MAX15090AEVKIT [MAXIM]
2.7V to 18V Operating Voltage Range;
| 型号： | MAX15090AEVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 2.7V to 18V Operating Voltage Range |
| 文件： | 总8页 (文件大小：1208K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX15090/MAX15090A
Evaluation Kits
Evaluate: MAX15090/MAX15090A
General Description
Features
The MAX15090 evaluation kit (EV kit) provides a proven
design to evaluate the MAX15090 hot-swap controller
with an integrated 12A MOSFET. The MAX15090 EV
kit is configured to pass 12A in a 2.7V to 18V hot-swap
application, thus providing a fully integrated solution. The
MAX15090 EV kit uses the MAX15090EWI+ in a 3.5mm x
2mm, 28-bump, 0.5mm pitch wafer-level package (WLP)
with a proven four-layer PCB design. As configured, the
MAX15090 EV kit is optimized to operate at 12V.
●ꢀ 2.7Vꢀtoꢀ18VꢀOperatingꢀVoltageꢀRange
●ꢀ Upꢀtoꢀ12AꢀConfigurableꢀLoadꢀCurrentꢀCapability
●ꢀ BananaꢀJacksꢀforꢀInputꢀandꢀOutputꢀVoltage
●ꢀ ProgrammableꢀSlew-RateꢀControl
●ꢀ Selectable/ConfigurableꢀCircuit-BreakerꢀThreshold
●ꢀ ConfigurableꢀOvervoltage/UndervoltageꢀLockout
●ꢀ ProgrammableꢀTime-OutꢀDelay
●ꢀ FAULT and PG Outputs
The MAX15090A EV kit can be used to evaluate the
MAX15090A and uses the MAX15090AEWI+.
●ꢀ DefinedꢀSafeꢀOperationꢀArea
●ꢀ ProvenꢀPCBꢀLayout
Ordering Information appears at end of data sheet.
●ꢀ FullyꢀAssembledꢀandꢀTested
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
Redꢀtestꢀpoints
CDLY,ꢀGATE,ꢀ
1µFꢀ±10%,ꢀ25VꢀX7Rꢀceramicꢀ
capacitors (0603)
MurataꢀGRM188R71E105K
TDKꢀC1608X5R1E105M
GDRV,ꢀREG,ꢀ
UV,ꢀVCC
6
1
C1, C2
C3
2
1
1
1
6
18V, 600W transient voltage
suppressor (SMB)
FairchildꢀSMBJ18A
D1
5600pFꢀ±10%,ꢀ50VꢀX7Rꢀceramicꢀ
capacitor (0603)
MurataꢀGRM188R71H562K
TDKꢀC1608C0G1H562J
D2
D3
0
0
Not installed, Schottky diode (SMA)
Not installed, Schottky diode
(SOD523)
0.047µFꢀ±10%,ꢀ25VꢀX7Rꢀceramicꢀ
capacitor (0603)
MurataꢀGRM188R71E473K
TDKꢀC1608X7R1E473K
GNDꢀ(x2),ꢀIN,ꢀ
OUT
C4
4
Banana jacks
JU1
JU2
1
1
3-pin header
2-pin header
0.22µFꢀ±10%,ꢀ25VꢀX7Rꢀceramicꢀ
capacitor (0603)
MurataꢀGRM188R71E224K
TDKꢀC1608X7R1E224K
30V,ꢀ94Aꢀn-channelꢀMOSFETꢀ(DPAK)
IRFꢀIRLR8113TRPBF
C5
Q1
1
R1
R2
1
1
1
1
1
1
3
1
1
1
178kΩꢀ±1%ꢀresistorꢀ(0603)
5.23kΩꢀ±1%ꢀresistorꢀ(0603)
17.8kΩꢀ±1%ꢀresistorꢀ(0603)
10Ωꢀ±5%ꢀresistorꢀ(0603)
40.2kΩꢀ±5%ꢀresistorꢀ(0603)
1kΩꢀ±1%ꢀresistorꢀ(0603)
100kΩꢀ±5%ꢀresistorsꢀ(0603)
49.9Ωꢀ±1%ꢀresistorꢀ(0603)
50kΩꢀpotentiometerꢀ
10µFꢀ±10%,ꢀ25VꢀX7Rꢀceramicꢀ
capacitors (1206)
MurataꢀGRM31CR71E106K
TDKꢀC3216X5R1E106M
R3
C6–C11
R4
R5
Not installed, ceramic capacitor
(1206)
R6
C12
C13
C14
0
0
0
R7–R9
R10
R11
R12
Not installed, electrolytic capacitor
(Dꢀ=ꢀ11mm)
Not installed, ceramic capacitor
(0805)
0Ωꢀresistorꢀ(0603)
19-6532; Rev 0; 11/12
MAX15090/MAX15090A
Evaluation Kits
Evaluate: MAX15090/MAX15090A
Component List (continued)
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
—
—
2
1
Shunts
12A hot-swap solution (28 WLP)
Maxim MAX15090EWI+ or
Maxim MAX15090AEWI+
PCB:ꢀMAX15090ꢀEVALUATIONꢀKIT
U1
U2
1
1
General-purpose timer (8 SO)
Maxim ICM7555ISA
Component Suppliers
SUPPLIER
Fairchild Semiconductor
Murata Electronics North America, Inc.
