AHF2803DF/HB [INFINEON]
HYBRID-HIGH RELIABILITY DC-DC CONVERTER; 混合高可靠性DC- DC转换器
| 型号： | AHF2803DF/HB |
| 厂家： | 
Infineon |
| 描述： | HYBRID-HIGH RELIABILITY DC-DC CONVERTER |
| 文件： | 总19页 (文件大小：226K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-94541D
AHF28XX SERIES
28V Input, Single and Dual Output
HYBRID-HIGH RELIABILITY
DC-DC CONVERTER
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
requirements of MIL-STD-704D. The basic circuit
utilizes a pulse width modulated, feed-forward topology
at a nominal switching frequency of 550KHz. Input to
output isolation is achieved through the use of
transformers in the forward and feedback circuits.
AHF
Features
n 16V to 40VDC Input Range (28 VDC Nominal)
n Single and Dual Outputs
n 12W Output Power
n 22.8W/in3 Power Density
n Low Input / Output Noise
(50mA/60mVp-p max. respectively)
n Indefinite Short Circuit and Overload Protection
n Wideband Control Loop for Superior Transient
Characterstics
n No derating for -55°C to +125°C Operation
n Constant Switching Frequency (550KHz Nominal)
n Standard Microcircuit Drawings Available
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 characteristics.
This feedback method is also inherently temperature
and radiation insensitive. This gives the AHF Series
an important advantage over converters that incorporate
opto-couplers in their design.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DSCC
qualified processes. For available screening options,
refer to device screening table in the data sheet.
Variations are electrical, mechanical and screening
can be accommodated.
Extensive computer simulation using complex modeling
enables rapid design modification to be provided.
Contact IR San Jose with specific requirements.
www.irf.com
1
03/09/10
AHF28XX Series
Specifications
AHF2803R3S
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table I. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
3.34
3.36
3000
1
3.26
3.23
VOUT IOUT = 0
Output voltage
01
01
01
V
2,3
Output current1
IOUT
VRIP
VIN = 16, 28, and 40Vdc
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
1,2,3
mA
V
Output ripple voltage2
1,2,3
60
mV p-p
V
Line regulation
Load regulation
VRLINE Iout = 0%, 50% and 100%
rated load
1,2,3
01
01
25
mV
mV
VIN = 16, 28, and 40Vdc,
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
50
I
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
12
30
50
IIN
Input current
1,2,3
1,2,3
01
mA
I
I
Input ripple current2
Efficiency
IRIP
EFF
01
01
mA p-p
%
B.W. = 20 Hz to 2.0MHz
1
72
70
IOUT = 100% rated load
2,3
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C
Isolation
ISO
CL
1
4
01
100
MΩ
Capacitive load3, 4
01
500
µF
Overload 5
Short circuit
Power dissipation
load fault
1
01
01
01
6.0
2.0
600
PD
FS
W
1,2,3
4,5,6
Switching frequency
IOUT = 100% rated load
500
KHz
For Notes to Specifications, refer to page 3
2
www.irf.com
AHF28XX Series
AHF2803R3S
Table I. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
50% to/from 100%
rated load
4,5,6
4,5,6
-300
-500
+300
Output response to
step transient load
changes6
VOTLOAD
01
mVpk
0% to/from 50%
+500
rated load
50% to/from 100% rated load
0% to/from 50% rated load
50% to/from 0% rated load
Input step 16V to/from
40Vdc, IOUT = 100%
4,5,6
4,5,6
4,5,6
70
1200
8.0
µs
µs
ms
Recovery time step
transient load
TTLOAD
VOTLINE
TTLINE
01
01
01
changes6, 7
Output response to
transient step line
changes
4,5,6
4,5,6
500
800
mVpk
µs
rated load 4, 8
Input step 16V to/from
40Vdc, IOUT = 100%
rated load 4, 7, 8
Recovery time
transient step line
changes
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
Turn on overshoot
Turn on delay
Load fault
recovery4, 9
4,5,6
4,5,6
01
01
600
20
mVpk
ms
TrLF
4,5,6
01
20
38
ms
g
Weight
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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 2.0µs and 10µs.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
