ATW2812DCH-MSTR [INFINEON]
HYBRID-HIGH RELIABILITY DC/DC CONVERTERS; 混合高可靠性DC / DC转换器
| 型号： | ATW2812DCH-MSTR |
| 厂家： | 
Infineon |
| 描述： | HYBRID-HIGH RELIABILITY DC/DC CONVERTERS |
| 文件： | 总8页 (文件大小：140K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-94557A
ATW28XXD SERIES
28V Input, Dual Output
HYBRID-HIGH RELIABILITY
DC/DC CONVERTERS
Description
The ATW28XXD Series of DC/DC converters feature
high power density and an extended temperature range
for use in military and industrial applications. Designed
to MIL-STD-704 input requirements, these devices
operate with a nominal 28VDC inputs with ±12V and
±15V dual outputs to satisfy a wide range of requirements.
The circuit design incorporates a pulse width modulated
push-pull topology operating in the feed-forward mode
at a nominal switching frequency of 270KHz. Input to
output isolation is achieved through the use of
transformers in the forward and feedback circuits.
ATW
Features
n 18V to 40VDC Input Range (28VDC Nominal)
±12V and ±15V Outputs Available
n
n Indefinite Short Circuit and Overload Protection
n 22.8W/in3 Power Density
n 30W Output Power
n Fast Loop Response for Superior Transient
Characteristics
n Operating Temperature Range from -55°C to
+125°C Available
n Popular Industry Standard Pin-Out
n Resistance Seam Welded Case for Superior
Long Term Hermeticity
The advanced feedback design provides fast loop
response for superior line and load transient
characteristics and offers greater reliability and radiation
tolerance than devices incorporating optical elements
in the feedback circuits.
n Efficiencies up to 85%
n Shutdown from External Signal
n Full Military Screening
n 200,000 hour MTBF at 85°C
n Standard Microcircuit Drawings Available
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DSCC
qualified processes. For available screening options,
refer to device screening table in the data sheet.
Variations in electrical, mechanical and screening can
be accommodated. Contact IR Santa Clara for special
requirements.
www.irf.com
1
12/14/06
ATW28XXD Series
Specifications
ATW2812D
Absolute Maximum Ratings
Input voltage
-0.5V to +50VDC
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Soldering temperature
Operating case temperature
Storage case temperature
Table I. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Subgroups
Device
Types
Limits
Unit
V
-55°C ≤Tc ≤+125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
±12.12
±12.24
2250
Output voltage
VOUT
IOUT
VRIP
IOUT = 0
1
2,3
1,2,3
All
±11.88
±11.76
250
Output current 1, 2
Output ripple voltage 3
Line regulation 4
VIN = 18, 28, and 40 V dc,
each output
VIN = 18, 28, and 40 V dc,
B.W. = 20Hz to 2MHz
VIN = 18, 28, and 40 V dc,
Iout = 0,1250, and 2500mA
All
All
All
mA
mVp-p
mV
1,2,3
1
85
30
VRLINE
2,3
1,2,3
60
120
Load regulation 4
VRLOAD
VIN = 18, 28, and 40 V dc,
IOUT = 0, 1250, and 2500mA
10% to 90% load change
IOUT = 0, inhibit (pin 8)
tied to input return (pin 10)
IOUT = 0,inhibit (pin 8)=
open
IOUT = 2500mA
B.W. = 20Hz to 2MHz
IOUT = 2500mA
All
mV
Cross regulation 5
Input current
VRCROSS
IIN
1,2,3
1,2,3
All
All
3.5
18
%
mA
50
50
Input ripple current 3, 4
Efficiency 4
IRIP
EFF
1,2,3
1
All
All
mAp-p
%
80
°
TC = +25 C
Isolation
ISO
CL
Input to output or any pin
to case (except pin 7) at
500 V dc Tc = +25°C
No effect on dc
1
4
All
All
All
01
100
MΩ
µF
W
Capacitive load 6, 7
200
12
performance, Tc = +25°C,
total for both outputs
Overload, TC = +25 C
8
Power dissipation
load fault
PD
1
°
9.0
300
Short circuit, TC = +25°C
IOUT = 2500mA
