IRF ARH2805R2SEM Hybrid - high reliability radiation hardened dc-dc converter Datasheet

PD-95887B
ARH28XXS SERIES
28V Input, Single Output
HYBRID - HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTERS
Description
The ARH Series of DC-DC converters has been
designed specifically for use in the hostile environments
The high level of radiation tolerance inherent in the
ARH design is the result of extensive research, thorough
analysis and testing and of careful component
specification. Designed to supplement the triple output
configuration provided by the ART series, the ARH
circuit topology is the follow-on to the successful ART
design and incorporates many of the design features
characterizing that product line. Capable of uniform
high performance over long term exposures in radiation
intense environments, this series expands the standard
for distributed power systems demanding high
performance and reliability in the harsh environments.
The ARH converters are hermetically sealed in a
rugged, low profile package utilizing copper core input
and output pins to minimize resistive DC losses. Longterm hermeticity is assured through use of parallel seam
welded lid attachment along with rugged ceramic pinto-package seal. Axial orientation of the leads facilitates
preferred bulkhead mounting placing the converter on
the principal heat-dissipating surface.
Manufactured in a facility fully qualified to MIL-PRF38534, these converters are fabricated utilizing DLA
Land and Martiime qualified processes. For available
screening options, refer to device screening table in
the data sheet.
ARH
Features
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Total Dose > 100 krad (Si), 2:1 Margin
SEE Hardened to LET up to 83 MeV.cm2/mg
Derated per MIL-STD-975 & MIL-STD-1547
Output Power to 30 Watts
Regulates to No-Load
18 to 50 Volt Input Range
Input Undervoltage Lockout
Fully Characterized from -55°C to +125°C
Continuous Short Circuit Protection
12.8 W/in3 Output Power Density
True Hermetic Package
External Inhibit Port
Externally Synchronizable
Fault Tolerant Design
Available with Outputs from 2.5V to 15V
Overload Protection
Standard Microcircuit Drawings Available
Variations in electrical, mechanical and screening
specifications can be accommodated. Contact IR San
Jose for special requirements.
www.irf.com
1
06/14/13
ARH28XXS Series
28V Input, Single Output
Specifications
Absolute Maximum Ratings
Recommended Operating Conditions
Input Voltage range
-0.5V to +80VDC
Input Voltage range
Soldering temperature
300°C for 10 seconds
Output Power
Storage case temperature
-65°C to +135°C
Electrical Performance
Parameter
+18V to +50V for full derating to MIL-STD-1547
0 to 30W
Operating case temperature
-55°C to +125°C
-55°C to +85°C for full derating to MIL-STD-975
-55°C < TCASE < +125°C, VIN = 28V±5%, CL = 0 unless otherwise specified.
Symbol
Test Conditions
Output voltage accuracy
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
VOUT
Output power
POUT
18 Vdc < VIN < 50Vdc
IOUT
18 Vdc < VIN < 50Vdc
Output current
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
+18V to +60VDC
POUT = 30 W, TC = +25°C
Limit
MIN
Limit
MAX
2.487
3.283
4.975
5.174
11.940
14.925
2.513
3.317
5.025
5.226
12.060
15.075
0
30
0
0
0
0
0
0
12000
9090
6000
5770
2500
2000
Units
Vdc
W
mAdc
Line regulation Note 3
VRLINE
18 Vdc < VIN < 50Vdc, 0 < IOUT < IMAX
-1.0
+1.0
%
Load regulation Note 4
VRLOAD
18 Vdc < VIN < 50Vdc, 0 < IOUT < IMAX
-2.0
+2.0
%
All conditions of Line, Load, Temperature,
Radiation and End of Life
-4.0
+4.0
%
IOUT = 0 (Pin 3 open)
—
100
inhibited (Pin 3 shorted to pin 2)
—
8.0
Total regulation
VR
No-load input current
IIN
Output ripple and noise voltage
Note 5
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
VRIP
mA
18 Vdc < VIN < 50Vdc, IOUT = IMAX
30
30
40
40
50
50
mVp.p
For Notes to Specifications, refer to page 4
2
www.irf.com
ARH28XXS Series
28V Input, Single Output
Electrical Performance
Parameter
Input ripple current Note 5
