IRF AHP27012DWES Hybrid-high reliabilitydc/dc converter Datasheet

PD-97182A
AHP270XXD SERIES
270V Input, Dual Output
HYBRID-HIGH RELIABILITY
DC/DC CONVERTER
Description
The AHP Series of DC/DC converters feature high
power density without derating over the full military
temperature range. This series is offered as lower cost
alternatives to the legendary AFL series with improved
performance for new design applications. The AHPs
are form, fit and functional replacement to the AFL
series. The new AHP series offers a full compliment of
single and dual output voltages operating from nominal
+28V or +270V inputs with output power ranging from
66W to 120W. For applications requiring higher output
power, multiple converters can be operated in parallel.
The internal current sharing circuits assure equal current
distribution among the paralleled converters. Same as
the AFL the AHP series incorporates International
Rectifier’s proprietary magnetic pulse feedback
technology providing optimum dynamic line and load
regulation response. This feedback system samples
the output voltage at the pulse width modulator fixed
clock frequency, nominally 550KHz. Multiple converters
can be synchronized to a system clock in the 500KHz
to 700KHz range or to the synchronization output of
one converter. Undervoltage lockout, primary and
secondary referenced inhibit, soft-start and load fault
protection are provided on all models.
These converters are hermetically packaged in two
enclosure variations, utilizing copper core pins to
minimize resistive DC losses. Three lead styles are
available, each fabricated with International Rectifier’s
rugged ceramic lead-to-package seal assuring long
term hermeticity in the most harsh environments.
AHP
Features
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
160V To 400V Input Range
±5V, ± 12V, and ±15V Outputs Available
High Power Density - up to 70W/in3
Up To 100W Output Power
Parallel Operation with Power Sharing
Low Profile (0.380") Seam Welded Package
Ceramic Feedthru Copper Core Pins
High Efficiency - to 87%
Full Military Temperature Range
Continuous Short Circuit and Overload
Protection
Output Voltage Trim
Primary and Secondary Referenced
Inhibit Functions
Line Rejection > 60 dB - DC to 50KHz
External Synchronization Port
Fault Tolerant Design
Single Output Versions Available
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. Contact IR Santa Clara for special
requirements.
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1
12/06/06
AHP270XXD Series
Specifications
Absolute Maximum Ratings
Input voltage
-0.5V to +500VDC
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, 160V< VIN < 400V unless otherwise specified.
Group A
Subgroups
Parameter
Test Conditions
INPUT VOLTAGE
Note 6
OUTPUT VOLTAGE
VIN = 270 Volts, 100% Load
Positive Output
Negative Output
Positive Output
Negative Output
Positive Output
Negative Output
Positive Output
Negative Output
Positive Output
Negative Output
Positive Output
Negative Output
AHP27005D
AHP27012D
AHP27015D
AHP27005D
AHP27012D
AHP27015D
1
1
1
1
1
1
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
Min
Nom
Max
Unit
160
270
400
V
4.95
-5.05
11.88
-12.12
14.85
-15.15
4.90
-5.10
11.76
-12.24
14.70
-15.30
5.00
-5.00
12.00
-12.00
15.00
-15.00
5.05
-4.95
12.12
-11.88
15.15
-14.85
5.10
-4.90
12.24
-11.76
15.30
-14.70
VIN = 160, 270, 400 Volts - Notes 6, 11
Either Output
Either Output
Either Output
OUTPUT CURRENT
AHP27005D
AHP27012D
AHP27015D
OUTPUT POWER
12.8
6.4
5.3
Total of Both Outputs - Notes 6,11
AHP27005D
AHP27012D
AHP27015D
80
96
V
A
W
100
MAXIMUM CAPACITIVE LOAD
Each Output - Note 1
OUTPUT VOLTAGE
TEMPERATURE COEFFICIENT
VIN = 270 Volts, 100% Load - Notes 1, 6
OUTPUT VOLTAGE REGULATION
Line
Load
1, 2, 3
1, 2, 3
Cross
AHP27005D
1, 2, 3
AHP27012D
1, 2, 3
AHP27015D
1, 2, 3
µF
5,000
-0.015
+0.015
Notes 10, 13
No Load, 50% Load, 100% Load
VIN = 160, 270, 400 Volts.