Switching frequency 4
FS
4,5,6
250
KHz
02
03
All
250
275
-400
270
300
+400
Output response to step
transient load
VOTLOAD
1250mA to/from 2500mA
4,5,6
mV pk
changes 4, 9
0mA to/from 2500mA
1250mA to/from 2500mA
4,5,6
4,5,6
All
All
-800
+800
70
Recovery time step
transient load
TTLOAD
µs
changes 4, 9, 10
0mA to/from 1250mA
1250mA to/from 0mA
4,5,6
4,5,6
All
All
500
5.0
ms
For Notes to Specifications, refer to page 3
2
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ATW28XXD Series
ATW2812D
Table I. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Subgroups
Device
Types
Limits
Unit
≤
≤
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Min
Max
Output response
transient step line
changes 4, 7, 11
VOTLINE
Input step from/to 18 to 40
Vdc, IOUT = 2500mA
4,5,6
4,5,6
All
All
-800
+800
mV pk
Recovery time
TTLINE
Input step from/to 18 to 40
Vdc, IOUT = 2500mA
4000
µs
transient step line
change 4, 7, 10, 11
Turn on overshoot 4
Turn on delay 4, 12
VTonOS
TonD
IOUT = 0 and 2500mA
IOUT = 0 and 2500mA
4,5,6
4,5,6
All
All
750
14
mV pk
ms
Load fault recovery 7
Weight
TrLF
4,5,6
All
14
75
ms
g
Flange
Notes to Specifications
1
2
3
4
5
6
Parameter guaranteed by line, load and cross regulation tests.
Up to 90% of full power is available from either output provided the total output does not exceed 30W.
Bandwidth guaranteed by design. Tested for 20KHz to 2MHz.
Load current split equally between +VOUT and –VOUT
.
Three-watt load on output under test, 3.0W to 27W load change on other output.
Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the
operation of the load fault detection circuitry, appearing as a short circuit during turn-on.
Parameter shall be tested as part of design characterization and after design or process changes.
Thereafter, parameters shall be guaranteed to the limits specified in Table I.
An overload is that condition with a load in excess of the rated load but less than that necessary to
trigger the short circuit protection and is the condition of maximum power dissipation.
Load step transition time between 2.0µs and 10µs.
7
8
9
10 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50%load.
11 Input step transition time between 2.0µs and 10µs.
12 Turn-on delay time measurement is for either a step application of power at the input or the removal of
ground signal from the inhibit pin (pin 8) while power is applied to the input.
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3
ATW28XXD Series
Specifications
ATW2815D
Absolute Maximum Ratings
Input voltage
-0.5V to +50VDC
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Soldering temperature
Operating case temperature
Storage case temperature
Table II. Electrical Performance Characteristics
Test
Symbol
Conditions
-55°C ≤Tc ≤+125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
Group A
Subgroups
Device
Types
Limits
Unit
Min
Max
Output voltage
VOUT
VIN = 18, 28, and 40 Vdc
IOUT = 0
VIN = 18, 28, and 40 V dc
VIN = 18, 28, and 40 V dc,
B.W. = DC to MHz
VIN = 18, 28, 40 Vdc
1
2,3
1,2,3
1,2,3
All
All
All
All
VDC
VDC
mADC
mVp-p
±14.85 ±15.15
±14.70 ±15.30
Output current 11, 13
IOUT
VRIP
0.200
2000
Output ripple voltage 8
85
Output Power 4, 11
Line regulation 9, 10
POUT
VRLINE
1,2,3
1
All
All
30
W
mV
VIN = 18, 28, and 40 V dc,
Iout = 0, 1000, and 2000mA
35
2,3
1,2,3
All
All
75
150
mV
mV
10
Load regulation 9,
VRLOAD
IIN
VIN = 18, 28, and 40 V dc,
IOUT = 0, 1000, and 2000mA
IOUT = 0, inhibit (pin 8)
IOUT = 0, inhibit (pin 8) = open
IOUT = 2000mA
IOUT = 2500mA TC = 25°C
Input to output or any pin
to case (except pin 8) at