-55°C < TCASE < +125°C, VIN = 28V±5%, CL = 0 unless otherwise specified. (Continued)
Symbol
Test Conditions
IRIP
18 Vdc < VIN < 50Vdc, IOUT = IMAX
Switching frequency
FS
Synchronization input open. (pin 6)
Efficiency
Eff
IOUT = IMAX, TC = +25°C
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
Enable Input
open circuit voltage
drive current (sink)
voltage range
225
Synchronization Output
pulse high level
Signal compatible with Synchronization Input
PD
Output response to step load
changes
Note 8
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
VTLD
Recovery time from step load
changes
Notes 8, 9
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
TTLD
Output response to step line
changes
Notes 7, 10
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
VTLN
Units
100
mAp.p
275
KHz
%
5.0
100
50
V
µA
V
225
3.5
-0.5
40
20
310
10
0.25
80
KHz
V
V
V/µs
%
3.7
4.3
V
10
12
9.5
W
-0.5
External clock signal on Sync. input (pin 4)
Limit
MAX
72
75
76
76
80
80
3.0
Synchronization Input
frequency range
pulse high level
pulse low level
pulse rise time
pulse duty cycle
Power dissipation, Short circuit
ARH2802R5S
ARH2803R3S & ARH2805S
All Others
Limit
MIN
Short circuit on output
50% Load ⇔ 100% load
-200
-200
-200
-200
-300
-350
200
200
200
200
300
350
mVPK
50% Load ⇔ 100% load
200
200
200
200
200
200
µs
IOUT = IMAX, VIN = 18 V to/from 50 V
-180
-180
-250
-250
-450
-900
180
180
250
250
450
900
mVPK
For Notes to Specifications, refer to page 4
www.irf.com
3
ARH28XXS Series
28V Input, Single Output
Electrical Performance
-55°C < TCASE < +125°C, VIN = 28V±5%, CL = 0 unless otherwise specified. (Continued)
Parameter
Recovery time from step line
changes
Notes 7, 9, 10
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
Symbol
TTLN
Test Conditions
Units
600
600
700
700
320
400
VOS
IOUT = 10% or 100% of IMAX
Turn on delay Note 11
TDLY
IOUT = 10% or 100% of IMAX
Capacitive load Notes 6, 7
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
CL
No effect on DC performance
Isolation
ISO
Overload Trip Current
Limit
MAX
IOUT = IMAX, VIN = 18 V to/from 50 V
Turn on overshoot
Recovery from a short circuit
Limit
MIN
Vr
Ovld
500VDC Input to Output or any pin to case
2.0
5.0
%Vout
20
ms
1200
1200
1000
1000
180
120
100
Output shorted, then open into max rated load
current. Vin = 28 V
Maximum current at specified output voltage
µs
105
µF
MΩ
10
% of
Rated
Output
Voltage
135
% of
Max
Output
Current
Notes to Specifications Tables
1.
Operation outside absolute maximum/minimum limits may cause permanent damage to the device. Extended operation at the
limits may permanently degrade performance and affect reliability.
2.
Device performance specified in Electrical Performance table is guaranteed when operated within recommended limits. Operation
outside recommended limits is not specified.
3.
Parameter measured from 28V to 18V or to 50V while load remains fixed at 10%, 50% and 100% of Imax.
4.
Parameter measured from 50% to 10% or 100% of maximum load conditions while line remains fixed at 18, 28 or 50 volts.
5.
Guaranteed for a bandwidth of DC to 20 MHz. Tested using a 20 KHz to 2.0 MHz bandwidth.
6.
A capacitive load of any value from 0 to the specified maximum is permitted without compromise to DC performance. A
capacitive load in excess of the maximum limit may interfere with the proper operation of the converter’s short circuit protection,
causing erratic behavior during turn on.
7.
Parameter is tested as part of design characterization or after design or process changes. Thereafter, parameters shall be
guaranteed to the limits specified in the table.
8.
Load transient rate of change, di/dt ≤ 2.0 A/µs.
9.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of its steady state value.
10.
Line transient rate of change, dv/dt ≤ 50 V/µs.
11. Turn on delay time is for either a step application of input power or a logical low to high transition on the enable pin (pin 3) while
power is present at the input.
4
www.irf.com
ARH28XXS Series
28V Input, Single Output
Group A Tests
VIN = 28V, CL = 0 unless otherwise specified.