-0.5
-1.0
+0.5
+1.0
VIN = 160, 270, 400 Volts - Note 12
Positive Output
Negative Output
Positive Output
Negative Output
Positive Output
Negative Output
-1.0
-8.0
-1.0
-5.0
+1.0
+8.0
+1.0
+5.0
-1.0
-5.0
+1.0
+5.0
%/°C
%
For Notes to Specifications, refer to page 4
2
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AHP270XXD Series
Static Characteristics (Continued)
Group A
Subgroups
Parameter
OUTPUT RIPPLE VOLTAGE
AHP27005D
AHP27012D
AHP27015D
1, 2, 3
1, 2, 3
1, 2, 3
INPUT CURRENT
No Load
Inhibit 1
Inhibit 2
INPUT RIPPLE CURRENT
AHP27005D
AHP27012D
AHP27015D
1
2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
CURRENT LIMIT POINT
Expressed as a Percentage
of Full Rated Load
LOAD FAULT POWER
DISSIPATION
1
2
3
1, 2, 3
Test Conditions
Min
Nom
VIN = 160, 270, 400 Volts, 100% Load,
BW = 10MHz
VIN = 270 Volts
IOUT = 0
Unit
60
80
80
mVpp
13
15
3.0
5.0
Pin 4 Shorted to Pin 2
Pin 12 Shorted to Pin 8
VIN = 270 Volts, 100% Load
VOUT = 90% VNOM , Current split
equally on positive and negative outputs
Note 5
Max
115
105
105
VIN = 270 Volts
mA
60
70
80
mApp
125
125
125
%
33
W
Overload or Short Circuit
EFFICIENCY
AHP27005D
AHP27012D
AHP27015D
ENABLE INPUTS (Inhibit Function)
Converter Off
Sink Current
Converter On
Sink Current
SWITCHING FREQUENCY
SYNCHRONIZATION INPUT
Frequency Range
Pulse Amplitude, Hi
Pulse Amplitude, Lo
Pulse Rise Time
Pulse Duty Cycle
ISOLATION
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
VIN = 270 Volts, 100% Load
Logical Low on Pin 4 or Pin 12
Note 1
Logical High on Pin 4 and Pin 12 - Note 9
Note 1
78
82
83
-0.5
2.0
1, 2, 3
500
1, 2, 3
1, 2, 3
1, 2, 3
500
2.0
-0.5
Note 1
Note 1
1
Input to Output or Any Pin to Case
(except Pin 3). Test @ 500VDC
DEVICE WEIGHT
Slight Variations with Case Style
MTBF
MIL-HDBK-217F, AIF @ TC = 40°C
82
85
87
550
20
100
0.8
100
50
100
V
µA
V
µA
600
KHz
700
10
0.8
100
80
KHz
V
V
ns
%
MΩ
85
300
%
g
KHrs
For Notes to Specifications, refer to page 4
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3
AHP270XXD Series
Dynamic Characteristics -55°C < TCASE < +125°C, VIN=270V unless otherwise specified.
Parameter
Group A
Subgroups
AHP27012D
Either Output
AHP27015D
Either Output
Min
Nom
Max
Unit
Notes 2, 8
LOAD TRANSIENT RESPONSE
AHP27005D
Either Output
Test Conditions
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-450
450
200
mV
µs
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
10% ⇒ 50%
50% ⇒ 10%
-450
450
200
400
mV
µs
µs
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-750
750
200
mV
µs
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
10% ⇒ 50%
50% ⇒ 10%
-750
750
200
400
mV
µs
µs
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-750
750
200
mV
µs
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
10% ⇒ 50%
50% ⇒ 10%
-750
750
200
400
mV
µs
µs
-500
500
500
mV
µs
10
120
%
ms
Notes 1, 2, 3
LINE TRANSIENT RESPONSE
VIN Step = 160 ⇔ 400 Volts
Amplitude
Recovery
TURN-ON CHARACTERISTICS
Overshoot
Delay
Note 4
4, 5, 6
4, 5, 6
Enable 1, 2 on. (Pins 4, 12 high or
open)
LOAD FAULT RECOVERY
Same as Turn On Characteristics.
