IRF AMA2805DEM Hybrid - high reliability radiation tolerant dc/dc converter Datasheet

PD-94687E
AMA28XXS SERIES
28V Input, Single Output
HYBRID - HIGH RELIABILITY
RADIATION TOLERANT
DC/DC CONVERTER
Description
The AMA28XXS series of DC/DC converter modules
has been specifically designed for operation in
moderate radiation environments supplementing the
higher radiation performance available in the
International Rectifier ART2815T converter series.
Environments presented to space vehicles operating
in low earth orbits, launch boosters, orbiting space
stations and similar applications requiring a low power,
high performance converter with moderate radiation
hardness performance will be optimally served by the
AMA28XXS Series.
The physical configuration of the AMA28XXS series
permits mounting directly to a heat conduction surface
without the necessity of signal leads penetrating the
heat sink surface. This package configuration permits
greater independence in mounting and more mechanical
security than traditional packages. International
Rectifiers’srugged ceramic seal pins are used
exclusively in the package thereby assuring long term
hermeticity.
AMA
Features
n
n
n
n
n
n
n
n
n
n
n
5.0 Watts Output Power
Available in 5, 12 and 15 Volt Outputs
16 - 40 VDC Input Range (28 VDC Nominal)
Total Ionizing Dose > 25KRads (Si)
2
SEE Hardened to LET up to 60 MeV.cm /mg
-55°C to +125°C Operating Range
Indefinite Short Circuit Protection
Flexible Mounting
Fully Isolated - Input to Output and to Case
Complimentary EMI Filter Available
Electrical Performance Similar to
ASA28XXS Series
n Standard Microcircuit Drawings Available
The AMA28XXS has been designed for high density
using chip and wire hybrid technology that complies
with the class H requirements of MIL-PRF-38534.
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. Applicable
generic lot qualification test data including radiation
performance can be made available on request.
Variations to the standard screening can be accommodated.
Consult IR Santa Clara for special requirements.
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1
07/08/09
AMA28XXS Series
Specifications
Absolute Maximum Ratings
Input Voltage range
Recommended Operating Conditions
-0.5V to +50VDC (Continuous), Input Voltage range
+16V to +40VDC
80V (100ms)
Output Power
Less than or equal to 5W
Soldering temperature
300°C for 10 seconds
Operating case temperature
-55°C to +125°C
Storage case temperature
-65°C to +135°C
Static Characteristics
-55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified.
Group A
Subgroups
Parameter
Test Conditions
Input Voltage
Output Power
Nom
Max
Unit
16
28
40
V
5.00
12.00
15.00
5.05
12.12
15.15
Iout = 0
Output Voltage
Output Current
Min
AMA2805S
AMA2812S
AMA2815S
1
1
1
4.95
11.88
14.85
AMA2805S
AMA2812S
AMA2815S
2, 3
2, 3
2, 3
4.90
11.76
14.70
AMA2805S
AMA2812S
AMA2815S
1, 2, 3
1, 2, 3
1, 2, 3
All Models
1, 2, 3
V
1
5.10
12.24
15.30
Vin = 16, 28, 40 Volts
1
Vin = 28 Volts, 100% load
Output Ripple Voltage
2
AMA2805S
AMA2812S
AMA2815S
1, 2, 3
1, 2, 3
1, 2, 3
Line
1, 2, 3
Load
1, 2, 3
Output voltage
Regulation
Vin = 16, 28, 40 Volts
100% Load
BW = 20 Hz to 2.0 MHz
Vin = 16, 28, 40 Volts
Iout = 0, 50%, and 100% load
1000
417
333
mA
5.0
W
200
200
200
mVPP
±10
±50
±10
±50
mV
For Notes to Specifications, refer to page 4
2
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AMA28XXS Series
Static Characteristics
(Continued) -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified.
Parameter
Group A
Subgroups
Input Current
No Load
1, 2, 3
Inhibit
1, 2, 3
Input Ripple Current
Min
Vin = 28V,
Iout = 0, Inhibit (pin 5) = open
Nom
Max
20
50
8.0
12
Unit
mA
2
1, 2, 3
Efficiency
Inhibit (pin 5) shorted to input
return (pin 7)
Vin = 16, 28, 40 Volts, 100%
load, BW = 20 Hz to 2 MHz
100
mAPP
100% load
AMA2805S
AMA2812S
AMA2815S
1, 3
1, 3
1, 3
66
71
71
AMA2805S
AMA2812S
AMA2815S
2
2
2
66
68
68
Isolation
Capacitive Load
Test Conditions
3, 4
1
Input to output or any pin to case
(except pin 8) at 500Vdc
4
No effect on dc performance
100
AMA2805S
AMA2812S
AMA2815S
Short Circuit Power Dissipation
1, 2, 3
MTBF
Weight
MIL-HDBK-217F, SF @Tc=35°C
%
MΩ
500
100
100
µF
4.0
W
700
Khrs
32
g
For Notes to Specifications, refer to page 4
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AMA28XXS Series
Dynamic Characteristics
-55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified.
