AHF2815S/CHPBF [INFINEON]
DC-DC Regulated Power Supply Module, 1 Output, 12.24W, Hybrid, HERMETIC SEALED PACKAGE-8;型号: | AHF2815S/CHPBF |
厂家: | Infineon |
描述: | DC-DC Regulated Power Supply Module, 1 Output, 12.24W, Hybrid, HERMETIC SEALED PACKAGE-8 |
文件: | 总17页 (文件大小:149K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PD - 94541
AHF28XX SERIES
28V Input, Single and Dual Output
ADVANCED ANALOG
HYBRID-HIGH RELIABILITY
DC/DC CONVERTERS
Description
The AHF Series of DC/DC converters feature single or
dual outputs over the full military temperature range.
No derating in output power is required, making them
suitable for use in rugged military applications. The low
profile, small outline package is ideally suited to the
tight board space requirements of many industrial and
aerospace applications. Designed for nominal 28Vdc
inputs, this family of converters will meet the require-
ments of MIL-STD-704D. The basic circuit utilizes a
pulse width modulated, feed-forward topology at a nomi-
nal switching frequency of 550KHz. Input to output iso-
lation is achieved through the use of transformers in
the forward and feedback circuits.
AHF
Features
n 16 to 40 VDC Input Range (28 VDC Nominal)
n Single and Dual Outputs
n 12 Watts Output Power
n
22.8 W/in3 Power Density
Low Input / Output Noise
n
(50mA/60mVp-p max. respectively)
Indefinite Short Circuit and Overload
Protection
Wideband Control Loop for
Superior Transient Characterstics
The proprietary magnetic feedback circuit provides for
an extremely wide bandwidth control loop with a high
phase margin. The closed loop frequency response of
this converter family extends to approximately 50KHz,
resulting in superior line and load transient character-
istics. This feedback method is also inherently tem-
perature and radiation insensitive. This gives the AHF
Series an important advantage over converters that
incorporate opto-couplers in their design.
n
n
n No Derating for -55°C to +125°C Opertation
n
Constant Switching Frequency
(550KHz Nominal)
These converters are manufactured in a facility certi-
fied to MIL-PRF-38534. All processes used to manu-
facture these converters have been qualified to enable
Advanced Analog to deliver compliant devices. Four
screening grades are available to satisfy a wide range
of requirements.The CH grade converters are fully com-
pliant to MIL-PRF-38534 class H. The HB grade con-
verters are processed to full MIL-PRF-38534 screen-
ing but do not have class H element evaluation as re-
quired by MIL-PRF-38534. Two grades are fully tested
and operate the full military temperature range without
derating of output power. Industrial and commercial
grades are also available. Variations are electrical,
mechanical and screening can be accommodated.
Extensive computer simulation using complex
modeling enables rapid design modification to
be provided. Contact Advanced Analog with spe-
cific requirements.
