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ATO2815T Datasheet

HYBRID-HIGH RELIABILITY DC/DC CONVERTER

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PD - 94582A
HYBRID-HIGH RELIABILITY
DC/DC CONVERTER
ATO28XXT SERIES
28V Input, Triple Output
Description
The ATO28XXT Series of DC/DC converters feature
high power density and an extended temperature range
for use in military and industrial applications. Designed
to the nominal input requirements of MIL-STD-704D,
these devices have nominal 28VDC inputs with +5V
and ±12V or +5V and ±15V triple 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 250KHz. Input to output
isolation is achieved through the use of transformers in
the forward and feedback circuits.
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 feedback circuits.
Three standard temperature grades are offered. Refer
to Part Numbering section. They are provided in a
standard plug-in package for PC mounting or in a
flanged package for more severe environments.
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. Extensive computer simulation
using complex modeling enables modest design
modifications to be accommodated. Contact IR Santa
Clara with specific requirements.
ATO
Features
16V to 40VDC Input Range (28VDC Nominal)
5V, ±12V or 5V, ±15V Outputs Available
Indefinite Short Circuit and Overload Protection
15W Output Power
Fast Loop Response for Superior Transient
Characteristics
Operating Temperature Range from -55°C to
+125°C Available
Popular Industry Standard Pin-out
Resistance Seam Welded Case for Superior
Long Term Hermeticity
Efficiencies up to 81%
Shutdown from External Signal
200,000 Hour MTBF at 85°C
Standard Microcircuit Drawings Available
www.irf.com
1
01/12/07
http://www.Datasheet4U.com


International Rectifier Electronic Components Datasheet

ATO2815T Datasheet

HYBRID-HIGH RELIABILITY DC/DC CONVERTER

No Preview Available !

ATO28XXT Series
Specifications
TCASE = -55°C to +85°C, VIN = +28V ± 5% unless otherwise specified
Absolute Maximum Ratings
Input voltage
-0.5V to +50VDC
Power Output
Internally limited, 17.5W typical
Soldering temperature
300°C for 10 seconds
Temperature Range6
Operating case temperature
Storage case temperature
-55°C to +115°C
-65°C to +135°C
TEST
STATIC
CHARACTERISTICS
OUTPUT
Voltage 1
Current 1,2,3
Ripple Voltage 1,4
Power 1,2,3
REGULATION
Line 1,3
Load 1,3
INPUT
Current
Ripple Current 4
EFFICIENCY
ISOLATION
Load Fault
Power Dissipation 3
Switching Frequency
Inhibit Open Circuit
Voltage
SYMBOL
VOUT
IOUT
VRIP
POUT
VRLINE
VRLOAD
IIN
IRIP
EFF
ISO
PD
FS
VOI
Condition
-55°C TC +85°C, VIN = 28 VDC ±5%, CL=0
unless otherwise specified
IOUT = 0 (main)
IOUT = 0 (dual)1
VIN
VIN
=
=
16,
16,
28,
28,
and
and
40
40
VDC
VDC
(main)
(dual)1
VIN = 16, 28, and 40 VDC (dual)
BW = DC to 2 MHz (main)
VIN = 16, 28, and 40 VDC
BW = DC to 2 MHz (dual))
VIN = 16, 28, and 40 VDC (main)
(+dual)
(-dual)
(total)
VIN = 16, 28, and 40 VDC
IOUT = 0, 1000, 2000mA (main)
VIN = 16, 28, and 40 VDC (dual)
IOUT = 0, ±84, ±167mA (dual)
VIN = 16, 28, and 40 VDC
IOUT = 0, 1000, 2000mA (main)
VIN = 16, 28, and 40 VDC
IOUT = 0, ±84, ±167mA (dual)
IOUT = 0, Inhibit (pin 8)
Tied to input return (pin 10)
IOUT = 0, inhibit (pin 2) = open
IOUT = 2000 mA (main)
IOUT = ±167mA (dual)
BW = DC to 2MHz
IOUT = 2000mA (main)
IOUT = ±167mA (dual)
Input to output or any pin to
case (except pin 7) at 500 VDC
Overload
Short Circuit
IOUT = 2000mA (main)
IOUT = ±167mA (dual)
TC = 25°C
Over Temp
TC = 25°C
Over Temp
TC = 25°C
Over Temp
TC = 25°C
TC = 25°C
TC = 25°C
ATO2812T
Min Max
4.95
4.90
±11.88
±11.76
0.0
0.0
10
2.5
2.5
15
5.05
5.10
±12.12
±12.24
2000
±208
80
40
25
±30
±60
50
±60
15
40
50
76
100
8.0
6.0
225 275
9.0 13
ATO2815T
Min Max
Units
4.95
4.90
±14.85
±14.70
0.0
0.0
10
2.5
2.5
15
5.05
5.10
±15.15
±15.30
2000
±167
80
40
25
±35
±75
50
±75
V
V
V
V
mA
mA
mVp-p
mVp-p
W
W
W
W
mV
15 mA
40 mA
50 mAp-p
76 %
100 M
8.0 W
6.0
225 275 KHz
9.0 13 V
Notes to Specifications
1. Tested at each output.
2. Parameter guaranteed by line and load regulation tests.
3. At least 20 percent of the total output power should be taken from the (+5V) main output.
4. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
5. 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.
6. Above 85°C case temperature, derate output power linearly to 0 at 115°C case.
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Part Number ATO2815T
Description HYBRID-HIGH RELIABILITY DC/DC CONVERTER
Maker IRF
Total Page 7 Pages
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