Group A
Subgroups
Parameter
4
Test Conditions
4, 5, 6
0% load to 100% load
Switching Frequency
4, 5, 6
100% load
Output Response To Step
8
Transient Load Changes
4, 5, 6
Short Circuit Recovery
4, 5, 6
Recovery Time, Step Transient
5, 6
Load Changes
AMA2805S
AMA2812S
AMA2815S
AMA2805S
AMA2812S
AMA2815S
Output Response Transient Step
4, 7
Line Changes
AMA2805S
AMA2812S
AMA2815S
Recovery Time Transient Step
4, 6, 7
Line Changes
Turn On Overshoot
8
AMA2805S
Turn On Overshoot
4, 5, 6
4, 5, 6
4, 5, 6
500
Ù 100%
Load step 0% Ù 50%
Load step 50%
Load step 50%
Load step 0%
4, 5, 6
4, 5, 6
4, 5, 6
Input step 16
100% load
4, 5, 6
Input step 16
100% load
550
Max
Unit
25
ms
600
KHz
-450
+450
-750
+750
Ù 100%
300
100
100
Ù 50%
Ù 40Vdc,
Nom
2000
2000
2000
-550
-750
-750
mVpk
µs
+550
+750
+750
mVpk
1200
µs
100% load
600
750
mVpk
4, 5, 6
0 to 100% load
600
mVpk
4, 5, 6
0% load to 100% load
25
ms
4, 5
6
Ù 40Vdc,
8
AMA2812S
AMA2815S
Turn On Delay
4, 5, 6
4, 5, 6
4, 5, 6
Min
8
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
3. 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.
4. Parameter shall be tested as part of design characterization and after design or process changes. Parameters shall be guaranteed
to the limit specified in Electrical Specifications.
5. Load step transition time between 2 and 10 microseconds.
6. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1 % of VOUT at 50 percent load.
7. Input step transition time between 2 and 10 microseconds.
8. 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 while power is applied to the input.
4
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AMA28XXS Series
Block Diagram
1
6
+Input
+Output
Output
Return
2
Housekeeping
Supply
Error
Amplifier
Input
Return
Case
7
8
Enable
CS
Controller
5
Application Information
Inhibit Function (Enable)
EMI Filter
Connecting the enable input (Pin 5) to input common
(Pin 7) will cause the converter to shut down. It is
recommended that the enable pin be driven by an
open collector device capable of sinking at least 400
µA of current. The open circuit voltage of the inhibit
input is 10 +1.0 VDC.
An optional EMI filter is available (AFH461) that will
reduce the input ripple current to levels below the
limits imposed by MIL-STD-461 CE03.
Radiation Specification
Parameter
Total Ionizing Dose
Condition
MIL-STD-883, Method 1019.4
Min
Typ
Max
Unit
25
—
—
KRads
(Si)
60
—
—
Operating bias applied during exposure
Heavy Ion
(Single event effects)
BNL Dual Van de Graf Generator
2
MeV•cm
/mg
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
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5
AMA28XXS Series
Mechanical Outline
0.800
0.17
0.33
0.400
0.170
0.200
0.25 Typ
0.26 Typ
Ø 0.140
x3
5
3
2
1
0.880
1.130
6
7
8
0.125
1.130
0.030 Dia
1.380
1.63
Tolerance unless otherwise specified:
x.xx ±0.010
x.xxx ±0.005
Pin Designation
6
Pin #
Designation
1
+ Output
2
Output Return
3
NC
4
Blank
5
Enable
6
+ Input
7
Input Return
8
Case Ground
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AMA28XXS Series
Device Screening
Requirement
MIL-STD-883 Method
Temperature Range
d
No Suffix
CH
d
EM
-55°C to +125°C
-55°C to +125°C
Element Evaluation
MIL-PRF-38534
Class H
Class H
-55°C to +85°C
N/A
Non-Destructive Bond Pull
2023
N/A
N/A
N/A
Internal Visual
2017
Yes
Yes
c
Temperature Cycle
1010
Cond C
Cond C
Cond C
Constant Acceleration
2001, Y1 Axis
3000 Gs
3000 Gs
3000 Gs
PIND
2020
Cond A
Cond A
N/A
320 hrs @ 125°C
320 hrs @ 125°C
48 hrs @ 125°C
Burn-In
1015
( 2 x 160hrs )
( 2 x 160hrs )
Final Electrical
MIL-PRF-38534
-55°C, +25°C,
-55°C, +25°C,
-55°C, +25°C,
( Group A )
& Specification
+125°C
+125°C
+85°C
PDA
MIL-PRF-38534
2%
2%
N/A
Seal, Fine and Gross
1014
Cond A, C
Cond A, C
Cond A
Radiographic
2012
Yes
Yes
N/A
External Visual
2009
Yes
Yes
c
Notes:
 Best commercial practice.
‚ Device with ‘/CH’ suffix is a DSCC class H compliant without radiation performance. No suffix is a radiation rated
device but not available as a DSCC qualified SMD per MIL-PRF-38534.
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
IR Standard
Drawing Number
Part Number
Part Numbering
AMA 28 05 S /EM
Model
Screening Level
No Suffix, CH, EM
5962-04247
AMA2805S
Input Voltage
5962-04248
5962-04249
AMA2812S
AMA2815S
28 = 28V
Output Voltage
05 = 5V, 12 = 12V,
15 = 15V
(Please refer to Screening Table)
Output
S = Single
D = Dual
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. 07/2009
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