www.irf.com
1
10/08/02
AHF28XX Series
Specifications
AHF2805S
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Soldering Temperature
Case Temperature
300°C for 10 seconds
Operating -55°C to +125°C
Storage -65°C to +135°C
Table I. Electrical Performance Characteristics
Conditions
Limits
Test
Symbol
VOUT
Group A
Subgroups
Device
Types
Unit
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
≤
≤
Min
Max
Output voltage
Output current1
IOUT = 0
1
2,3
01
4.95
4.90
5.05
5.10
V
IOUT
VIN = 16, 28, and 40 V dc
1,2,3
1,2,3
01
01
2400
60
mA
Output ripple
voltage2
VRIP
VIN = 16, 28, and 40 V dc,
B.W. = 20 Hz to 2MHz
mV p-p
Line regulation
Load regulation
Input current
VRLINE
VRLOAD
IIN
VIN = 16, 28, and 40 V dc,
Iout = 0, 500, and 1000 mA
1,2,3
1,2,3
1,2,3
01
01
01
25
50
mV
mV
VIN = 16, 28, and 40 V dc,
IOUT = 0, 500, and 1000 mA
IOUT = 0, inhibit (pin 1)
tied to input return (pin 7)
IOUT = 0,
12
30
mA
inhibit (pin 1) = open
Input ripple current2
Efficiency
IRIP
IOUT = 1000mA
B.W. = 20 Hz to 2MHz
1,2,3
01
01
01
50
mA p-p
%
EFF
IOUT = 1000mA
1
2,3
76
74
Isolation
ISO
Input to output or any pin
To case (except pin 6) at
500V dc Tc = +25°C
1
4
100
M
Ω
Capacitive load3,4
CL
No effect on dc
01
500
µF
performance, Tc = +25°C
Power dissipation
load fault
PD
FS
Overload 5
Short circuit
1
01
01
6
2
W
1,2,3
Switching
frequency
IOUT = 1000mA
4,5,6
01
500
600
kHz
For Notes to Specifications, refer to page 3
2
www.irf.com
AHF28XX Series
AHF2805S
Table I. Electrical Performance Characteristics - continued
Conditions
Limits
Unit
Test
Symbol
VOTLOAD
Group A
Subgroups
Device
Types
-55°C Tc +125°C
≤
≤
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Min
Max
Output response to
step transient load
changes6
1200 mA to/from 2400mA
0 mA to/from 1200mA
4,5,6
4,5,6
01
01
-300
-500
+300
+500
mV pk
mV pk
Recovery time step
transient load
changes6.7
TTLOAD
1200 mA to/from 2400mA
4,5,6
70
µs
0 mA to 1200 mA
500 mA to 0 mA
4,5,6
4,5,6
1200
8
ms
ms
Output response to
transient step line
changes
VOTLINE
Input step 16 V to/from
4,5,6
4,5,6
01
01
500
800
mV pk
µs
8
40 V dc, IOUT = 2400mA 4,
Recovery time
transient step line
changes
TTLINE
Input step 16 V to/from 40Vdc
I
OUT = 2400mA 4, 7, 8
Turn on overshoot
Turn on delay
VTonOS
TonD
IOUT = 0 and 2400mA
IOUT = 0 and 2400mA 9
4,5,6
4,5,6
01
01
600
20
mV pk
ms
Load fault
recovery4,9
TrLF
4,5,6
01
20
35
ms
Weight
grams
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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.
Thereafter, parameters shall be guaranteed to the limits specified in Table I.
5. 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.
6. Load step transition time between 2 and 10 microseconds.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1
percent of VOUT at 50 percent load.
8. Input step transition time between 2 and 10 microseconds.
9. Turn-on delay time measurement is for either a step application of power at the input or the removal of
ground signal from the inhibit pin (pin 1) while power is applied to the input is unlimited.