8. Input step transition time between 2.0µs and 10µs.
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
AHF2805S
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table II. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
1
4.95
4.90
5.05
V
VOUT IOUT = 0
Output voltage
01
01
01
2,3
5.10
Output current1
IOUT
VRIP
VIN = 16, 28, and 40Vdc
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
1,2,3
2400
60
mA
V
Output ripple voltage2
1,2,3
mV p-p
V
Line regulation
Load regulation
VRLINE Iout = 0%, 50% and 100%
rated load
1,2,3
01
01
25
50
mV
mV
VIN = 16, 28, and 40Vdc,
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
I
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
12
30
50
IIN
Input current
1,2,3
1,2,3
01
mA
I
I
Input ripple current2
Efficiency
IRIP
EFF
01
01
mA p-p
%
B.W. = 20 Hz to 2.0MHz
1
76
74
IOUT = 100% rated load
2,3
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C
Isolation
ISO
CL
1
4
01
100
MΩ
Capacitive load3, 4
01
500
µF
Overload 5
Short circuit
Power dissipation
load fault
1
01
01
01
6.0
2.0
600
PD
FS
W
1,2,3
4,5,6
Switching frequency
IOUT = 100% rated load
500
KHz
For Notes to Specifications, refer to page 5
4
www.irf.com
AHF28XX Series
AHF2805S
Table II. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
50% to/from 100%
rated load
4,5,6
4,5,6
-300
-500
+300
Output response to
step transient load
changes6
VOTLOAD
01
mVpk
0% to/from 50%
+500
rated load
50% to/from 100% rated load
0% to/from 50% rated load
50% to/from 0% rated load
Input step 16V to/from
40Vdc, IOUT = 100%
4,5,6
4,5,6
4,5,6
70
1200
8.0
µs
µs
ms
Recovery time step
transient load
TTLOAD
VOTLINE
TTLINE
01
01
01
changes6, 7
Output response to
transient step line
changes
4,5,6
4,5,6
500
800
mVpk
µs
rated load 4, 8
Input step 16V to/from
40Vdc, IOUT = 100%
rated load 4, 7, 8
Recovery time
transient step line
changes
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
Turn on overshoot
Turn on delay
Load fault
recovery4, 9
4,5,6
4,5,6
01
01
600
20
mVpk
ms
TrLF
4,5,6
01
20
38
ms
g
Weight
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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 2.0µs and 10µs.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
8. Input step transition time between 2.0µs and 10µs.
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
5
AHF28XX Series
Specifications
AHF2812S
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table III. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
1
11.88
11.76
12.12
12.24
1000
VOUT IOUT = 0
Output voltage
01
01
01
V
2,3
Output current1
IOUT
VRIP
VIN = 16, 28, and 40Vdc
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
1,2,3
mA
V
Output ripple voltage2
1,2,3
60
mV p-p
V
Line regulation
Load regulation
VRLINE Iout = 0%, 50% and 100%
rated load
1,2,3
01
01
50
mV
mV
V
IN = 16, 28, and 40Vdc,
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
50
I
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
12
50
50
IIN
Input current
1,2,3
1,2,3
01
mA
I
I
Input ripple current2
Efficiency
IRIP
EFF
01
01
mA p-p
%
B.W. = 20 Hz to 2.0MHz
1
78
75
IOUT = 100% rated load
2,3
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C
Isolation
ISO
CL
1
4
01
100
MΩ
Capacitive load3, 4
01
500
µF
Overload 5
Short circuit
Power dissipation
load fault
1
01
01
01
6.0
2.0
600
PD
FS
W
1,2,3
4,5,6
Switching frequency
IOUT = 100% rated load
500
KHz
For Notes to Specifications, refer to page 7
6
www.irf.com
AHF28XX Series
AHF2812S
Table III. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
+300
+450
+500
+750
100
50% to/from 100%
rated load
4
-300
-450
-500
-750
Output response to
step transient load
changes6
5,6
VOTLOAD
01
mVpk
0% to/from 50%
4
rated load
5,6
50% to/from 100% rated load
0% to/from 50% rated load
50% to/from 0% rated load
Input step 16V to/from
40Vdc, IOUT = 100%
4,5,6
4,5,6
4,5,6
µs
µs
ms
Recovery time step
transient load
changes6, 7
TTLOAD
VOTLINE
TTLINE
01
01
01
1500
10
Output response to
transient step line
changes
4,5,6
4,5,6
1500
800
mVpk
µs
rated load 4, 8
Input step 16V to/from
40Vdc, IOUT = 100%
rated load 4, 7, 8
Recovery time
transient step line
changes
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
Turn on overshoot
Turn on delay
Load fault
recovery4, 9
4,5,6
4,5,6
01
01
600
20
mVpk
ms
TrLF
4,5,6
01
20
38
ms
g
Weight
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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 2.0µs and 10µs.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