LINE REJECTION
MIL-STD-461D, CS101, 30Hz to
50KHz - Note 1
50
5.0
75
60
70
dB
Notes to Specifications:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
4
Parameters not 100% tested but are guaranteed to the limits specified in the table.
Recovery time is measured from the initiation of the transient to where Vout has returned to within ±1.0% of
Vout at 50% load.
Line transient transition time ≥ 100µs.
Turn-on delay is measured with an input voltage rise time of between 100V and 500V per msec.
Current limit point is that condition of excess load causing output voltage to drop to 90% of nominal.
Parameter verified as part of another test.
All electrical tests are performed with the remote sense leads connected to the output leads at the load.
Load transient transition time ≥ 10µs.
Enable inputs internally pulled high. Nominal open circuit voltage ≈ 4.0VDC.
Load current split equally between +Vout and -V out.
Output load must be distributed so that a minimum of 20% of the total output power is being provided by one of
the outputs.
Cross regulation measured with load on tested output at 30% of maximum load while changing the load on
other output from 30% to 70%.
All tests at no-load are performed after start-up of the converter. The converter may fail to start when the output
load is less than 1.0W. Under these circumstances, the converter’s start-up circuitry will continue to cycle until
an adequate load is present.
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AHP270XXD Series
Block Diagram
Figure I. AHP Dual Output
DC+ Input
1
Enable 1 4
Input
Filter
Output
Filter
7 + Output
Current
Sense
Primary
Bias Supply
8 Output Return
Output
Filter
Sync Output
Case
Input Return
-Output
5
Control
Sync Input
9
6
Error
Amp
& Ref
Share
Amplifier
11 Share
12 Enable 2
3
10 Trim
Output Voltage Trim
2
Circuit Operation and Application Information
The AHP series of converters employ a forward switched
mode converter topology. (refer to Figure I.) Operation of
the device is initiated when a DC voltage whose magnitude
is within the specified input limits is applied between pins 1
and 2. If pins 4 and 12 are enabled (at a logical 1 or open)
the primary bias supply will begin generating a regulated
housekeeping voltage bringing the circuitry on the primary
side of the converter to life. Two power MOSFETs used to
chop the DC input voltage into a high frequency square
wave, apply this chopped voltage to the power transformer.
As this switching is initiated, a voltage is impressed on a
second winding of the power transformer which is then
rectified and applied to the primary bias supply. When this
occurs, the input voltage is excluded from the bias voltage
generator and the primary bias voltage becomes internally
generated.
The switched voltage impressed on the secondary output
transformer windings is rectified and filtered to provide the
positive and negative converter output voltages. An error
amplifier on the secondary side compares the positive output
voltage to a precision reference and generates an error
signal proportional to the difference. This error signal is
magnetically coupled through the feedback transformer into
the control section of the converter varying the pulse width
of the square wave signal driving the MOSFETs, narrowing
the pulse width if the output voltage is too high and widening
it if it is too low. These pulse width variations provide the
necessary corrections to regulate the magnitude of output
voltage within its’ specified limits.
Because the primary and secondary sides are coupled by
magnetic elements, full isolation from input to output is
achieved.
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Although incorporating several sophisticated and useful
ancilliary features, basic operation of the AHP270XXD series
can be initiated by simply applying an input voltage to pins 1
and 2 and connecting the appropriate loads between pins 7,
8, and 9. Of course, operation of any converter with high
power density should not be attempted before secure
attachment to an appropriate heat dissipator. (See Thermal
Considerations, page 7)
Inhibiting Converter Output (Enable)
As an alternative to application and removal of the DC voltage
to the input, the user can control the converter output by
providing TTL compatible, positive logic signals to either of
two enable pins (pin 4 or 12). The distinction between these
two signal ports is that enable 1 (pin 4) is referenced to the
input return (pin 2) while enable 2 (pin 12) is referenced to
the output return (pin 8). Thus, the user has access to an
inhibit function on either side of the isolation barrier. Each
port is internally pulled “high” so that when not used, an
open connection on both enable pins permits normal
converter operation. When their use is desired, a logical
“low” on either port will shut the converter down.