www.irf.com
3
AHF28XX Series
Specifications
AHF2812S
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Soldering Temperature
Case Temperature
300°C for 10 seconds
Operating -55°C to +125°C
Storage -65°C to +135°C
Table II. Electrical Performance Characteristics
Conditions
Test
Symbol
VOUT
Group A
Subgroups
Device
Types
Limits
Min Max
Unit
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
≤
≤
Output voltage
Output current1
IOUT = 0
1
2,3
01
11.88
11.76
12.12
12.24
V
IOUT
VIN = 16, 28, and 40 V dc
1,2,3
1,2,3
01
01
1000
60
mA
Output ripple
voltage2
VRIP
VIN = 16, 28, and 40 V dc,
B.W. = 20 Hz to 2MHz
mV p-p
Line regulation
Load regulation
Input current
VRLINE
VRLOAD
IIN
V
IN = 16, 28, and 40 V dc,
1,2,3
1,2,3
1,2,3
01
01
01
50
50
mV
mV
Iout = 0, 500, and 1000 mA
VIN = 16, 28, and 40 V dc,
IOUT = 0, 500, and 1000 mA
I
OUT = 0, inhibit (pin 1)
12
50
tied to input return (pin 7)
IOUT = 0,
mA
inhibit (pin 1) = open
Input ripple current2
IRIP
IOUT = 1000mA
B.W. = 20 Hz to 2MHz
1,2,3
01
50
mA p-p
%
Efficiency
Isolation
EFF
I
OUT = 1000mA
1
2,3
01
01
78
75
ISO
Input to output or any pin
to case (except pin 6) at
500V dc Tc = +25°C
1
4
100
M
Ω
Capacitive load3,4
CL
PD
No effect on dc
performance, Tc = +25°C
01
500
µF
Power dissipation
load fault
Overload 5
Short circuit
1
01
01
6
2
W
1,2,3
Switching
frequency
FS
IOUT = 1000mA
4,5,6
01
500
600
kHz
For Notes to Specifications, refer to page 5
4
www.irf.com
AHF28XX Series
AHF2812S
Table II. Electrical Performance Characteristics - continued
Test
Symbol
VOTLOAD
TTLOAD
Conditions
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
Group A
Subgroups
Device
Types
Limits
Unit
≤
≤
Min
Max
unless otherwise specified
Output response
to step transient
load changes6
50 mA to/from 1000mA
0 mA to/from 500mA
4
5,6
4
01
01
-300
-450
-500
-750
+300
+450
+500
+750
mV pk
µs
5,6
Recovery time
step transient
load changes6,7
50 mA to/from 1000mA
0 mA to 500 mA
4,5,6
4,5,6
100
1500
500 mA to 0 mA
4,5,6
4,5,6
10
ms
Output response
to transient step
line changes
VOTLINE
Input step 16 V to/from
40 V dc, IOUT =1000mA 4, 8
01
01
1500
mV pk
Recovery time
transient step
line changes
TTLINE
Input step 16 V to/from 40Vdc
4,5,6
800
µs
I
OUT =1000mA 4, 7, 8
Turn on
overshoot
VTonOS
TonD
TrLF
IOUT = 0 and 1000mA
IOUT = 0 and 1000mA 9
4,5,6
4,5,6
4,5,6
01
01
01
600
20
mV pk
ms
Turn on delay
Load fault
recovery4,9
20
ms
Weight
35
grams
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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.
Thereafter, parameters shall be guaranteed to the limits specified in Table II.
5. 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.
6. Load step transition time between 2 and 10 microseconds.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1
percent of VOUT at 50 percent load.
8. Input step transition time between 2 and 10 microseconds.
9. 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 1) while power is applied to the input is unlimited.
www.irf.com
5
AHF28XX Series
Specifications
AHF2815S
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Soldering Temperature
Case Temperature
300°C for 10 seconds
Operating -55°C to +125°C
Storage -65°C to +135°C
Table III. Electrical Performance Characteristics
Test
Symbol
Conditions