8. Input step transition time between 2.0µs and 10µs.
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
7
AHF28XX Series
Specifications
AHF2815S
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table IV. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
1
14.85
14.70
15.15
15.30
800
VOUT IOUT = 0
Output voltage
All
All
All
V
2,3
Output current1
IOUT
VRIP
VIN = 16, 28, and 40Vdc
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
1,2,3
mA
V
Output ripple voltage2
1,2,3
50
mV p-p
V
1
±35
±75
Line regulation
Load regulation
VRLINE Iout = 0%, 50% and 100%
rated load
All
All
mV
mV
2,3
VIN = 16, 28, and 40Vdc,
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
±150
I
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
18
50
20
IIN
Input current
1,2,3
1,2,3
All
mA
I
I
Input ripple current2
Efficiency
IRIP
EFF
All
All
mA p-p
%
B.W. = 20 Hz to 2.0MHz
1
80
77
IOUT = 100% rated load
2,3
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C
Overload 5
Short circuit
Isolation
ISO
1
4
All
All
100
MΩ
Capacitive load3, 4
CL
PD
200
µF
W
Power dissipation
load fault
1
All
6.0
2.0
1,2,3
All
01, 04
02, 05
03, 06
250
250
275
300
270
300
Switching frequency
FS
IOUT = 100% rated load
4,5,6
KHz
For Notes to Specifications, refer to page 9
8
www.irf.com
AHF28XX Series
AHF2815S
Table IV. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
50% to/from 100%
rated load
4,5,6
4,5,6
-800
+800
Output response to
step transient load
VOTLOAD
All
All
mVpk
0% to/from 50%
rated load
changes6
-1000
+750
4
100
200
5.0
10
50% to/from 100% rated load
0% to/from 50% rated load
µs
Recovery time step
transient load
changes6, 7
TTLOAD
5,6
4
ms
5,6
Input step 16V to/from
40Vdc, IOUT = 100%
rated load 4, 8
04
05
06
Output response to
transient step line
changes
VOTLINE
4,5,6
4,5,6
-1000
+1000
500
mVpk
µs
Input step 16V to/from
Recovery time
transient step line
changes
TTLINE
40Vdc, IOUT = 100%
rated load 4, 7, 8
01
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
Turn on overshoot
Turn on delay
Load fault
recovery4, 9
Weight
4,5,6
4,5,6
All
All
750
12
mVpk
ms
TrLF
4,5,6
All
12
38
ms
g
Notes to Specifications
1. Parameter guaranteed by line and load regulation tests.
2. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.
3. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance.
A capacitive 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 2.0µs and 10µs.
7. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
8. Input step transition time between 2.0µs and 10µs.
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
9
AHF28XX Series
Specifications
AHF2805D
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table V. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
±5.05
±5.10
1
±4.95
±4.90
VOUT IOUT = 0
Output voltage
01
01
01
V
A
2,3
V
IN = 16, 28, and 40Vdc
Output current1, 2
Output ripple voltage3
IOUT
VRIP
1,2,3
1,2,3
0.12
1.08
60
each output
V
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
mV p-p
V
Line regulation4
VRLINE Iout = 0%, 50% and 100%
rated load
1,2,3
01
30
30
mV
V
IN = 16, 28, and 40Vdc,
Load regulation4
Cross regulation5
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
1,2,3
01
01
mV
%
VRCROSS
±10
12
10% to 90% load changes
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
B.W. = 20 Hz to 2.0MHz
OUT = 100% rated load,
I
IIN
Input current
1,2,3
01
mA
I
60
50
I
Input ripple current3, 4
Efficiency4
IRIP
EFF
1,2,3
01
01
mA p-p
%
1,3
2
75
72
I
Tc = +25°C,
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C,
Isolation
ISO
CL
1
4
01
01
100
Ω
M
Capacitive load6, 7
200
µF
total for both outputs
Overload, Tc = +25°C
Short circuit, Tc = +25°C
IOUT = 100% rated load
Power dissipation
load fault
6.0
2.0
PD
FS
1,2,3
4,5,6
01
01
W
Switching frequency
500
600
KHz
For Notes to Specifications, refer to page 11
10
www.irf.com
AHF28XX Series
AHF2805D
Table V. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
50% to/from 100%
rated load
4,5,6
4,5,6
4,5,6
4,5,6
-400
-800
+400
Output response to
step transient load
VOTLOAD
01
01
mVpk
µs
0% to/from 50%
rated load
changes4, 9
+800
70
50% to/from 100% rated load
0% to/from 50% rated load
Recovery time step
transient load
changes4, 9,10
TTLOAD
100
Input step 16V to/from
40Vdc, IOUT = 100%
rated load
Output response to
transient step line
VOTLINE
4,5,6
4,5,6
01
01
-400
+400
1200
mVpk
µs
changes 4, 7, 11
Input step 16V to/from
40Vdc, IOUT = 100%
Recovery time
transient step line
changes4, 7, 10, 11
TTLINE
rated load
Turn on overshoot4
Turn on delay
Load fault
recovery4, 9
Weight
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
4,5,6
4,5,6
01
01
600
25
mVpk
ms
TrLF
4,5,6
01
25
38
ms
g
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 20KHz to 2.0MHz.
4. Load current split equally between +VOUT and –VOUT
.
5. 1.2 watt load on output under test, 1.2W to 10.8W 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 2.0µs and 10µs.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
11. Input step transition time between 2.0µs and 10µs.
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
11
AHF28XX Series
Specifications
AHF2812D
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table VI. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
1
±11.88 ±12.12
±11.76 ±12.24
VOUT IOUT = 0
Output voltage
01
01
01
V
2,3
V
IN = 16, 28, and 40Vdc
Output current1, 2
Output ripple voltage3
IOUT
VRIP
1,2,3
1,2,3
100
900
60
mA
each output
V
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
mV p-p
V
Line regulation4
VRLINE Iout = 0%, 50% and 100%
rated load
1,2,3
01
30
30
mV
V
IN = 16, 28, and 40Vdc,
Load regulation4
Cross regulation5
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
1,2,3
01
01
mV
%
VRCROSS
3.0
12
10% to 90% load changes
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
B.W. = 20 Hz to 2.0MHz
OUT = 100% rated load,
I
IIN
Input current
1,2,3
01
mA
I
60
50
I
Input ripple current3, 4
Efficiency4
IRIP
EFF
1,2,3
01
01
mA p-p
%
1,3
2
77
74
I
Tc = +25°C
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C,
Isolation
ISO
CL
1
4
01
01
100
Ω
M
Capacitive load6, 7
200
µF
total for both outputs
Overload, Tc = +25°C
Short circuit, Tc = +25°C
IOUT = 100% rated load
Power dissipation
load fault
6.0
2.0
PD
FS
1,2,3
4,5,6
01
01
W
Switching frequency
500
600
KHz
For Notes to Specifications, refer to page 13
12
www.irf.com
AHF28XX Series
AHF2812D
Table VI. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
50% to/from 100%
rated load
4,5,6
4,5,6
4,5,6
4,5,6
-200
-800
+200
Output response to
step transient load
VOTLOAD
01
01
mVpk
µs
0% to/from 50%
rated load
changes4, 9
+800
70
50% to/from 100% rated load
0% to/from 50% rated load
Recovery time step
transient load
changes4, 9,10
TTLOAD
1000
Input step 16V to/from
40Vdc, IOUT = 100%
rated load
Output response to
transient step line
VOTLINE
4,5,6
4,5,6
01
01
-750
+750
1200
mVpk
µs
changes 4, 7, 11
Input step 16V to/from
40Vdc, IOUT = 100%
Recovery time
transient step line
changes4, 7, 10, 11
TTLINE
rated load
Turn on overshoot4
Turn on delay
Load fault
recovery4, 9
Weight
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
4,5,6
4,5,6
01
01
600
25
mVpk
ms
TrLF
4,5,6
01
25
38
ms
g
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 20KHz to 2.0MHz.