Test
Symbol
Output voltage accuracy
VOUT
Test Conditions
IOUT = IMAX , Tc = 25°C
Group A
Subgroups
Output power Note 1
POUT
VIN = 18 V, 28V, 50 V
1, 2, 3
Output current Note 1
IOUT
VIN = 18 V, 28V, 50 V
1, 2, 3
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
VR
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
No Load Input Current
IIN
Output ripple Note 2
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
VRIP
IOUT = 10%, 50%, 100% of IMAX
VIN = 18 V, 28V, 50 V
Limit
MAX
2.487
3.283
4.975
5.174
11.940
14.925
2.513
3.317
5.025
5.226
12.060
15.075
0
30
0
0
0
0
0
0
12000
9090
6000
5770
2500
2000
2.425
3.201
4.850
5.044
11.640
14.550
2.575
3.399
5.150
5.356
12.360
15.450
1, 2, 3
IOUT = 0, Pin 3 open
1, 2, 3
100
Pin 3 shorted to pin 2 (disabled)
1, 2, 3
8.0
VIN = 18 V, 28V, 50 V
IOUT = IMAX
1, 2, 3
30
30
40
40
50
50
Switching frequency
FS
Synchronization pin (pin 6) open
4, 5, 6
Input ripple Note 2
IRIP
VIN = 18 V, 28V, 50 V
IOUT = IMAX
1, 2, 3
Recovery from a short
circuit
Vr
Output shorted, then open into max rated
load current. Vin = 28 V
Overload Trip Current
Ovld
Maximum current at specified output
voltage
Units
1
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
Output regulation Note 4
Limit
MIN
1, 2, 3
225
105
V
W
mA
V
mA
mVP-P
275
KHz
100
mAP-P
5.0
% of Rated
Output
Voltage
135
% of Max
Output
Current
For Notes to Group A Tests, refer to page 6
www.irf.com
5
ARH28XXS Series
28V Input, Single Output
Group A Tests
VIN = 28V, CL = 0 unless otherwise specified. (continued)
Group A
Subgroups
Limit
MIN
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
1
72
75
76
76
80
80
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
2, 3
68
68
72
72
78
78
Test
Efficiency
Power dissipation,
Short circuit
ARH2802R5S
Symbol
Eff
PD
Test Conditions
Recovery from step load
changes Notes 5, 6
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
Units
IOUT = IMAX
Short circuit across output
%
1, 2, 3
10
12
ARH2803R3S & ARH2805
All Others
Output response to step
load changes Note 5
ARH2802R5S
ARH2803R3S
ARH2805S
ARH2805R2S
ARH2812S
ARH2815S
Limit
MAX
W
9.5
VTL
TTL
50% Load to/from 100% load
4, 5, 6
-200
-200
-200
-200
-300
-350
50% Load to/from 100% load
200
200
200
200
300
350
mVPK
4, 5, 6
200
200
200
200
200
200
Turn on overshoot
VOS
IOUT = 10% and 100%
4, 5, 6
Turn on delay Note 7
TDLY
IOUT = minimum and full rated
4, 5, 6
2.0
Isolation
ISO
500VDC Input to output or any pin to
case (except pin 12)
1
100
µs
5.0
%Vout
20
ms
MΩ
Notes to Specifications Tables
1.
Paramete verified during dynamic load regulation tests.
2.
Guranteed for DC to 20 MHz bandwidth. Test conducted using a 20 KHz to 2.0MHz bandwidth.
3.
Deleted .
4.
Output is measured for all combinations of line and load. Only the minimum and meximum readings for the ouput are recorded.
5.
Load step transition time is 10µs.
6.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of its steady state value.
7.
Turn on delay time is tested by application of a logical low on high transition on teh enable pin (pin 3) with power present at the
input.
8.
Subgroups 1 and 4 are performed at +25°C, subgroups 2 and 5 at +85°C and subgroups 3 and 6 at -55°C.