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Group A
Subgroups
Device
Types
Limits
Min Max
Unit
≤
≤
Output voltage
Output current1
VOUT
IOUT = 0
1
2,3
All
14.85 15.15
14.70 15.30
V
IOUT
VIN = 18, 28, and 40 V dc
1,2,3
1,2,3
All
All
2000
50
mA
Output ripple
voltage2
VRIP
VIN = 18, 28, and 40 V dc,
B.W. = 20 Hz to 2 MHz
mV p-p
Line regulation
VRLINE
VIN = 18, 28, and 40 V dc,
Iout = 0, 1000, and 2000 mA
1
2,3
All
All
±35
±75
mV
mV
Load regulation
Input current
VRLOAD
VIN = 18, 28, and 40 V dc,
IOUT = 0, 1000, and 2000 mA
1,2,3
1,2,3
1,2,3
±150
IIN
IOUT = 0, inhibit (pin 2)
tied to input return (pin 10)
IOUT = 0,
All
18
50
mA
inhibit (pin 2) = open
Input ripple current2
Efficiency
IRIP
I
OUT = 2000mA,
All
All
All
20
mA p-p
%
B.W. = 20 Hz to 2 MHz
EFF
I
OUT = 2000mA
1
2,3
80
77
Isolation
ISO
Input to output or any pin
to case (except pin 7) at
500 V dc Tc = +25°C
1
4
100
M
Ω
Capacitive load3,4
CL
PD
No effect on dc performance,
Tc = +25°C
All
200
µF
Power dissipation
load fault
Overload 5
1
All
All
6
2
W
Short circuit
1,2,3
Switching frequency
FS
IOUT = 2000mA
4,5,6
01, 04
02, 05
03, 06
250
250
275
300
270
300
kHz
For Notes to Specifications, refer to page 7
6
www.irf.com
AHF28XX Series
AHF2815S
Table III. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Group A
Subgroups
Device
Types
Limits
Max
Unit
≤
≤
Min
Output response to
step transient load
Changes6
VOTLOAD
TTLOAD
1000 mA to/from 2000mA
0 mA to/from 1000mA
4,5,6
4,5,6
4
All
All
All
04
-800
+800
+750
100
200
5
mV pk
-1000
Recovery time step
transient load
Changes6,7
1000 mA to/from 2000mA
0 mA to/from 1000 mA
µs
5,6
4
ms
5,6
10
Output response to
transient step line
changes
VOTLINE
Input step 18 V to/from
4,5,6
4,5,6
-1000
+1000
500
mV pk
05
06
04
4, 8
40 V dc, IOUT = 2000mA
Recovery time
transient step line
changes
TTLINE
Input step 18 V to/from 40Vdc
µs
05
06
All
All
4, 7, 8
IOUT = 2000mA
Turn on overshoot
Turn on delay
VTonOS
TonD
IOUT = 0 and 2000mA
IOUT = 0 and 2000mA 9
4,5,6
4,5,6
750
12
mV pk
ms
Load fault
recovery4,9
TrLF
4,5,6
All
12
38
ms
Weight
grams
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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.
Thereafter, parameters shall be guaranteed to the limits specified in Table III.
5. 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.
6. Load step transition time between 2 and 10 microseconds.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1
percent of VOUT at 50 percent load.
8. Input step transition time between 2 and 10 microseconds.
9. 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 is unlimited.
www.irf.com
7
AHF28XX Series
Specifications
AHF2805D
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Soldering Temperature
Case Temperature
300°C for 10 seconds
Operating -55°C to +125°C
Storage -65°C to +135°C
Table IV. Electrical Performance Characteristics
Test
Symbol
Conditions
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
IOUT = 0
Group A
Subgroups
Device
Types
Limits
Min Max
Unit
≤
≤
Output voltage
Output current1,2
VOUT
1
01
±4.95
±4.90
±5.05
±5.10
V
2,3
VIN = 16, 28, and 40 V dc,
each output
IOUT
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
01
01
01
01
01
01
0.12
1.08
60
A
mV p-p
mV
Output ripple
voltage3
