IRF ATO2812TF/ES

PD - 94582A
ATO28XXT SERIES
28V Input, Triple Output
HYBRID-HIGH RELIABILITY
DC/DC CONVERTER
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.
Features
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-PRF38534, 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.
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ATO
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
1
01/12/07
ATO28XXT Series
Specifications
TCASE = -55°C to +85°C, VIN = +28V ± 5% unless otherwise specified
Absolute Maximum Ratings
Input voltage
Power Output
Soldering temperature
-0.5V to +50VDC
Internally limited, 17.5W typical
300°C for 10 seconds
Operating case temperature
Storage case temperature
Temperature Range 6
SYMBOL
TEST
STATIC
CHARACTERISTICS
OUTPUT
1
Voltage
VOUT
Condition
-55°C ≤ TC ≤ +85°C, VIN = 28 VDC ±5%, CL=0
unless otherwise specified
IOUT = 0 (main)
IOUT = 0 (dual)
Current
Power
IOUT
1,4
1,2,3
VRIP
POUT
REGULATION
Line 1,3
VRLINE
Load 1,3
VRLOAD
INPUT
Current
Ripple Current
TC = 25°C
Over Temp
TC = 25°C
Over Temp
1,2,3
Ripple Voltage
1
IIN
4
IRIP
EFFICIENCY
EFF
ISOLATION
ISO
Load Fault
3
Power Dissipation
Switching Frequency
PD
Inhibit Open Circuit
Voltage
VOI
FS
VIN = 16, 28, and 40 VDC (main)
1
VIN = 16, 28, and 40 VDC (dual)
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)
-55°C to +115°C
-65°C to +135°C
ATO2812T
ATO2815T
Min
Max
Min
Max
Units
4.95
4.90
±11.88
±11.76
0.0
0.0
5.05
5.10
±12.12
±12.24
2000
±208
80
4.95
4.90
±14.85
±14.70
0.0
0.0
5.05
5.10
±15.15
±15.30
2000
±167
80
V
V
V
V
mA
mA
mVp-p
40
mVp-p
40
TC = 25°C
Over Temp
TC = 25°C
76
TC = 25°C
100
25
25
±30
±60
50
±35
±75
50
±60
±75
15
15
mA
40
50
40
50
mA
mAp-p
mV
76
%
100
225
8.0
6.0
275
9.0
13
TC = 25°C
W
W
W
W
10
2.5
2.5
15
10
2.5
2.5
15
MΩ
225
8.0
6.0
275
W
KHz
9.0
13
V
Notes to Specifications
1.
2.
3.
4.
5.
Tested at each output.
Parameter guaranteed by line and load regulation tests.
At least 20 percent of the total output power should be taken from the (+5V) main output.
Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
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.
Above 85°C case temperature, derate output power linearly to 0 at 115°C case.
6.
2
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ATO28XXT Series
Specifications
TCASE = -55°C to +105°C, VIN = +28V ± 5% unless otherwise specified
A bso lu te M axim u m R ating s
In pu t vo ltag e
P ow er O utp ut
S old erin g te m p era ture
-0.5 V to +5 0V D C
Inte rna lly lim ited , 17 .5W typ ica l
30 0°C for 1 0 secon ds
O p era ting ca se tem pe ratu re
Sto rag e case te m p era ture
T em pe ratu re R an ge 6
TEST
STATIC
CHARACTERISTICS
OUTPUT
Voltage 1
SYMBOL
VOUT
Condition
-55°C ≤ TC ≤ +105°C, VIN = 28 V DC ±5%, C L=0
unless otherwise specified
IOUT = 0 (main)
IOUT = 0 (dual)
Current
1,2,3
Ripple Voltage 1,4
Power
1,2,3
IOUT
VRIP
POUT
REGULATION
Line 1,3
VR LINE
Load 1,3
VR LOAD
INPUT
Current
IIN
Ripple Current 4
IRIP
EFFICIENCY
EFF
ISOLATION
ISO
Load Fault
Power Dissipation 3
1
TC = 25°C
Over Temp
TC = 25°C
Over Temp
VIN = 16, 28, and 40 VDC (main)
VIN = 16, 28, and 40 VDC (dual)1
VIN = 16, 28, and 40 VDC
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)
TC = ±25°C
Input to output or any pin to
case (except pin 7) at 500 VDC
PD
Overload, TC = +25°C5
Short Circuit, TC = +25°C
FS
IOUT = 2000mA (main)
IOUT = ±167mA (dual)
-55 °C to +1 25 °C
-65 °C to +1 35 °C
ATO2812T/ES
ATO2815T/ES
Min
Max
Min
Max
Units
4.95
4.90
±11.88
±11.76
0.0
0.0
5.05
5.10
±12.12
±12.24
2000
±208
80
4.95
4.90
±14.85
±14.70
0.0
0.0
5.05
5.10
±15.15
±15.30
2000
±167
80
V
V
V
V
mA
mA
mVp-p
40
10
2.5
2.5
15
TC = 25°C
Over Temp
40
10
2.5
2.5
15
mVp-p
W
W
W
W
25
25
±30
±60
50
±35
±75
50
±60
±75
15
15
mA
40
50
40
50
mA
mAp-p
mV
TC = 25°C
76
76
%
TC = 25°C
100
100
MΩ
8.0
6.0
TC = 25°C
8.0
6.0
W
Switching Frequency
Inhibit Open Circuit
Voltage
VOI
225
275
225
275
KHz
9.0
13
9.0
13
V
Notes to Specifications
1.
2.
3.
4.
5.
6.
Tested at each output.
Parameter guaranteed by line and load regulation tests.
At least 20 percent of the total output power should be taken from the (+5V) main output.
Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
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.