Figure II. Enable Input Equivalent Circuit
+5.6V
Pin 4 or
Pin 12
1N4148
100K
Disable
290K
2N3904
150K
Pin 2 or
Pin 8
5
AHP270XXD Series
Internally, these ports differ slightly in their function. In use,
a low on Enable 1 completely shuts down all circuits in the
converter, while a low on Enable 2 shuts down the secondary
side while altering the controller duty cycle to near zero.
Externally, the use of either port is transparent to the user
save for minor differences in idle current. (See specification
table).
90% duty cycle. Compatibility requires transition times less
than 100ns, maximum low level of +0.8V and a minimum high
level of +2.0V. The sync output of another converter which
has been designated as the master oscillator provides a
convenient frequency source for this mode of operation.
When external synchronization is not indicated, the sync in
pin should be left unconnected thereby permitting the
converter to operate at its own internally set frequency.
Synchronization of Multiple Converters
The sync output signal is a continuous pulse train set at
550 ±50KHz, with a duty cycle of 15 ±5.0%. This signal is
referenced to the input return and has been tailored to be
compatible with the AHP sync input port. Transition times
are less than 100ns and the low level output impedance is
less than 50Ω. This signal is active when the DC input
voltage is within the specified operating range and the
converter is not inhibited. This synch output has adequate
drive reserve to synchronize at least five additional
converters. A typical synchronization connection option is
illustrated in Figure III.
When operating multiple converters, system requirements
often dictate operation of the converters at a common
frequency. To accommodate this requirement, the AHP
series converters provide both a synchronization input and
output.
The sync input port permits synchronization of an AHP
converter to any compatible external frequency source
operating between 500KHz and 700KHz. This input signal
should be referenced to the input return and have a 10% to
Figure III. Preferred Connection for Parallel Operation
Power
Input
1
Vin
Enable 2
Rtn
Share
AHP
Case
Enable 1
Trim
- Output
Return
Sync Out
Optional
Synchronization
Connection
12
Sync In
+ Output
6
7
1
12
Share
Bus
Enable 2
Vin
Rtn
Case
Enable 1
AHP
Share
Trim
to Negative Load
- Output
Return
Sync Out
+ Output
Sync In
7
6
1
Vin
Enable 2
Rtn
Share
Case
Enable 1
AHP
Sync Out
Sync In
to Positive Load
12
Trim
- Output
Return
+ Output
6
7
(Other Converters)
Parallel Operation-Current and Stress Sharing
Figure III. illustrates the preferred connection scheme for
operation of a set of AHP converters with outputs operating
in parallel. Use of this connection permits equal current
sharing among the members of a set whose load current
exceeds the capacity of an individual AHP. An important feature
6
of the AHP series operating in the parallel mode is that in
addition to sharing the current, the stress induced by
temperature will also be shared. Thus if one member of a
paralleled set is operating at a higher case temperature, the
current it provides to the load will be reduced as compensation
for the temperature induced stress on that device.
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AHP270XXD Series
When operating in the shared mode, it is important that
symmetry of connection be maintained as an assurance of
optimum load sharing performance. Thus, converter outputs
should be connected to the load with equal lengths of wire of
the same gauge and should be connected to a common
physical point, preferably at the load along with the converter
output and return leads. All converters in a paralleled set
must have their share pins connected together. This
arrangement is diagrammatically illustrated in Figure III.
showing the output and return pins connected at a star
point which is located as close as possible to the load.
As a consequence of the topology utilized in the current
sharing circuit, the share pin may be used for other functions.
In applications requiring only a single converter, the voltage
appearing on the share pin may be used as a “totall current
monitor”. The share pin open circuit voltage is nominally
+1.00V at no load and increases linearly with increasing
total output current to +2.20V at full load. Note that the
current we refer to here is the total output current, that is,
the sum of the positive and negative output currents.