STMicroelectronics
PHONE
WEBSITE
888-522-5372
770-436-1300
408-452-8585
847-803-6100
www.fairchildsemi.com
www.murata-northamerica.com
www.us.st.com
TDKꢀCorp.
www.component.tdk.com
Note: Indicate that you are using the MAX15090 when contacting these component suppliers.
the load using the banana jacks provided for the input and
Quick Start
output. PCB pads are provided to monitor and control the
device signals. The MAX15090 EV kit operates between
2.7V and 18V up to 12A load current capability.
Required Equipment
●ꢀ MAX15090ꢀEVꢀkit
●ꢀ 12V,ꢀ12AꢀDCꢀpowerꢀsupply
●ꢀ Voltmeter
Evaluating the MAX15090A
The MAX15090A EV kit can be used to evaluate the
MAX15090A, with the MAX15090AEWI+ installed. The
MAX15090A is pin-to-pin compatible with the MAX15090.
Referꢀ toꢀ theꢀ MAX15090/MAX15090Aꢀ ICꢀ dataꢀ sheetꢀ forꢀ
details on the MAX15090A.
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation. Caution: Do not turn on
the power supply until all connections are completed.
Circuit Breaker (CB)
1) Verify that a shunt is installed across pins 1-2 on
jumperꢀJU1.
JumperꢀJU1ꢀsetsꢀtheꢀcurrentꢀlimitꢀforꢀtheꢀinternalꢀcircuitꢀ
breaker (CB) of the device. The CB pin can be connected
toꢀaꢀfixedꢀresistorꢀ(R5)ꢀorꢀaꢀpotentiometerꢀ(R11)ꢀtoꢀsetꢀtheꢀ
current limit. See Table 1 for shunt positions.
2) Turn on the power supply and set the supply to 12V,
then disable the power supply.
3) Connect the positive terminal of the power supply to
the IN banana jack on the EV kit. Connect the negative
terminalꢀofꢀtheꢀpowerꢀsupplyꢀtoꢀtheꢀGNDꢀbananaꢀjack.
The circuit-breaker threshold can be set according to the
following formula:
I
ꢀ=ꢀR /3333.3
CB
CB
4) Enable the power supply.
where I ꢀisꢀinꢀAꢀandꢀR
ground)ꢀisꢀinꢀΩ.
(the resistor between CB and
CB
CB
5)ꢀ Verifyꢀ thatꢀ theꢀ voltageꢀ betweenꢀ theꢀ OUTꢀ andꢀ GNDꢀ
banana jacks is 12V.
6)ꢀ Verifyꢀthatꢀtheꢀinternalꢀregulatorꢀvoltageꢀ(REG)ꢀisꢀ3.3V.
Table 1. JU1 Jumper Selection (CB)
7) The EV kit is now ready for additional evaluation.
SHUNT
POSITION
CB PIN
CONNECTED TO
CURRENT LIMIT
Detailed Description of Hardware
The MAX15090 EV kit provides a proven design to
evaluate the MAX15090. The MAX15090 EV kit can be
conveniently connected between the system power and
1-2*
2-3
R5
12A
R11
Adjustable
*Default position.
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MAX15090/MAX15090A
Evaluation Kits
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Table 2. JU2 Jumper Selection (EN)
SHUNT
POSITION
TIME-OUT DELAY
EN PIN
Installed
ForcedꢀtoꢀGND
Bypassed
Not installed*
SetꢀlowꢀwhenꢀC5ꢀisꢀchargedꢀtoꢀ2/3ꢀxꢀOUT;ꢀtimingꢀisꢀsetꢀbyꢀR7/C5
47ms (set by C4)
*Default position.
Setting Time-Out Delay for EN (CDLY)
Undervoltage Lockout
Capacitor C4 is used to set the time-out delay for EN to go
low to prevent internal MOSFET shutdown after power-
up.ꢀThisꢀisꢀsetꢀatꢀaꢀrateꢀofꢀ1s/µF.ꢀTheꢀEVꢀkitꢀisꢀconfiguredꢀ
for a 47ms time-out delay.
