TPS826716SIPR - TEXAS INSTRUMENTS

07/07/11

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HYBRID - HIGH RELIABILITY

DC-DC CONVERTER

ATR28XXS SERIES

Description

n16V to 40VDC Input Range (28VDC Nominal)

n3.3V, 5V, 12V and 15V Outputs Available

nIndefinite Short Circuit and Overload

Protection

nUp to 35W/in3 Power Density

n30W Output Power Models

nFast Loop Response for Superior Transient

Characteristics

nOperating Temperature Range from

-55°C to +125°C

nPopular Industry Standard Pin-Out

nResistance Seam Welded Case for Superior

Long Term Hermeticity

nCeramic Feed-thru Pins

nExternal Synchronization

nEfficiencies up to 84%

nShutdown from External Signal

nMilitary Screening

n Standard Microcircuit Drawings Available

Features

ATR

28V Input, Single Output

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 with

screening options. Refer to Part Number section. These

devices can be provided in a standard plug-in package

for PC mounting or in a flanged package for more

severe environments.

Extensive computer simulation using complex modeling

enables rapid design modification to be provided.

Contact IR San Jose with specific requirements.

The ATR28XXS 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-704D input requirements, these devices

have nominal 28VDC inputs with 3.3V, 5V, 12V and

15V single outputs to satisfy a wide range of requirements.

The circuit design incorporates a pulse width modulated

single forward topology operating in the feed-forward

mode at a nominal switching frequency of 550KHz.

Input to output isolation is achieved through the use of

transformers in the forward and feedback circuits.

Manufactured in a facility fully qualified to MIL-PRF-

38534, these converters are fabricated utilizingDLA

Land and Maritime qualified processes. For available

screening options, refer to device screening table in

the data sheet. Variations in electrical, mechanical and

screening can be accommodated.

PD-94549C

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ATR28XXS Series

Specifications ATR2803R3S

Table I. Electrical performance Characteristics

For Notes to Specifications, refer to page 3

Input voltage -0.5V to +50VDC

Soldering temperature 300°C for 10 seconds

Operating case temperature -55°C to +125°C

Storage case temperature -65°C to +135°C

Absolute Maximum Ratings

Limits Test Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Output voltage VOUT I

OUT = 0 1 01 3.25 3.35 V

2,3 3.20 3.40

Output current 1 IOUT V

IN = 16, 28, and 40 VDC 1,2,3 01 7500 mA

Output ripple voltage 2 VRIP V

IN = 16, 28, and 40 VDC

B.W. = 20Hz to 2 MHz

1,2,3 01 60 mV p-p

Line regulation 3 VRLINE V

IN = 16, 28, and 40 VDC

IOUT = 0, 3000, and 6000mA

1 01

±20 mV

2,3 ±30

Load regulation 3 VRLOAD V

IN = 16,28, and 40 VDC

IOUT = 0, 3000, and 6000mA

1,2,3 01 ±50 mV

Input current IIN I

OUT = 0, inhibit (pin 2)

Tied to input return (pin 10)

1,2,3 01 18 mA

OUT = 0, inhibit (pin 2) = open 50

Input ripple current2 IRI P I

OUT =6000mA

B.W. = 20Hz to 2 MHz

1,2,3 01 50 mA p-p

Efficiency EFF I

OUT =6000mA 1 01 74 %

2,3 70

Isolation ISO Input to output or any pin

to case (except pin 8) at

500 VDC, TC =+25°C

1 01 100 MΩ

Capacitive load 4, 5 CL No effect on dc performance

TC =+25°C

4 01 500

µF

Power dissipation

load fault

PD Overload, TC = +25°C 6 1

Short Circuit 1,2,3 9.0

Switching frequency FS I

OUT = 7500mA 4,5,6 01 500 600 KHz

Sync frequency range FSYNC I

OUT = 7500mA 4,5,6 01 500 700 KHz

Output response to step VOTLOAD Load step 50% to/from 100% 4,5,6 01 -500 +500 mV pk

transient load changes 7 Load step 50% to/from 100% 4,5,6 -500 +500

Recovery time step TTLOAD Load step 50% to/from 100% 4 100

transient load changes 7, 8 5,6 01 200

µs

4 100

Load step 50% to/from 100%

5,6 200

Output response to transient

step line changes 5, 9

VOTLINE Input step 16V to/from

40VDC, IOUT = 7500mA

4,5,6 01 ±500 mV pk

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ATR28XXS Series

Table I. Electrical performance Characteristics - continued ATR2803R3S

Notes to Specifications

1 Parameter guaranteed by line and load regulation tests.

2 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.