Thermal Considerations
Because of the incorporation of many innovative
technological concepts, the AHP series of converters is
capable of providing very high output power from a package
of very small volume. These magnitudes of power density
can only be obtained by combining high circuit efficiency
with effective methods of heat removal from the die junctions.
This requirement has been effectively addressed inside the
device; but when operating at maximum loads, a significant
amount of heat will be generated and this heat must be
conducted away from the case. To maintain the case
temperature at or below the specified maximum of 125°C,
this heat must be transferred by conduction to an
appropriate heat dissipater held in intimate contact with the
converter base-plate.
Since the effectiveness of this heat transfer is dependent
on the intimacy of the baseplate/heatsink interface, it is
strongly recommended that a high thermal conductivity heat
transferring medium is inserted between the baseplate and
heatsink. The material most frequently utilized at the factory
during all testing and burn-in processes is sold under the
trade name of Sil-Pad® 4001 . This particular product is an
insulator but electrically conductive versions are also
available. Use of these materials assures maximum surface
contact with the heat dissipater thereby compensating for
any minor surface variations. While other available types of
heat conductive materials and thermal compounds provide
similar effectiveness, these alternatives are often less
convenient and can be somewhat 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 (∆T) above ambient temperature is given
by the following expression:
.
⎧ ∆T ⎫ −143
⎬
− 3.0
A HEAT SINK ≈ ⎨
⎩ 80P 0.85 ⎭
where
∆T = Case temperature rise above ambient
⎧ 1
⎫
− 1⎬
P = Device dissipation in Watts = POUT ⎨
⎩ Eff
⎭
As an example, assume that it is desired to operate an
AHP27015D while holding the case temperature at T C ≤
+85°C in an area where the ambient temperature is held to
a constant +25°C; then
∆T = 85 - 25 = 60°C
From the Specification Table, the worst case full load
efficiency for this device is 83% @ 100W: thus, power
dissipation at full load is given by
⎧ 1
⎫
P = 100 • ⎨ − 1⎬ = 100 • (0.205) = 20.5W
⎩ .83 ⎭
and the required heat sink area is
60
⎧
⎫
A HEAT SINK = ⎨
⎬
⎩ 80 • 20.50.85 ⎭
−1.43
− 3.0 = 56.3 in 2
Thus, a total heat sink surface area (including fins, if any) of
56 in2 in this example, would limit case rise to 60°C above
ambient. A flat aluminum plate, 0.25" thick and of
approximate dimension 4" by 7" (28 in 2 per side) would
suffice for this application in a still air environment. Note
that to meet the criteria in this example, both sides of the
plate require unrestricted exposure to the +25°C ambient air.
1Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
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7
AHP270XXD Series
Input Filter
Table 1. Output Voltage Trim Values and Limits
The AHP270XXD series converters incorporate a single
stage LC input filter whose elements dominate the input
load impedance characteristic during the turn-on sequence.
The input circuit is as shown in Figure IV.
Figure IV. Input Filter Circuit
8.4µH
Pin 1
0.54µfd
Pin 2
Input Overvoltage Protection
One additional protection feature is incorporated into the
AHP input circuit. It is an input over-voltage protection. The
output will shutdown and start at approximately 110% of the
maximum rated input voltage.
Undervoltage Lockout
A minimum voltage is required at the input of the converter
to initiate operation. This voltage is set to 150V ± 5.0V. To
preclude the possibility of noise or other variations at the
input falsely initiating and halting converter operation, a
hysteresis of approximately 10V is incorporated in this circuit.
Thus if the input voltage droops to 140V ± 5.0V, the converter
will shut down and remain inoperative until the input voltage
returns to ≈ 150V.
Output Voltage Adjust
By use of the trim pin (10), the magnitude of output voltages
can be adjusted over a limited range in either a positive or
negative direction. Connecting a resistor between the trim
pin and either the output return or the positive output will
raise or lower the magnitude of output voltages. The span
of output voltage adjustment is restricted to the limits shown
in Table I.