Above 105°C case temperature, derate output power linearly to 0 at 125°C case
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3
ATO28XXT Series
Specifications
TCASE = -55°C to +125°C, VIN = +28V ± 5% unless otherwise specified
A bso lu te M axim u m R ating s
In pu t vo ltag e
P ow er O utp ut
S old erin g te m p era ture
-0.5 V to +5 0V D C
Inte rna lly lim ited , 17 .5W typ ica l
30 0°C for 1 0 secon ds
O p era ting ca se tem pe ratu re
Sto rag e case te m p era ture
T em pe ratu re R an ge 6
TEST
SYMBOL
STATIC
CHARACTERISTICS
OUTPUT
1
Voltage
VOUT
Condition
-55°C ≤ TC ≤+125°C, VIN = 28 VDC ±5%, CL=0
unless otherwise specified
IOUT = 0 (main)
IOUT = 0 (dual)1
Current
1,2,3
Ripple Voltage
Power
IOUT
1,4
VRIP
1,2,3
POUT
REGULATION
1,3
Line
Load
VRLINE
1,3
VRLOAD
INPUT
Current
Ripple Current
IIN
4
IRIP
EFFICIENCY
EFF
ISOLATION
ISO
Load Fault
Power Dissipation
3
TC = 25°C
Over Temp
TC = 25°C
Over Temp
VIN = 16, 28, and 40 VDC (main)
1
VIN = 16, 28, and 40 VDC (dual)
VIN = 16, 28, and 40 VDC
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)
TC = ±25°C
Input to output or any pin to
case (except pin 7) at 500 VDC
PD
Overload, TC = +25°C5
Short Circuit, TC = +25°C
FS
IOUT = 2000mA (main)
IOUT = ±167mA (dual)
-55 °C to +1 35 °C
-65 °C to +1 35 °C
ATO2812T/HB
ATO2815T/HB
Min
Max
Min
Max
Units
4.95
4.90
±11.88
±11.76
0.0
0.0
5.05
5.10
±12.12
±12.24
2000
±208
80
4.95
4.90
±14.85
±14.70
0.0
0.0
5.05
5.10
±15.15
±15.30
2000
±167
80
V
V
V
V
mA
mA
mVp-p
40
10
2.5
2.5
15
TC = 25°C
Over Temp
40
mVp-p
10
2.5
2.5
15
W
W
W
W
25
25
±30
±60
50
±35
±75
50
±60
±75
15
15
mA
40
50
40
50
mA
mAp-p
mV
TC = 25°C
76
76
%
TC = 25°C
100
100
MΩ
8.0
6.0
TC = 25°C
8.0
6.0
W
Switching Frequency
Inhibit Open Circuit
Voltage
VOI
225
275
225
275
KHz
9.0
13
9.0
13
V
Notes to Specifications
1.
2.
3.
4.
5.
Tested at each output.
Parameter guaranteed by line and load regulation tests.
At least 20 percent of the total output power should be taken from the (+5V) main output.
Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
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.
Above 125°C case temperature, derate output power linearly to 0 at 135°C case
6.
4
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ATO28XXT Series
Block Diagram
5 + Dual Vout
Regulator
4 - Dual Vout
EMI
Filter
1
2 +5V out
+Input
3 Output Return
Drive 1
8
Enable
Input
Pulse
Width Drive 2
Modulator
Error Amp
& Reference
FB
Input
Return
10
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
Drawing Number
5962-90954
5962-91602
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Vendor Cage
Code
52467
52467
IR Standard
Part Number
ATO2815T
ATO2812T
5
ATO28XXT Series
Mechanical Outlines
Flanged
Non-Flanged
1.000
0.05
7
10
8
3
4
6
2
5
1.350
Max
4 X 0.400
=1.600
1
1.950
Max
9
0.040 D X
0.26 L Pins
1.95
0.500
Max
0.500
Max
2.700
Max
2.360
1.350
Max
Pin Designation
Pin #
6
Designation
1
+ Input
2
+5V Output
3
Output Return
4
- Dual Output
5
+ Dual Output
6
NC
7
Case Ground
8
Enable Input
9
NC
10
Input Return
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ATO28XXT Series
Device Screening
Requirement
MIL-STD-883 Method
Non-Destructive
Bond Pull
ES HB
CH
-20°C to +85°C -55°C to +125°C -55°C to +125°C -55°C to +125°C
Temperature Range
Element Evaluation
No Suffix
MIL-PRF-38534
N/A
N/A
N/A
Class H
2023
N/A
N/A
N/A
N/A
Internal Visual
2017
Yes
Yes
Yes
Temperature Cycle
1010
N/A
Cond B
Cond C
Cond C
Constant Acceleration
2001, Y1 Axis
N/A
500 Gs
3000 Gs
3000 Gs
N/A
N/A
PIND
2020
N/A
N/A
Burn-In
1015
N/A
48 hrs@hi temp
Final Electrical
MIL-PRF-38534
25°C
25°C ( Group A )
& Specification
PDA
MIL-PRF-38534
N/A
Seal, Fine and Gross
1014
Radiographic
2012
External Visual
2009
160 hrs@125°C 160 hrs@125°C
-55°C, +25°C,
-55°C, +25°C,
+125°C
+125°C
N/A
N/A
10%
Cond A
Cond A, C
Cond A, C
Cond A, C
N/A
N/A
N/A
N/A
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
ATO 28 15 T F /CH
Model
Screening Level
Input Voltage
Nominal
No Suffix, ES, HB, CH
28 = 28V
Output Voltage
12 = 5V ±12V
15 = 5V ±15V
(Please refer to Screening Table)
Package Style
F = Flange
Blank = Non-Flanged
Output
T = Triple
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. 01/2007
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7