3 Output voltage measured at load with remote sense leads connected across load.

4 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.

5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be

guaranteed to the limits specified in table I.

6 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.

7 Load step transition time between 2.0µs and 10µs.

8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load.

9 Input step transition time between 2.0µs and 10µs.

10 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 2) while power is applied to the input.

Limits

Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Recovery time transient step

line changes 5, 8, 9

TTLINE Input step 16V to/from

40VDC, IOUT = 7500mA

4,5,6 01 10 ms

Turn on overshoot VTonOS I

OUT = 10% to 100% of Load 4,5,6 01 350 mV pk

Turn on delay 10 TonD I

OUT =0 and 7500mA 4,5,6 01 25 ms

Load fault recovery 5, 10 TrLF 4,5,6 01 25 ms

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ATR28XXS Series

Specifications

For Notes to Specifications, refer to page 5

Table II. Electrical performance Characteristics

ATR2805S

Input voltage -0.5V to +50VDC

Soldering temperature 300°C for 10 seconds

Operating case temperature -55°C to +125°C

Storage case temperature -65°C to +135°C

Absolute Maximum Ratings

Limits Test Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Output voltage VOUT I

OUT = 0 1 01 4.95 5.05 V

2,3 4.90 5.10

Output current 1 IOUT V

IN = 16, 28, and 40 VDC 1,2,3 01 6000 mA

Output ripple voltage 2 VRIP V

IN = 16, 28, and 40 VDC

B.W. = 20Hz to 2 MHz

1,2,3 01 60 mV p-p

Line regulation 3 VRLINE V

IN = 16, 28, and 40 VDC

IOUT = 0, 3000, and 6000mA

1 01 ±20 mV

2,3 ±30

Load regulation 3 VRLOAD V

IN = 16,28, and 40 VDC

IOUT = 0, 3000, and 6000mA

1,2,3 01 ±50 mV

Input current IIN I

OUT = 0, inhibit (pin 2)

Tied to input return (pin 10)

1,2,3 01 18 mA

OUT = 0, inhibit (pin 2) = open 50

Input ripple current2 IRIP I

OUT =6000mA

B.W. = 20Hz to 2 MHz

1,2,3 01 50 mA p-p

Efficiency EFF I

OUT =6000mA 1 01 76 %

2,3 72

Isolation ISO Input to output or any pin

to case (except pin 8) at

500 VDC, TC =+25°C

1 01 100 MΩ

Capacitive load 4, 5 CL No effect on dc performance

TC =+25°C

4 01 500

µF

Power dissipation

load fault

PD Overload, TC = +25°C 6 1

Short Circuit 1,2,3 9.0

Switching frequency FS I

OUT = 6000mA 4,5,6 01 500 600 KHz

Sync frequency range FSYNC I

OUT = 6000mA 4,5,6 01 500 700 KHz

Output response to step VOTLOAD 3000mA to/from 6000mA 4,5,6 01 -500 +500 mV pk

transient load changes 7 500mA to/from 3000mA 4,5,6 -500 +500

Recovery time step TTLOAD 3000mA to/from 6000mA 4 100

transient load changes 7, 8 5,6 01 200

µs

500mA to/from 3000mA 4 100

5,6 200

Output response to transient

step line changes 5, 9

VOTLINE Input step 16V to/from

40VDC, IOUT = 6000mA

4,5,6 01 ±500 mV pk

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ATR28XXS Series

Notes to Specifications

Table II. Electrical performance Characteristics - continued ATR2805S

1 Parameter guaranteed by line and load regulation tests.

2 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.

3 Output voltage measured at load with remote sense leads connected across load.

4 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.

5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be

guaranteed to the limits specified in table II.

6 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.

7 Load step transition time between 2.0µs and 10µs.

8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load.

9 Input step transition time between 2.0µs and 10µs.

10 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 2) while power is applied to the input.