AHP27005D
AHP27012D
AHP27015D
Vout
Radj
Vout
Radj
Vout
Radj
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.583
0
12.5K
33.3K
75K
200K
∞
12.5
12.4
12.3
12.2
12.1
12.0
11.7
11.3
10.8
10.6
10.417
0
47.5K
127K
285K
760K
∞
15.5
15.4
15.3
15.2
15.1
15.0
14.6
14.0
13.5
13.0
12.917
0
62.5K
167K
375K
1.0M
∞
190K
65K
23K
2.5K
0
975K
288K
72.9K
29.9K
0
1.2M
325K
117K
12.5K
0
Note that the nominal magnitude of output voltage resides in
the middle of the table and the corresponding resistor value
is set to ∞. To set the magnitude greater than nominal, the
adjust resistor is connected to output return. To set the
magnitude less than nominal, the adjust resistor is connected
to the positive output. (Refer to Figure V.)
Figure V. Connection for VOUT Adjustment
12
Enable 2
Share
AHP270XXD
RADJ
Trim
+
- Vout
To
Loads
Return
+ Vout
7
Connect Radj to + to increase, - to decrease
For output voltage settings that are within the limits, but
between those listed in Table I, it is suggested that the
resistor values be determined empirically by selection or by
use of a variable resistor. The value thus determined can
then be replaced with a good quality fixed resistor for
permanent installation.
When use of this adjust feature is elected, the user should
be aware that the temperature performance of the converter
output voltage will be affected by the temperature
performance of the resistor selected as the adjustment
element and therefore, is advised to employ resistors with a
tight temperature coefficient of resistance.
8
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AHP270XXD Series
Mechanical Outlines
Case X
Case W
Pin Variation of Case Y
3.000
ø 0.128
2.760
0.050
0.050
1
12
0.250
0.250
0.200 Typ
Non-cum
6
7
1.260 1.500
1.000
Ref
1.000
Pin
ø 0.040
0.220
2.500
0.220
Pin
ø 0.040
2.800
2.975 max
0.525
0.238 max
0.42
0.380
Max
0.380
Max
Case Y
Case Z
Pin Variation of Case Y
1.150
0.300
ø 0.140
0.25 typ
0.050
0.050
1
12
0.250
0.250
1.000
Ref
6
1.750
1.000
Ref
0.200 Typ
Non-cum
7
1.500 1.750 2.00
Pin
ø 0.040
0.375
Pin
ø 0.040
0.220
0.220
0.36
2.500
2.800
2.975 max
0.525
0.238 max
0.380
Max
0.380
Max
Tolerances, unless otherwise specified:
.XX
.XXX
=
=
±0.010
±0.005
BERYLLIA WARNING: These converters are hermetically sealed; however they contain BeO substrates and should not be ground or subjected to any other
operations including exposure to acids, which may produce Beryllium dust or fumes containing Beryllium
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9
AHP270XXD Series
Device Screening
Requirement
MIL-STD-883 Method
Temperature Range
No Suffix
ES
d
-20°C to +85°C -55°C to +125°C
Element Evaluation
HB
e -55°C to +125°C
CH
-55°C to +125°C
MIL-PRF-38534
N/A
N/A
N/A
Class H
2023
N/A
N/A
N/A
N/A
Internal Visual
2017
c
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
Final Electrical
MIL-PRF-38534
25°C
( Group A )
& Specification
Non-Destructive
Bond Pull
25°C d
160 hrs@125°C 160 hrs@125°C
-55°C, +25°C,
-55°C, +25°C,
+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
c
Notes:
 Best commercial practice
‚ Sample tests at low and high temperatures
ƒ -55°C to +105°C for AHE, ATO, ATW
Pin Designation
Pin #
Designation
1
+ Input
2
Input Return
3
Case
4
Enable 1
5
Sync Output
6
Sync Input
7
+ Output
8
Output Return
9
- Output
10
Output Voltage Trim
11
Share
12
Enable 2
Part Numbering
AHP 270 05 D X ES
Model
Screening Level
Input Voltage
No Suffix, ES, HB, CH
28 = 28V
270 = 270V
Output Voltage
05 = ±5V
12 = ±12V
15 = ±15V
(Please refer to Screening Table)
Case Style
W, X, Y, Z
Output
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. 12/2006
10
www.irf.com
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