VIN = 16, 28, and 40 V dc,
B.W. = 20 Hz to 2 MHz
VIN = 16, 28, and 40 V dc,
Iout = 0, 1200, and 2400 mA
VIN = 16, 28, and 40 V dc,
VRIP
Line regulation4
Load regulation4
Cross regulation5
Input current
VRLINE
VRLOAD
VRcros
IIN
30
I
OUT = 0, 1200, and 2400 mA
30
mV
10 percent to 90 percent
load change
%
10
±
IOUT = 0, inhibit (pin 1)
tied to input return (pin 7)
12
60
mA
IOUT =0, inhibit (pin 1) = open
IOUT = 2400mA
Input ripple
current3,4
Efficiency4
IRIP
B.W. = 20 Hz to 2 MHz
IOUT = 2400mA,
1,2,3
1,3
2
01
01
01
50
mA p-p
%
EFF
75
72
TC =+25°C
Input to output or any pin
to case (except pin 6) at
500V dc, TC = +25°C
No effect on dc
Isolation
ISO
CL
1
4
100
M
Ω
Capacitive load6,7
performance, TC = +25°C,
total for both outputs
01
200
µF
For Notes to Specifications, refer to page 9
8
www.irf.com
AHF28XX Series
AHF2805D
Table IV. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
-55°C Tc +125°C
Group A
Subgroups
Device
Types
Limits
Unit
≤
≤
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Overload, TC = +25°C 8
Min
Max
Power dissipa-
tion load fault
PD
1,2,3
01
6
2
W
Short circuit, TC = +25°C
Switching
frequency4
Output response
to step transient
load changes4,9
FS
IOUT = 2400mA
1200 mA to/from 2400mA
4,5,6
4,5,6
01
01
500
600
kHz
VOTLOAD
-400
-800
+400
+800
mV pk
0 mA to/from 1200 mA
4,5,6
4,5,6
Recovery time
step transient load
changes4,9,10
1200 mA to/from 2400mA
01
70
TTLOAD
µs
0 mA to/from 1200 mA
4,5,6
4,5,6
100
Output response
transient step line
changes4,7,11
Input step from/to 16 to
40 V dc, IOUT =2400mA
VOTLINE
01
01
-400
+400
mV pk
µs
Recovery time
transient step line
changes4,7,10,11
TTLINE
Input step from/to 16 to 40 V
dc, IOUT =2400mA
4,5,6
1200
Turn on
I
OUT =0 and 2400mA
4,5,6
4,5,6
01
01
600
25
mV pk
ms
overshoot4
Turn on delay4,12
VTonOS
TonD
IOUT = 0 and 2400mA
Load fault
recovery7
TrLF
4,5,6
01
25
38
ms
Weight
grams
Notes to Specifications
1. Parameter guaranteed by line load and cross regulation tests.
2. Up to 90 percent of full power is available from either output provided the total output does not exceed 12W.
3. Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
4. Load current split equally between +VOUT and –VOUT
.
5. 1.2 watt load on output under test, 1.2 watt to 10.8 watt load change on other output.
6. 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.
7. Parameter shall be tested as part of design characterization and after design or process changes.
Thereafter, parameters shall be guaranteed to the limits specified in Table IV.
8. 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.
9. Load step transition time between 2 and 10 microseconds.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1
percent of VOUT at 50 percent load.
11. Input step transition time between 2 and 10 microseconds.
12. 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 1) while power is applied to the input.
www.irf.com
9
AHF28XX Series
Specifications
AHF2812D
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Soldering Temperature
Case Temperature
300°C for 10 seconds
Operating -55°C to +125°C
Storage -65°C to +135°C
Table V. Electrical Performance Characteristics
Test
Symbol
Conditions
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
IOUT = 0
Group A
Subgroups
Device