Limits

Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Recovery time transient step

line changes 5, 8, 9

TTLINE Input step 16V to/from

40VDC, IOUT = 6000mA

4,5,6 01 10 ms

Turn on overshoot VTonOS I

OUT =0 and 6000mA 4,5,6 01 500 mV pk

Turn on delay 10 TonD I

OUT =0 and 6000mA 4,5,6 01 25 ms

Load fault recovery 5, 10 TrLF 4,5,6 01 25 ms

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ATR28XXS Series

Specifications

Table III. Electrical performance Characteristics

ATR2812S

For Notes to Specifications, refer to page 7

Input voltage -0.5V to +50VDC

Soldering temperature 300°C for 10 seconds

Operating case temperature -55°C to +125°C

Storage case temperature -65°C to +135°C

Absolute Maximum Ratings

Limits Test Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Output voltage VOUT I

OUT = 0 1 01 11.88 12.12 V

2,3 11.70 12.30

Output current 1 IOUT V

IN = 16, 28, and 40 VDC 1,2,3 01 2500 mA

Output ripple voltage 2 VRIP V

IN = 16, 28, and 40 VDC

B.W. = 20Hz to 2 MHz

1,2,3 01 60 mVp-p

Line regulation 3 VRLINE V

IN = 16, 28, and 40 VDC

IOUT = 0, 1250, and 2500mA

±30

2,3 ±60

Load regulation 3 VRLOAD V

IN = 16,28, and 40 VDC

IOUT = 0, 1250, and 2500mA

±60

2,3

±120

Input current IIN I

OUT = 0, inhibit (pin 2)

Tied to input return (pin 10)

1,2,3

OUT = 0, inhibit (pin 2) = open 1 50

2,3 75

Input ripple current 2 IRIP I

OUT =2500mA

B.W. = 20Hz to 2 MHz

1,2,3 01 50 mAp-p

Efficiency EFF I

OUT=2500mA 1 01 80 %

2,3 75

Isolation ISO Input to output or any pin

To case (except pin 8) at

500 VDC, TC =+25°C

1 01 100 MΩ

Capacitive load 4, 5 CL No effect on dc performance

TC =+25°C

4 01 500 µF

Power dissipation

load fault

PD Overload, TC = +25°C 6 1

Short Circuit 1,2,3 9.0

Switching frequency FS I

OUT = 2500mA 4,5,6 01 500 600 KHz

Sync frequency range FSYNC I

OUT = 2500mA 4,5,6 01 500 700 KHz

Output response to step VOTLOAD 1250mA to/from 2500mA 4,5,6 01 -800 +800 mV pk

transient load changes 7 200mA to/from 1250mA 4,5,6 -1000 +1000

Recovery time step TTLOAD 1250mA to/from 2500mA 4 100

transient load changes 7, 8 5,6 01 200 µs

200mA to/from 1250mA 4 100

5,6 200

Output response to

transient step line

changes 5, 9

VOTLINE Input step 16V to/from

40VDC, IOUT = 2500mA

4,5,6 01 ±1200 mV pk

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ATR28XXS Series

Table III. Electrical performance Characteristics - continued ATR2812S

Notes to Specifications

1 Parameter guaranteed by line and load regulation tests.

2 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.

3 Output voltage measured at load with remote sense leads connected across load.

4 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.

5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be

guaranteed to the limits specified in table III.

6 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.

7 Load step transition time between 2.0µs and 10µs.

8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load.

9 Input step transition time between 2.0µs and 10µs.

10 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 2) while power is applied to the input.

Limits Test Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Recovery time transient

step line changes 5, 8, 9

TTLINE Input step 16V to/from

40VDC, IOUT = 2500mA

4,5,6 01 10 ms

Turn on overshoot VTonOS I

OUT =0 and 2500mA 4,5,6 01 800 mV pk

Turn on delay 10 TonD I

OUT =0 and 2500mA 4,5,6 01 25 ms

Load fault recovery 5, 10 TrLF 4,5,6 01 25 ms

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ATR28XXS Series

Specifications

Table IV. Electrical performance Characteristics

ATR2815S

For Notes to Specifications, refer to page 9

Input voltage -0.5V to +50VDC

Soldering temperature 300°C for 10 seconds

Operating case temperature -55°C to +125°C

Storage case temperature -65°C to +135°C

Absolute Maximum Ratings

Limits Test Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Output voltage VOUT I

OUT = 0 1 01 14.85 15.15 V

2,3 14.60 15.40

Output current 1 IOUT V

IN = 16, 28, and 40 VDC

each output.

