.
Aꢀ“-G”ꢀsuffixꢀindicatesꢀtheꢀproductꢀisꢀ6/6ꢀRoHSꢀcompliant.
IQ 24 018 Q T C 40 ꢀ R S - G
6/6ꢀRoHS
Options (see
OrderingꢀInformation)
Continuous
Input Voltage
Transient Input
Voltage
Output
Voltage
Maximum
Output Current
Model Number
OutputꢀCurrent
IQ24018QTC40xyz
IQ24033QTC30xyz
IQ24050QTC24xyz
IQ24070QTC17xyz
IQ24120QTC10xyz
IQ24150QTC08xyz
IQ24240QTC05xyz
IQ24300QTC04xyz
IQ24480QTC2Fxyz
18 - 36 V
18 - 36 V
18 - 36 V
18 - 36 V
18 - 36 V
18 - 36 V
18 - 36 V
18 - 36 V
18 - 36 V
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
50 V – 100 ms
1.8 V
3.3 V
5 V
40 A
30 A
24 A
17 A
10 A
8 A
5 A
4 A
2.5 A
ThermalꢀDesignꢀ(seeꢀOrderingꢀInfo)
7 V
PerformanceꢀLevel
PackageꢀSize
12 V
15 V
24 V
30 V
48 V
OutputꢀVoltage
InputꢀVoltage
ProductꢀFamily
The following options must be included in place of the x y z
spaces in the model numbers listed above.
Theꢀfirstꢀ12ꢀcharactersꢀcompriseꢀtheꢀbaseꢀpartꢀnumberꢀandꢀ
theꢀ lastꢀ 3ꢀ charactersꢀ indicateꢀ availableꢀ options.ꢀ ꢀ Theꢀ “-G”ꢀ
suffixꢀindicatesꢀ6/6ꢀRoHSꢀcompliance.
Options Description: x y z
Enable
Pin Length
Feature Set
Logic
N - Negative
R - 0.180"
S - Standard
ꢂpplication ꢀotes
Aꢀvarietyꢀofꢀapplicationꢀnotesꢀandꢀtechnicalꢀwhiteꢀpapersꢀcanꢀ
be downloaded in pdf format from our website.
Not all combinations make valid part numbers, please contact
SynQor for availability.
RoꢅS Compliance:ꢀTheꢀEUꢀledꢀRoHSꢀ(RestrictionꢀofꢀHazardousꢀ
Substances)ꢀ Directiveꢀ bansꢀ theꢀ useꢀ ofꢀ Lead,ꢀ Cadmium,ꢀ
Hexavalentꢀ Chromium,ꢀ Mercury,ꢀ Polybrominatedꢀ Biphenylsꢀ
(PBB),ꢀandꢀPolybrominatedꢀDiphenylꢀEtherꢀ(PBDE)ꢀinꢀElectricalꢀ
andꢀ Electronicꢀ Equipment.ꢀ ꢀ Thisꢀ SynQorꢀ productꢀ isꢀ 6/6ꢀ RoHSꢀ
compliant.ꢀ ꢀ Forꢀ moreꢀ informationꢀ pleaseꢀ referꢀ toꢀ SynQor’sꢀ
RoHSꢀaddendumꢀavailableꢀatꢀourꢀRoHSꢀComplianceꢀ/ꢀLeadꢀFreeꢀ
PꢂTꢁꢀTS
SynQorꢀholdsꢀtheꢀfollowingꢀpatents,ꢀoneꢀorꢀmoreꢀofꢀwhichꢀ
mightꢀapplyꢀtoꢀthisꢀproduct:
ꢀ
ꢀ
ꢀ
ꢀ
5,999,417ꢀ
6,594,159ꢀ
6,927,987ꢀ
7,119,524ꢀ
6,222,742ꢀ
6,731,520ꢀ
7,050,309ꢀ
7,269,034ꢀ
6,545,890ꢀ
6,894,468ꢀ
7,072,190ꢀ
7,272,021ꢀ
6,577,109
6,896,526
7,085,146
7,272,023
Initiative web page or e-mail us at rohs@synqor.com
.
Contact SynQor for further information:
Phone:ꢀ 978-849-0600
TollꢀFree:ꢀ 888-567-9596
Warranty
SynQorꢀoffersꢀaꢀthreeꢀ(3)ꢀyearꢀlimitedꢀwarranty.ꢀCompleteꢀwarrantyꢀ
information is listed on our website or is available upon request from
SynQor.
Fax:ꢀ
E-mail:ꢀ ꢀpower@synqor.com
Web:ꢀ www.synqor.com
Address:ꢀ 155ꢀSwansonꢀRoad
978-849-0602
Informationꢀ furnishedꢀ byꢀ SynQorꢀ isꢀ believedꢀ toꢀ beꢀ accurateꢀ andꢀ
reliable.ꢀꢀHowever,ꢀnoꢀresponsibilityꢀisꢀassumedꢀbyꢀSynQorꢀforꢀitsꢀuse,ꢀ
nor for any infringements of patents or other rights of third parties
whichꢀmayꢀresultꢀfromꢀitsꢀuse.ꢀNoꢀlicenseꢀisꢀgrantedꢀbyꢀimplicationꢀorꢀ
otherwiseꢀunderꢀanyꢀpatentꢀorꢀpatentꢀrightsꢀofꢀSynQor.
ꢀ
ꢀ
ꢀ
ꢀ
Boxborough,ꢀMAꢀ01719
USA
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 28
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