Types
Limits
Min Max
Unit
≤
≤
Output voltage
Output current1,2
VOUT
1
01
±11.88 ±12.12
±11.76 ±12.24
V
2,3
VIN = 16, 28, and 40 V dc,
each output
IOUT
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
01
01
01
01
01
01
100
900
60
mA
mV p-p
mV
Output ripple
voltage3
VIN = 16, 28, and 40 V dc,
B.W. = 20 Hz to 2 MHz
VIN = 16, 28, and 40 V dc,
Iout = 0, 500, and 1000 mA
VIN = 16, 28, and 40 V dc,
VRIP
Line regulation4
Load regulation4
Cross regulation5
Input current
VRLINE
VRLOAD
VRcros
IIN
30
I
OUT = 0, 500, and 1000 mA
30
mV
10 percent to 90 percent
load change
3.0
%
IOUT = 0, inhibit (pin 1)
tied to input return (pin 7)
12
60
mA
IOUT =0, inhibit (pin 1) = open
IOUT = 1000mA
Input ripple
current3,4
Efficiency4
IRIP
B.W. = 20 Hz to 2 MHz
IOUT = 1000mA,
1,2,3
1,3
2
01
01
01
50
mA p-p
%
EFF
77
74
TC =+25°C
Input to output or any pin
to case (except pin 6) at
500V dc, TC = +25°C
No effect on dc
Isolation
ISO
CL
1
4
100
M
Ω
Capacitive load6,7
performance, TC = +25°C,
total for both outputs
01
200
µF
For Notes to Specifications, refer to page 11
10
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AHF28XX Series
AHF2812D
Table V. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
-55°C Tc +125°C
Group A
Subgroups
Device
Types
Limits
Unit
≤
≤
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Overload, TC = +25°C 8
Min
Max
Power dissipa-
tion load fault
PD
1,2,3
01
6
2
W
Short circuit, TC = +25°C
Switching
frequency4
Output response
to step transient
load changes4,9
FS
IOUT = 1000mA
500 mA to/from 1000mA
4,5,6
4,5,6
01
01
500
600
kHz
VOTLOAD
-200
-800
+200
+800
mV pk
0 mA to/from 500 mA
4,5,6
4,5,6
Recovery time
step transient load
changes4,9,10
500 mA to/from 1000mA
01
70
TTLOAD
VOTLINE
TTLINE
µs
mV pk
µs
0 mA to/from 500 mA
4,5,6
4,5,6
1000
+750
Output response
transient step line
changes4,7,11
Input step from/to 16 to
40 V dc, IOUT =1000mA
01
01
-750
Recovery time
transient step line
changes4,7,10,11
Input step from/to 16 to 40 V
dc, IOUT =1000mA
4,5,6
1200
Turn on
I
OUT =0 and 1000mA
4,5,6
4,5,6
01
01
600
25
mV pk
ms
overshoot4
Turn on delay4,12
VTonOS
TonD
IOUT = 0 and 1000mA
Load fault
recovery7
TrLF
4,5,6
01
25
38
ms
Weight
grams
Notes to Specifications
1. Parameter guaranteed by line load and cross regulation tests.
2. Up to 90 percent of full power is available from either output provided the total output does not exceed 12W.
3. Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
4. Load current split equally between +VOUT and –VOUT
.
5. 1.2 watt load on output under test, 1.2 watt to 10.8 watt load change on other output.
6. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive oad 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.
7. Parameter shall be tested as part of design characterization and after design or process changes.
Thereafter, parameters shall be guaranteed to the limits specified in Table V.
8. 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.
9. Load step transition time between 2 and 10 microseconds.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1
percent of VOUT at 50 percent load.
11. Input step transition time between 2 and 10 microseconds.
12. 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 1) while power is applied to the input.