1,2,3 01 2000 mA

Output ripple voltage 3 VRIP V

IN = 16, 28, and 40 VDC

B.W. = 20Hz to 2 MHz

1,2,3 01 ±75 mVp-p

Line regulation 3 VRLINE V

IN = 16, 28, and 40 VDC

IOUT = 0, 1250, and 2500mA

±35

2,3 ±75

Load regulation 3 VRLOAD V

IN = 16,28, and 40 VDC

IOUT = 0, 1250, and 2500mA

±75

2,3 ±150

Input current IIN I

OUT = 0, inhibit (pin 2)

Tied to input return (pin 10)

1,2,3

OUT = 0, 1 75

Inhibit (pin 2) = open 2,3 100

Input ripple current 2 IRIP I

OUT = 2500mA

B.W. = 20Hz to 2 MHz

1,2,3 01 50 mAp-p

Efficiency 4 EFF I

OUT = 2500mA 1 01 79 %

2,3 75

Isolation ISO Input to output or any pin

to case (except pin 7) at

500 VDC, TC =+25°C

1 01 100 MΩ

Capacitive load 4, 5 CL No effect on dc performance,

TC =+25°C. Total for both

outputs

4 01 500

µF

Power dissipation

load fault

PD Overload, TC = +25°C 6 1

Short Circuit 1,2,3 9.0

Switching frequency 4 FS I

OUT = 2500mA 4,5,6 01 500 600 KHz

Sync frequency range FSYNC I

OUT = 2500mA 4,5,6 01 500 700 KHz

Output response to step VOTLOAD 1000mA to/from 2000mA 4,5,6 01 -1000 +1000 mVp-k

transient load changes 7 167mA to/from 1000mA 4,5,6 -1000 +1000

Recovery time step TTLOAD 1000mA to/from 2000mA 4 100

transient load changes 7, 8 5,6 01 200 µs

167mA to/from 1000mA 4 100

5,6 200

Output response to

transient step line

changes 5, 9

VOTLINE Input step 16V to/from

40VDC, IOUT = 2000mA

4,5,6 01 ±1500 mVpk

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ATR28XXS Series

Table IV. Electrical performance Characteristics - continued ATR2815S

Notes to Specifications

1 Parameter guaranteed by line and load regulation tests.

2 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.

3 Output voltage measured at load with remote sense leads connected across load.

4 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.

5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be

guaranteed to the limits specified in table IV.

6 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 condition of maximum power dissipation.

7 Load step transition time between 2.0µs and 10µs.

8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load.

9 Input step transition time between 2.0µs and 10µs.

10 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 (pin2) while power is applied to the input.

Limits Test Symbol Conditions

-55°C ≤ TC ≤ +125°C

VIN = 28VDC ±5%, CL = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min Max

Units

Recovery time transient

step line changes 5, 8, 9

TTLINE Input step 16V to/from

40VDC, IOUT = 2500mA

4,5,6 01 10 ms

Turn on overshoot VTonOS I

OUT =0 and 2000mA 4,5,6 01 1000 mVpk

Turn on delay 10 TonD I

OUT =0 and 2000mA 4,5,6 01 25 ms

Load fault recovery 5, 10 TrLF 4,5,6 01 25 ms

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ATR28XXS Series

Connecting the inhibit input (Pin 2) 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.

Assuming that there is no forced air flow, the package

temperature rise above ambient (∆T) may be calculated

using the following expression:

where A = the effective surface area in square inches

(Including heat sink if used),Pd

= power dissipation in watts.

The total surface area of the ATR package is 7.34 square

inches. If a worse case full load efficiency of 76% is

assumed, then the case temperature rise of an ATR2805S

can be calculated as follows:

Hence, if TAMBIENT = +25°C, the DC/DC converter case

temperature will be approximately 159°C if no heat sink

or air flow is provided.