6
www.irf.com
ARH28XXS Series
28V Input, Single Output
Figure I. Block Diagram
EMI
Filter
1
+Input
11 12
+Vout
Under-Voltage
Detector
3
13 14
Output
Return
Level
Translator
& Buffer
Primary Bias
& Reference
Enable
Overload
& Short
Circuit
10
+Sense
9
-Sense
+
4
Sync In
Pulse Width
Modulator
Error
Amp
-
Sample
& Hold
5
Sync Out
Input
Return
2
Circuit Operation and Application Information
The ARH28XXS series of converters have been designed
using a single ended forward switched mode converter
topology. (Refer to Figure I.) Single ended topologies enjoy
certain advantages in radiation hardened designs in that
they eliminate the possibility of simultaneous turn on of
both switching elements during a radiation induced upset.
In addition, single ended topologies are not subject to
transformer saturation problems often associated with
double ended implementations.
The design incorporates a two-stage LC input filter to
attenuate input ripple current. A low overhead linear bias
regulator provides both a bias voltage for the converter
primary control logic and a stable, well-regulated reference
for the error amplifier. Output control is realized using a
wide band discrete pulse width modulator control circuit
incorporating a unique non-linear ramp generator circuit.
This circuit helps stabilize loop gain over variations in line
voltage for superior output transient response. Nominal
conversion frequency has been selected as 250 KHz to
maximize efficiency and minimize magnetic element size.
Output voltages are sensed and fed back to the controller
using a patented magnetic feedback circuit. This circuit is
designed to be relatively insensitive to variations in
temperature, aging, radiation and manufacturing tolerances
making it particularly well suited to radiation hardened
designs. The control logic has been designed to use only
radiation tolerant components, and current paths include
series resistances to limit photocurrents.
www.irf.com
Other key circuit design features include output short circuit
and overload protection, input undervoltage lockout and
an external synchronization input port, permitting operation
at an externally set clock rate. Alternately, a synchronization
output is provided to lock frequencies with another
converter when using more than one converter in a system.
Thermal Considerations
The ARH series of converters is capable of providing
relatively high output power from a package of modest
volume. The power density exhibited by these devices is
obtained by combining high circuit efficiency with effective
methods of heat removal from the die junctions. Good
design practices have effectively addressed this
requirement inside the device. However when operating
at maximum loads, heat generated at the die junctions
depends upon minimally restricted thermal conduction from
the base plate for that heat to be carried away. To maintain
case temperature at or below the specified maximum of
125°C, this heat can be transferred by attachment of the
ARH28XXS to an appropriate heat dissipater held in intimate
contact with the converter base-plate.
Effectiveness of this heat transfer is dependent on the
intimacy of the baseplate to heatsink interface. It is therefore
suggested that a heat-transferring medium possessing
good thermal conductivity be inserted between the
baseplate and heatsink. A material utilized at the factory
during testing and burn-in processes is sold under the
7
ARH28XXS Series
28V Input, Single Output
trade name of Sil-Pad® 400 1. This particular product is an
insulator but electrically conductive versions are also
available. Use of these materials assures optimum surface
contact with the heat dissipater by compensating for minor
surface variations. While other available types of heat
conducting materials and thermal compounds provide
similar effectiveness, these alternatives are often less
convenient and are sometimes messy to use.
A conservative aid to estimating the total heat sink surface
area (A HEAT SINK) required to set the maximum case
temperature rise (DT) above ambient temperature is given
by the following expression:
A HEAT SINK
where
⎧ ∆T ⎫
≈⎨
0.85 ⎬
⎩ 80 P ⎭
−1. 43
− 5.94
∆T = Case temperature rise above ambient
Inhibiting Converter Output
As an alternative to application and removal of the DC
voltage at the input, the user can control the converter
output by providing an input referenced, TTL compatible,
logic signal to the enable pin 3. This port is internally pulled
“high” so that when not used, an open connection on the
pin permits normal converter operation. When inhibited
outputs are desired, a logical “low” on this port will shut the
converter down. An open collector device capable of
sinking at least 100 µA connected to enable pin 3 will work
well in this application.
A benefit of utilization of the enable input is that following an
initial charge of the input capacitor, subsequent turn-on
commands will induce no uncontrolled current inrush.
Figure II. Enable Input Equivalent Circuit
⎧ 1
⎫
P = Device dissipation in Watts = P ⎨
− 1⎬
⎩ Eff
⎭
OUT
As an example, assume that it is desired to maintain the
case temperature of an ARH2815S at +65°C or less while
operating in an open area whose ambient temperature
does not exceed +35°C; then
∆T = 65 - 35 = 35°C.