500V dc Tc = 25°C
Input current
1,2,3
1,2,3
1,2,3
1
All
All
All
All
All
12
30
60
mADC
mADC
mAp-p
%
Input ripple current
Efficiency
IRIP
EFF
ISO
80
100
Isolation
1
MΩ
Capacitive load 6, 12
CL
PD
No effect on dc performance,
Tc = 25°C
4
1
All
All
500
9.0
µF
W
Overload, TC = +25°C 3
Power dissipation
load fault
1
All
01
02
03
All
9.0
263
245
265
+300
W
°
Short circuit, TC = +25 C
IOUT = 2000mA
Switching frequency
FS
1,2,3
1,2,3
1,2,3
4,5,6
237
230
250
-300
KHz
KHz
KHz
mV pk
Output response to step
transient
VOTLOAD 50% load to/from 100% load
load changes 7, 9, 10
No load to 100% load
100% load to no load
50% load to/from 100% load
4,5,6
4,5,6
4,5,6
All
All
All
-800
+800
-800
+800
25
mV pk
mV pk
µs
Recovery time step
TTLOAD
transient load changes1, 7
No load to 50% load
50% load to no load
4,5,6
4,5,6
All
All
500
7.0
µs
ms
For Notes to Specifications, refer to page 5
4
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ATW28XXD Series
ATW2815D
Table II. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Subgroups
Device
Types
Limits
Unit
≤
≤
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Min
Max
Output response
transient step line
changes 5, 12
VOTLINE
Input step from/to 18 to
40VDC
4,5,6
All
+180
mV pk
Input step from 40 to18 VDC
Input step from/to 18 to 40
VDC
4,5,6
4,5,6
All
All
-600
400
mV pk
µs
Recovery time
transient step line
changes 1. 5, 12
TTLINE
Input step from 40 to 18 VDC
IOUT = 0 and 2000mA
IOUT = 0 and 2000mA
4,5,6
4,5,6
4,5,6
All
All
All
400
750
12
µs
mV pk
ms
Turn on overshoot
Turn on delay 2
VTonOS
TonD
Load fault recovery 12
Weight
TrLF
VIN = 18 to 40 VDC
Flange
4,5,6
All
12
75
ms
g
Notes to Specifications
1
2
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load.
Turn-on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the
inhibit pin (pin 8) while power is applied to the input.
3
An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit
protection and is the condition of maximum power dissipation.
4
5
6
Above +125°C case, derate output power linearly to 0 at +135°C case.
Input step transition time between 2.0µs and 10µs.
Capacitive load may be any value from 0 to the maximum limit without compromising DC performance. A capacitive load in
excess of the maximum limit will not disturb loop stability but will interfere with the operation of the load fault detection circuitry,
appearing as a short circuit during turn on.
7
8
9
Load step transition time between 2.0µs and 10µs.
Bandwidth guaranteed by design. Tested for 20KHz to 2MHz.
Load current split equally between +VOUT and –VOUT
.
10 When operating with unbalanced loads, at least 25% of the load must be on the positive output to maintain regulation.
11 Parameter guaranteed by line and load regulation tests.
12 Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be
guaranteed to the limits specified in Table II.
13 Up to 90% of full power is available from either output provided the total output does not exceed 30W.
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5
ATW28XXD Series
Block Diagram
3
4
5
+Vout
+Input
EMI
Filter
Output
Return
1
Enable
8
-Vout
Drive 1
Drive 2
Sync
Pulse Width
Modulator
Error Amp
& Reference
FB
2
Input
Return
10
Application Information
Inhibit Function (Enable)
Connecting the inhibit input (Pin 8) to input common (Pin 10)
will cause the converter to shut down. It is recommended
that the inhibit pin be driven by an open collector device
capable of sinking at least 400µA of current. The open
circuit voltage of the inhibit input is 11.5 ±1.0VDC.