Block Diagram

Application Information

Inhibit Function

Thermal Management

To calculate the heat sink area required to maintain a

specific case temperature rise, the above equation may

be manipulated as follows:

PKG

HEATSINK A

A−

⎥

⎦

⎤

⎢

⎣

⎡∆

−431

850

As an example, if a maximum case temperature rise of

50°C above ambient is required, then the required

effective heat sink area is:

EMI Filter

An Optional EMI filter (AFC461)is available that will reduce

the input ripple current to levels below the limits imposed by

MIL-STD-461B CEO3.

Whenever multiple DC/DC converters are utilized in a single

system, significant low frequency noise may be generated

due to slight difference in the switching frequencies of the

converters. 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. International Rectifier permits synchronization of

multiple ATR28XX converters to match switching frequency

of the converter to the frequency of the system clock, thus

eliminating this type of noise.

Device Synchronization

Eff

PP out 591

301

1.=

⎥

⎦

⎤

⎢

⎣

⎡−=

⎥

⎦

⎤

⎢

⎣

⎡−=

∆T = 80 A –0.7 P 0.85 (°C)

∆T = 80 (7.34)-0.7 (9.5)0.85 = 134°C

()

431

850 922347

5980

50 inAHEATSINK ..

.=−

⎥

⎦

⎤

⎢

⎣

⎡

−

Output Voltage Adjustment

The output voltage of the ATR2805S converter can be

adjusted upward by connecting an appropriate resistor value

between the Positive Output (Pin 5) and the Positive Sense

(Pin 6) as shown in Table 1 below.

Resistance Pin 5 to 6 (

) Output Voltage Increase (V)

109 0.1

240 0.2

400 0.3

600 0.4

857 0.5

1200 0.6

Table1 Output adjustment resistor values for ATR2805S

+Vout

Output

Return

Pulse Width

Modulator

Primary

Housekeeping

Supply

EMI

Filter

+Input

Inhibit

Input

Sync

Input

Return

Error

Amp &

Ref

+Sense

Sense

Return

Drive

Case

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ATR28XXS Series

Pin Designation

Mechanical Outlines

* If neither remote sense nor voltage trim is used, connect

Pin 3 to 4 and 5 to 6 or output volta

e will increase b

1.2V.

Pin # Designation

1 + Input

2 Inhibit Input

3 Sense Return*

4 Output Return

5 + Output

6 + Sense*

7NC

8 Case Ground

9Sync.

10 Input Return

Standard Microcircuit Drawing Equivalence Table

Standard Microcircuit Vendor Cage IR Standard

Drawing Number Code Part Number

5962-94624 52467 ATR2805S

5962-94625 52467 ATR2812S

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ATR28XXS Series

Part Numbering

Notes:

 Best commercial practice

 Sample tests at low and high temperatures

 -55°C to +105°C for AHE, ATO, ATW

Device Screening

Requirement MIL-STD-883 Method No Suffix ES

HB CH

Temperature Range -20°C to +85°C -55°C to +125°C

-55°C to +125°C -55°C to +125°C

Element Evaluation MIL-PRF-38534 N/A N/A N/A Class H

Non-Destructive

Bond Pull

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

PIND 2020 N/A N/A N/A N/A

Burn-In 1015 N/A 48 hrs@hi temp 160 hrs@125°C 160 hrs@125°C

Final Electrical MIL-PRF-38534 25°C 25°C

-55°C, +25°C, -55°C, +25°C,

( Group A ) & Specification +125°C +125°C

PDA MIL-PRF-38534 N/A N/A N/A 10%

Seal, Fine and Gross 1014 Cond A Cond A, C Cond A, C Cond A, C

Radiographic 2012 N/A N/A N/A N/A

External Visual 2009

Yes Yes Yes

N/A N/A2023 N/A N/A

ATR 28 15 S F /CH

Model

Input Voltage

Nominal

28 = 28V

Output Voltage

03R3 = 3.3V

05 = 5V

12 = 12V

15 = 15V

Output

S = Single

Package Style

F = Flange

Blank = Non-Flanged

Screening Level

(Please refer to Screening Table)

No Suffix, ES, HB, CH

WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105

IR SAN JOSE: 2520Junction Avenue, San Jose, California 95134, Tel: (408) 434-5000

Visit us at www.irf.com for sales contact information.

Data and specifications subject to change without notice. 07/2011