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11
AHF28XX Series
Specifications
AHF2815D
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Soldering Temperature
Case Temperature
300°C for 10 seconds
Operating -55°C to +125°C
Storage -65°C to +135°C
Table VI. Electrical Performance Characteristics
Conditions
Test
Symbol
Group A
Subgroups
Device
Types
Limits
Max
Unit
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
≤
≤
Min
Output voltage
Output current1,2
VOUT
I
OUT = 0
1
2,3
01
01
01
01
01
01
01
±14.85 ±15.15
±14.70 ±15.30
V
mA
IOUT
VIN = 16, 28, and 40 V dc,
each output
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
80
720
60
Output ripple
voltage3
VRIP
V
IN = 16, 28, and 40 V dc,
mV p-p
mV
B.W. = 20 Hz to 2 MHz
Line regulation4
Load regulation4
Cross regulation5
Input current
VRLINE
VRLOAD
VRcros
IIN
V
IN = 16, 28, and 40 V dc,
35
Iout = 0, 400, and 800 mA
V
IN = 16, 28, and 40 V dc,
35
mV
IOUT = 0, 400, and 800 mA
10 percent to 90 percent
load change each output
3.0
%
IOUT = 0, inhibit (pin 1)
tied to input return (pin 7)
IOUT = 0,
12
55
mA
inhibit (pin 1) = open
Input ripple
current3,4
IRIP
EFF
ISO
CL
I
OUT = 800mA
1,2,3
01
01
01
01
50
mA p-p
%
B.W. = 20 Hz to 2 MHz
Efficiency4
IOUT = 800mA
1,3
2
78
75
Input to output or any pin
to case (except pin 6) at 500
V dc, TC = +25°C
No effect on dc
performance,
Isolation
1
4
100
M
Ω
Capacitive load6,7
200
µF
TC = +25°C, total for both
outputs
For Notes to Specifications, refer to page 13
12
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AHF28XX Series
AHF2815D
Table VI. Electrical Performance Characteristics - continued
Conditions
Test
Symbol
PD
Group A
Subgroups
Device
Types
Limits
Unit
W
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
≤
≤
Min
Max
Power dissipation
load fault
Overload 8
Short circuit
1,2,3
01
6
2
Switching
frequency4
FS
IOUT = 800 mA
4,5,6
01
500
600
kHz
Output response
to step transient
load changes4,9
VOTLOAD
400 mA to/from 800 mA
0 mA to/from 400 mA
4,5,6
4,5,6
01
01
-200
-800
+200
+800
mV pk
Recovery time
step transient load
changes4,9,10
TTLOAD
400 mA to/from 800 mA
0 mA to/from 400 mA
4,5,6
4,5,6
01
01
70
µs
500
Output response
transient step line
changes4,7,11
Input step from/to 16 to
40 V dc, IOUT=800mA
VOTLINE
4,5,6
4,5,6
01
01
-750
+750
1200
mV pk
µs
Recovery time
transient step line
changes4,7,10,11
Turn on
TTLINE
Input step from/to 16 to
40Vdc, IOUT =800mA
overshoot4
VTonOS
TonD
TrLF
IOUT=0 and 800mA
IOUT = 0 and 800mA
4,5,6
4,5,6
4,5,6
01
01
01
750
25
mV pk
ms
Turn on delay4,12
Load fault
recovery7
25
ms
Weight
38
grams
Notes to Specifications
1. Parameter guaranteed by line load and cross regulation tests.
2. Up to 90 percent of full power is available from either output provided the total output does not exceed 12W.
3. Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
4. Load current split equally between +VOUT and –VOUT
.
5. 1.2 watt load on output under test, 1.2 watt to 10.8 watt load change on other output.
6. 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.
7. Parameter shall be tested as part of design characterization and after design or process changes.
Thereafter, parameters shall be guaranteed to the limits specified in Table VI.
8. 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.
9. Load step transition time between 2 and 10 microseconds.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1
percent of VOUT at 50 percent load.
11. Input step transition time between 2 and 10 microseconds.
12. 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 1) while power is applied to the input.
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13
AHF28XX Series
AHF28XX ( Single Output ) Block Diagram
EM I
Filter
8
+Input
4
3
+Vout
Under-Voltage
Detector
Return
Primary
Housekeeping
Supply
1
Enable
6
Drive
Case
Pulse W idth
FB
Error
Am p &
Ref
M odulator
CS
Input
Return
7
AHF28XX ( Dual Output ) Block Diagram
EMI
Filter
8
+Input
2
3
4
+Vout
Return
-Vout
Under-Voltage
Detector
Primary
Housekeeping
Supply
1
Enable
Drive
6
Case
Pulse W idth
FB
Error
Amp &
Ref
Modulator
CS
Input
Return
7
14
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AHF28XX Series
Application Information
Inhibit Function
Connecting the enable input (Pin 1) 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 enable input is 15 ±1 VDC. If the inhibit
function is not used, this input can be left unconnected
because it is internally pulled-up.