The user should be aware that the synchronization
system is fail-safe; that is, the slaves will continue
operating should the master frequency be interrupted for
any reason. The layout must be such that the synchronization
output (pin 2) of the master device is connected to the
synchronization input (pin 2) of each slave device. It is
advisable to keep this run short to minimize the possibility
of radiating the 250KHz switching frequency.
EMI Filter
An optional external EMI filter (AFC461) is available that will
reduce the input ripple current to levels below the limits
imposed by MIL-STD-461B CEO3.
The appropriate parts must be ordered to utilize this
feature. After selecting the converters required for the
system, a ‘MSTR’ suffix is added for the master converter
part number and a ‘SLV’ suffix is added for slave part
number. See Part Number section.
Device Synchronization
Whenever multiple DC/DC converters are utilized in a single
system, significant low frequency noise may be generated
due to the slight differences in the switching frequencies of
the converters (beat frequency noise). Because of the low
frequency nature of this noise (typically less than 10KHz), it
is difficult to filter out and may interfere with proper operation
of sensitive systems (communications, radar or telemetry).
International Rectifie roffers an option,which allows
synchronization of multiple AHE/ATW type converters, thus
eliminating this type of noise.
Typical Synchronization Connection
+ In
Output
Return
+ In
Output
Return
AFC461
or
AFV461
Case
Return
ATW28xxS
Return
MSTR
To take advantage of this capability, the system designer
must assign one of the converters as the master. Then, by
definition, the remaining converters become slaves and will
operate at the masters’ switching frequency.
System
Bus
+ In
ATW28xxD Output
or Other
Return
Case
Return Compatable Output
SLV
Output
+ In
Return
Output
Case
ATW28xxD
Return
SLV
6
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ATW28XXD Series
Mechanical Outline
1.000
0.05
0.040 D X
0.26 L Pins
2.700
Max
4 X 0.400
=1.600
2.360
1.95
0.500
Max
1.350
Max
Notes:
1) All dimensions are in inches
2) The tolerance for X.XXX = ±0.005
Pin Designation
Pin #
Designation
+ Input
1
2
NC Standard or
Sync. ( Optional )
+ Output
3
4
Output Return
- Output
5
6
NC
7
Case Ground
Enable
8
9
NC
10
Input Return
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
Drawing Number
5962-92109
Vendor Cage
Code
IR Standard
Part Number
ATW2812D
52467
5962-91613
ATW2815D
52467
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7
ATW28XXD Series
Device Screening
Requirement
MIL-STD-883 Method No Suffix
ES
HB
CH
Temperature Range
Element Evaluation
Non-Destructive
Bond Pull
-20°C to +85°C -55°C to +125°C
-55°C to +125°C -55°C to +125°C
MIL-PRF-38534
2023
N/A
N/A
N/A
N/A
Class H
N/A
N/A
N/A
Internal Visual
Temperature Cycle
Constant Acceleration
PIND
2017
1010
Yes
Cond B
500 Gs
N/A
Yes
Cond C
3000 Gs
N/A
Yes
Cond C
3000 Gs
N/A
N/A
N/A
2001, Y1 Axis
2020
N/A
Burn-In
1015
N/A
48 hrs@hi temp 160 hrs@125°C 160 hrs@125°C
Final Electrical
( Group A )
MIL-PRF-38534
& Specification
MIL-PRF-38534
1014
25°C
25°C
-55°C, +25°C,
+125°C
N/A
-55°C, +25°C,
+125°C
10%
PDA
N/A
Cond A
N/A
N/A
Cond A, C
N/A
Seal, Fine and Gross
Radiographic
External Visual
Cond A, C
N/A
Cond A, C
N/A
2012
2009
Yes
Yes
Yes
Notes:
Best commercial practice
Sample tests at low and high temperatures
-55°C to +105°C for AHE, ATO, ATW
Part Numbering
ATW 28 15 D /CH - MSTR
Sync Option
Model
MSTR = Master
SLV = Slave
Input Voltage
Omit for Standard
Nominal
28 = 28V
Screening Level
(Please refer to Screening Table)
No Suffix, ES, HB, CH
Output Voltage
12 = ±12V
Output
D = Dual
15 = ±15V
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR SANTA CLARA: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 12/2006
8
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