From the Specification Table, the worst case full load
efficiency for this device is 80%; therefore the maximum
power dissipation at full load is given by
⎫
⎧1
.W
P = 30 • ⎨ − 1⎬ = 30 • (0.25) = 75
⎩ .80 ⎭
and the required heat sink area is
35
⎧
⎫
A HEAT SINK = ⎨
0.85 ⎬
⎩ 80 • 7.5 ⎭
Synchronization
−1. 43
− 5.94 = 318
. in 2
Thus, a total heat sink surface area (including fins, if any)
of approximately 32 in 2 in this example, would limit case
rise to 35°C above ambient. A flat aluminum plate, 0.25"
thick and of approximate dimension 4" by 4" (16 in2 per
side) would suffice for this application in a still air
environment. Note that to meet the criteria, both sides of
the plate require unrestricted exposure to the ambient air.
The user should remember that when operating in the
vacuum of space, this method does not apply and all heat
must be conducted away from the attaching surface.
When using multiple converters, system requirements may
dictate operating several converters at a common system
frequency. To accommodate this requirement, the
ARH28XXS type converter provides a synchronization
input port.
The sync input port permits synchronization of an ARH
converter to any compatible external frequency source
operating in the band of 225 to 310 KHz. In the event of
failure of an external synchronization source, the converter
will revert to its own internally set frequency. When external
synchronization is not desired, the sync in port may be left
open (unconnected) permitting the converter to operate at
its own internally set frequency.
1Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
8
www.irf.com
ARH28XXS Series
28V Input, Single Output
When an external frequency source is not available, an
internal clock signal is provided through appropriate
buffering at the sync out port. This port can drive a
minimum of 3 ARH sync in ports thereby allowing all to
operate at the same clock frequency.
Output Short Circuit Protection
Protection against accidental short circuits on the output
is provided in the ARH28XXS converter. This protection is
implemented by sensing primary switching current and
reducing the switching pulse widths when a short occurs.
The output current is therefore limited to a maximum value,
which protects the converter. Under this condition the
internal power dissipation is nearly the same as for
maximum loading.
Input Undervoltage Protection
A minimum voltage is required at the input of the converter
to initiate operation. This voltage is set to a nominal value
of 16.8 volts. To preclude the possibility of noise or other
voltage variations at the input falsely initiating and halting
converter operation, a hysteresis of approximately 1.0
volts is incorporated into this circuit. The converter is
guaranteed to operate at 18 Volts input under all specified
conditions.
EMI Filtering
Although the internal filtering provided at both input and
output terminals of the ARH series converters is sufficient
for most applications, some critical applications may
require additional filtering in order to accommodate particular
system requirements.
While the internal input filter maintains input ripple current
below 50 mA p-p, an external filter can be applied to further
attenuate this ripple to a level below the CE03 limits imposed
by MIL-STD-461. International Rectifier currently supplies
such a filter housed in a complementary package. The
catalog number of this part is ARF461.
Output Noise
When attempting noise measurement at the output of
switching converters, measurement techniques employed
can have a significant influence on results during these
tests. Any noise measurements should be undertaken
only with test leads dressed as close to the device output
pins as is physically possible. Probe ground leads should
be kept to a minimum (<< 1") length to minimize the influence
of parasitic impedances on results.
Input Filter
To attenuate input ripple current, the ARH28XXS series
converters incorporate a two-stage LC input filter illustrated
in Figure III following. The elements of this filter comprise
the dominant input load impedance characteristic, and
therefore determine the nature of the current inrush at
turn-on.
Figure III. Input Filter
www.irf.com
9
ARH28XXS Series
28V Input, Single Output
Radiation Performance
The radiation tolerance characteristics inherent in the
ARH28XXS converters are a result of a carefully planned
ground-up design program with specific radiation design
goals. Identification of the general circuit topology, a
fundamental task in the design effort, was followed by
selection of appropriate elements from a list of devices for
which extensive radiation effects data was available. By
imposing sufficiently large margins on those electrical
parameters showing the worst case degrading effects of
radiation, designers were able to select appropriate
elements for incorporation into the circuit. Existing radiation
data was utilized for input to PSPICE and RadSPICE in the
generation of circuit performance verification analyses.