Hence, if TAMBIENT = +25°C, the DC/DC converter case
temperature will be approximately 100°C if no heat sink
or air flow is provided.
To calculate the heat sink area required to maintain a
specific case temperature rise, the above equation may
be manipulated as follows:
Thermal Management
−1.43
∆Τ
A
=
Assuming that there is no forced air flow, the package tem-
perature rise above ambient (∆T) may be calculated using
the following expression:
− ΑPKG
HEAT SINK
Ρ 0.85
80
As an example, if a maximum case temperature rise of
50°C rise above ambient is desired, then the required
effective heat sink area is:
∆T ≈ 80 A –0.7p 0.85 (°C)
where A = the effective surface area in square inches (in-
cluding heat sink if used), P = power dissipation in watts.
−1.43
50
− 4.9 = 3.75in.2
The total surface area of the AHF package is 4.9 square
inches. If a worse case full load efficiency of 78% is as-
sumed, then the case temperature rise can be calculated
as follows:
ΑHEATSINK
=
80(3.4)0.85
1
1
P = P
−1 =12
−1 = 3.4W
OUT
Eff
0.78
∆T = 80 (4.9)-0.7 (3.4)0.85 = 74°C
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15
AHF28XX Series
AHF28XX Case Outlines
Non-Flanged
0.205
(5.21)
0.030 dia.,
(0.760)
8 pins
0.505
(12.83)
8
1
0.705
(17.91)
0.905
(22.99)
2
3
1.105
(28.07)
7
6
1.450
(36.83)
4
5
0.800
(20.32)
0.090
(2.290)
R Typ
0.260
(6.600)
1.120
(28.45)
0.330
(8.380)
M AX
Flanged
Pin Designation
Part Numbering
AHF 28 05 S F / CH
AHF28XXS
AHF28XXD
Designation
M odel
Input Voltage
Screening
Pin
No.
Designation
Pin
No.
– , ES, H B, CH
Package Options
= Flange
O m it for Standard
28
= 28V
Enable
F
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Enable
+ Output
Output Return
- Output
N/C
Output Voltage
Outputs
N/C
Output Return
+ Output
N/C
5
=
±5, 12
= ±15
= ±12,
S
D
=
=
Single
Dual
15
Case
Case
Input Return
+ Input
Input Return
+ Input
16
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AHF28XX Series
Available Screening Levels and ProcessVariations for AHF28XX Series
Requirement
MIL-STD-883
Method
No
Suffix
ES
Suffix
HB
Suffix
CH
Suffix
Temperature
Range
-20 to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
Element
MIL-PRF-38534
Evaluation
Internal Visual 2017
Yes
Yes
Yes
Temperature
Cycle
Constant
Acceleration
Burn-in
1010
2001
1015
Cond B
Cond C
Cond C
500g
Cond A
Cond A
48hrs @ 85°C
25°C
48hrs @ 125°C
25°C
160hrs @ 125°C
-55, +25, +125°C
160hrs @ 125°C
-55, +25, +125°C
Final Electrical MIL-PRF-
(Group A)
38534
1014
2009
Seal, Fine &
Gross
External
Visual
Cond A, C
Yes
Cond A, C
Yes
Cond A, C
Yes
* Per Commercial Standards
Available Standard Military Drawing (SMD) Cross Reference
Standardized
Military Drawing
Pin
Vendor
CAGE
Code
Vendor
Similar
Pin
5962-9160001
5962-9456801
5962-9456301
5962-9211101
5962-9235101
52467
52467
52467
52467
52467
AHF2805S/CH
AHF2812S/CH
AHF2815S/CH
AHF2812D/CH
AHF2815D/CH
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
ADVANCED ANALOG: 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. 10/02
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17
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