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International Rectifier Electronic Components Datasheet

ATR2815T Datasheet

HYBRID-HIGH RELIABILITY DC-DC CONVERTER

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HYBRID-HIGH RELIABILITY
DC-DC CONVERTER
PD-94551E
ATR28XXT SERIES
28V Input, Triple Output
Description
The ATR28XXT Series of DC-DC converters provide
30W of output power over the full military temperature
range with no derating. These devices are pin compatible
with the ATO series converters but offer twice the maximum
output power in a lower profile package. A custom CMOS
ASIC pulse width modulator operating at a nominal
switching frequency of 550kHz combined with a unique
magnetic feedback reduces circuit complexity for enhanced
reliability. These converters provide 500V input to output
isolation and operate in highly efficient single forward
mode.
The advanced feedback design and high operating frequency
provide an extremely wide bandwidth control loop with
high gain and phase margin. This results in fast dynamic
line and load response as well as superior audio rejection.
The control loop is compensated to provide optimum
performance over the full military temperature range and
over the 16V to 40V input voltage range.
These converters are protected against both continuous
output short circuits and output overload. Either load
fault condition will result in operating in a low power dissipation
fold back mode. The converters will shut down for
approximately 15ms, then attempt to restart. This cycle
will continue indefinitely unless the load fault is corrected.
Recovery to normal operation is automatic upon removal
of the load fault.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DLA Land
and Maritime qualified processes. For available screening
options, refer to device screening table in the data sheet.
Variations in electrical, mechanical and screening specifications
can be accommodated. Contact IR HiRel San Jose for
special requirements.
ATR
Features
30W Output Power
Flexible Output Loading
-55°C to +125°C Operation
Pin Compatible with ATO
0.410” Maximum Height
16V to 40VDC Input Range
500V Input to Output Isolation
High Audio Rejection
MIL-STD-704 Compatible
Load Fault Protection - Short Circuit and Overload
TTL level Compatible Synchronization
Standard Microcircuit Drawings Available
1 2017-03-23


International Rectifier Electronic Components Datasheet

ATR2815T Datasheet

HYBRID-HIGH RELIABILITY DC-DC CONVERTER

No Preview Available !

ATR28XXT SERIES
(28V Input, Triple Output)
Specifications
Absolute Maximum Ratings
Input voltage range
Power Output
Lead temperature
Soldering temperature
Temperature Range6
-0.5VDC to +50VDC
Internally limited, 37.5W typical
300°C
300°C for 10second
Operating case temperature
Storage temperature
-55°C to +135°C
-65°C to +135°C
Static Characteristics TCASE = -55°C to +125°C, VIN = +28V ± 5 % unless otherwise specified.
Test Conditions
ATR2812T
ATR2815T
Parameter
Symbol
-55°C TC +125°C,
VIN = 28 VDC ± 5%, CL=0,
unless otherwise specified
Min. Max. Min. Max.
Output voltage1
VOUT
IOUT = 0 (main) +25°C
over temp. range
IOUT = 0 (dual)1 +25°C
over temp. range
4.95
4.90
±11.88
±11.76
5.05
5.10
±12.12
±12.24
4.95
4.90
±14.85
±14.70
5.05
5.10
±15.15
±15.30
Unit
VDC
Output current1,2,3,4
Output ripple voltage1,5
IOUT
VIN
VIN
=
=
16,
16,
28,
28,
and
and
40VDC
40VDC
(main)
(dual)1
100 4000
0.0 ±625
100
0.0
4000
±500
mAdc
VIN = 16, 28, and 40VDC (dual)
VRIP
BW = 20Hz to 2MHz (main)
VIN = 16, 28, and 40 VDC
BW = 20Hz to 2MHz (dual)
60
40
60
mVp.p
40
Line regulation1,3
VRLINE
VIN = 16, 28, and 40VDC
POUT = 0.5, 7.5, 15W (main)
VIN = 16, 28, and 40VDC (dual)
POUT = 1.2/1.5, 7.5 and 15W (dual)
Load regulation1.3
VRLOAD
VIN = 16, 28, and 40VDC
POUT = 0.5, 7.5, 15W (main)
VIN = 16, 28, and 40 VDC
POUT = 1.2/1.5, 7.5, and 15W (dual)
Input current
IIN
Input ripple current4
IRIP
Efficiency
Isolation
Load fault power dissipation
EFF
ISO
PD
IOUT = 0, inhibit (pin 8)
Tied to input return (pin 10)
IOUT = 0, inhibit (pin 8) = open
IOUT = 3000mA (main)
POUT = 15W (dual)
BW = 20Hz to 2MHz
IOUT = 3000mA (main) +25°C
POUT = 15W (dual)
over temp. range
Input to output or any pin to case
(except pin 8)
Overload
Short circuit
Switching frequency
SYNC frequency range
Inhibit open circuit voltage
FS
FSYNC
VOI
50% load to/from 100% load
no load to/from 50% load
For Notes to Specifications, refer to page 3
75
72
100
500
500
9.0
±25
±60
±50
±60
15
75
50
14
9.0
600
700
13
±25 mV
±75
±50 mV
±75
15
mA
75
50 mAp.p
75
%
72
100 M
14
9.0
W
500 600 kHz
500 700 kHz
9.0 13 V
2 2017-03-23


Part Number ATR2815T
Description HYBRID-HIGH RELIABILITY DC-DC CONVERTER
Maker International Rectifier
Total Page 7 Pages
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