Thus, electrical performance capability under all
environmental conditions including radiation was well
understood before first application of power to the inputs.
A principal design goal was achieving a converter topology
that, because of large design margins, had radiation
performance essentially independent of radiation induced
element-lot performance variations. Where such margins
cannot be assured, element lots are either selected
following RLAT characterization as radiation hard devices
or, purchased as radiation hard devices so that realization
of the design goals are maintained.
.The following table specifies guaranteed minimum radiation
exposure levels tolerated while maintaining specification
limits.
Radiation Specification Tcase = 25°C
Test
Conditions
Min
Typ
Unit
MIL-STD-883, Method 1019.4
Total Ionizing Dose (2.:1 Margin) Operating bias applied during exposure
100
Krads(Si)
Temporary Saturation
1E8
Rads(Si)/sec
Survival
1E11
Dose Rate
MIL-STD-883, Method 1021
Heavy Ions
BNL Dual Van de Graf Generator
(Single Event Effects)
83
2
MeVxcm /mg
International Rectifier currently does not have a DLA Land and Maritime certified Radiation Hardness
Assurance Program.
Standard Quality Conformance Inspections on ARH28XXS Series (Filght Screened)
Inspection
Application
Samples
Group A
Part of screening on each unit
100%
Group B
Each inspection lot
* 5 units
Group C
First inspection lot or following Class 1 change
10 units
Group D
In line (Part of element evaluation)
3 units
* Group B quantity for option 2 End of Line QCI. No Group B samples required for Option 1, In-line.
10
www.irf.com
ARH28XXS Series
28V Input, Single Output
Mechanical Outline
Ø 0.136 – 6 HOLES
6 X 0.200
=1.200
1.675 2.200
0.040
PIN DIA.
0.375
0.300
1.950
0.138
1.40
0.150
2.400
2.700
0.275 MAX.
3.25 REF.
MAX
02817,1*
3/$1(
0.050 )/$1*(
0.500 MAX.
Note:
1. Dimensions are in inches.
2. Base Plate Mounting Plane Flatness 0.003 maximum.
3. Unless otherwise specified, tolerances are
∠
= ± 2°
.XX
= ± .01
.XXX
= ± .005
4. Device Weight - 120 grams maximum.
Pin Designation
Pin #
Designation
1
+ Input
2
Input Return
3
Enable
4
Sync In
5
Sync Out
8
Chassis
9
-Sense
10
+Sense
11
+V Output
12
+V Output
13
Output Return
14
Output Return
www.irf.com
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
Drawing Number
IR Standard
Part Number
5962-04232
ARH2805S
5962-04233
ARH2803R3S
11
ARH28XXS Series
28V Input, Single Output
Device Screening
Requirement
MIL-STD-883 Method
Temperature Range
No Suffix
d
CK
d
-55°C to +85°C
-55°C to +85°C
EM
-55°C to +85°C
Element Evaluation
MIL-PRF-38534
Class K
Class K
N/A
Non-Destructive Bond Pull
2023
Yes
Yes
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 160 hrs )
( 2 x 160 hrs )
Final Electrical
MIL-PRF-38534
-55°C, +25°C,
-55°C, +25°C,
-55°C, +25°C,
( Group A )
& Specification
+85°C
+85°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:
c
d
Best commercial practice.
CK is DLA class K compliant without radiation performance. No Suffix is a radiation rated device but not available
as a DLA qualified SMD per MIL-PRF-38534.
International Rectifier currently does not have a DLA certified Radiation Hardness Assurance Program.
Part Numbering
ARH 28 05 S /EM
Model
Input Voltage
Nominal
28 = 28V
Output Voltage
02R5 = 2.5V, 03R3 = 3.3V
05 = 5V, 05R2 = 5.2V
12 = 12V, 15 = 15V
Screening Level
(Please refer to Screening Table)
No Suffix, CK, EM
Output
S = Single
D = Dual
WORLD HEADQUARTERS: 101 N, Sepulveda Blvd., El Segundo, California 90245, USA Tel: (310) 252-7105
IR SAN JOSE: 2520 Junction Avenue, San Jose, California 95134, USA Tel: (408) 434-5000
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 06/2013
12
www.irf.com
Similar pages