The EV kit provides an option to configure the undervolt-
age-lockout threshold. The undervoltage-lockout thresh-
old for the device is configured by the IN voltage level
dividedꢀbyꢀR1ꢀandꢀ(R2ꢀ+ꢀR3)ꢀatꢀtheꢀUVꢀpin.ꢀByꢀdefault,ꢀtheꢀ
undervoltage-lockout threshold is set to 10.8V.
Delayed EN
Overvoltage Lockout
The IC’s EN pin must be pulled low before the time-out
delay set by capacitor C4 elapses. The EV kit provides
aꢀ simpleꢀ timerꢀ circuitꢀ comprisedꢀ ofꢀ U2,ꢀ R7,ꢀ andꢀ C5ꢀ toꢀ
pull the EN pin low before the time-out delay. Once PG
assertsꢀ asꢀ open-drain,ꢀ R7ꢀ beginsꢀ toꢀ chargeꢀ C5ꢀ toꢀ theꢀ
outputꢀvoltageꢀ(OUT).ꢀWhenꢀC5ꢀchargesꢀtoꢀ2/3ꢀxꢀOUT,ꢀU2ꢀ
pulls the EN pin low. The EV kit is configured to have EN
pulled low after ~22ms.
The EV kit provides an option to configure the overvolt-
age-lockout threshold. The overvoltage-lockout threshold
for the device is configured by the IN voltage level divided
byꢀ(R1ꢀ+ꢀR2)ꢀandꢀR3ꢀatꢀtheꢀOVꢀpin.ꢀByꢀdefault,ꢀtheꢀover-
voltage-lockout threshold is set to 13.2V.
Current-Sense Output (ISENSE)
The IC’s ISENSE pin is the output of an accurate current-
sense amplifier and provides a source current propor-
tional to the load current flowing into the main switch. The
factory-trimmedꢀ currentꢀ ratioꢀ isꢀ setꢀ toꢀ 220µA/A.ꢀ Onꢀ theꢀ
EV kit, this allows producing a scaled voltage by routing
resistorꢀR6ꢀfromꢀISENSEꢀtoꢀGND.ꢀThisꢀvoltageꢀsignalꢀthenꢀ
goesꢀtoꢀanꢀADCꢀandꢀprovidesꢀdigitizedꢀinformationꢀofꢀtheꢀ
current supplied to the powered system.
JumperꢀJU2ꢀisꢀalsoꢀprovidedꢀtoꢀbypassꢀtheꢀtime-outꢀdelayꢀ
and force ENꢀlow,ꢀifꢀinstalled.ꢀSeeꢀTableꢀ2ꢀforꢀJU2ꢀsettings.
Setting the Output Slew Rate
An external capacitor (C3) is connected from GATE to
GNDꢀ onꢀ theꢀ ICꢀ toꢀ reduceꢀ theꢀ outputꢀ slewꢀ rateꢀ duringꢀ
startup.ꢀDuringꢀstartup,ꢀaꢀ5.7µAꢀ(typ)ꢀcurrentꢀisꢀsourcedꢀtoꢀ
enhanceꢀtheꢀinternalꢀMOSFETꢀwithꢀ10V/msꢀ(typ).ꢀC3ꢀcanꢀ
be calculated according to the following formula:
C3ꢀ=ꢀ(I ꢀxꢀ∆t)/∆V
GATE GATE
where I
ꢀisꢀ5.7µAꢀ(typ),ꢀ∆tꢀisꢀtheꢀdesiredꢀslewꢀrate,ꢀ
GATE
andꢀ ∆V
is the voltage at the gate of the internal
GATE
MOSFET at turn-on.
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MAX15090/MAX15090A
Evaluation Kits
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G P
D
G N
C 2
D
G N
C 1
D
G N
B 2
B
E N
1
Figure 1. MAX15090 EV Kit Schematic
Maxim Integrated
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MAX15090/MAX15090A
Evaluation Kits
Evaluate: MAX15090/MAX15090A
Figure 2. MAX15090 EV Kit Component Placement Guide—
Component Side
Figure 3. MAX15090 EV Kit PCB Layout—Component Side
Figure 4. MAX15090 EV Kit PCB Layout— Layer 2 (PWR/GND)
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MAX15090/MAX15090A
Evaluation Kits
Evaluate: MAX15090/MAX15090A
Figure 5. MAX15090 EV Kit PCB Layout—Layer 3 (GND)
Figure 6. MAX15090 EV Kit PCB Layout—Solder Side
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MAX15090/MAX15090A
Evaluation Kits
Evaluate: MAX15090/MAX15090A
Ordering Information
PART
TYPE
EVꢀKit
EVꢀKit
MAX15090EVKIT#
MAX15090AEVKIT#
#Denotes RoHS compliant.
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MAX15090/MAX15090A
Evaluation Kits
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Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
11/12
Initial release
—
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2012 Maxim Integrated Products, Inc.
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