4. Load current split equally between +VOUT and –VOUT
.
5. 1.2 watt load on output under test, 1.2W to 10.8W 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 2.0µs and 10µs.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
11. Input step transition time between 2.0µs and 10µs.
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
13
AHF28XX Series
Specifications
AHF2815D
Absolute Maximum Ratings
Input voltage
-0.5V to +50V
Soldering temperature
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Operating case temperature
Storage case temperature
Table VII. Electrical Performance Characteristics
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
1
±14.85 ±15.15
±14.70 ±15.30
VOUT IOUT = 0
Output voltage
01
01
01
V
2,3
V
IN = 16, 28, and 40Vdc
Output current1, 2
Output ripple voltage3
IOUT
VRIP
1,2,3
1,2,3
80
720
60
mA
each output
V
IN = 16, 28, and 40Vdc,
B.W. = 20 Hz to 2MHz
IN = 16, 28, and 40Vdc,
mV p-p
V
Line regulation4
VRLINE Iout = 0%, 50% and 100%
rated load
1,2,3
01
35
35
mV
V
IN = 16, 28, and 40Vdc,
Load regulation4
Cross regulation5
VRLOAD IOUT = 0%, 50% and 100%
rated load
1,2,3
1,2,3
01
01
mV
%
VRCROSS
3.0
12
10% to 90% load changes
OUT = 0, inhibit (pin 1)
tied to input return (pin 7)
OUT = 0,
inhibit (pin 1) = open
OUT = 100% rated load
B.W. = 20 Hz to 2.0MHz
I
IIN
Input current
1,2,3
01
mA
I
55
50
I
Input ripple current3, 4
Efficiency4
IRIP
EFF
1,2,3
01
01
mA p-p
%
1,3
2
78
75
I
OUT = 100% rated load,
Tc = +25°C
Input to output or any pin
to case (except pin 6)
at 500Vdc, Tc = +25°C
No effect on dc performance,
Tc = +25°C,
Isolation
ISO
CL
1
4
01
01
100
Ω
M
Capacitive load6, 7
200
µF
total for both outputs
Overload, Tc = +25°C
Short circuit, Tc = +25°C
IOUT = 100% rated load
Power dissipation
load fault
Switching frequency4
6.0
2.5
PD
FS
1,2,3
4,5,6
01
01
W
500
600
KHz
For Notes to Specifications, refer to page 15
14
www.irf.com
AHF28XX Series
AHF2815D
Table VII. Electrical Performance Characteristics - continued
Test
Symbol
Conditions
Group A
Device
Types
Limits
Unit
Subgroups
-55°C ≤ Tc ≤ +125°C
Vin = 28Vdc ±5%, CL = 0
Unless otherwise specified
Min
Max
50% to/from 100%
rated load
4,5,6
4,5,6
4,5,6
4,5,6
-200
-800
+200
Output response to
step transient load
VOTLOAD
01
01
mVpk
µs
0% to/from 50%
rated load
changes4, 9
+800
70
50% to/from 100% rated load
0% to/from 50% rated load
Recovery time step
transient load
changes4, 9,10
TTLOAD
500
Input step 16V to/from
40Vdc, IOUT = 100%
rated load
Output response to
transient step line
VOTLINE
4,5,6
4,5,6
01
01
-750
+750
1200
mVpk
µs
changes 4, 7, 11
Input step 16V to/from
40Vdc, IOUT = 100%
Recovery time
transient step line
changes4, 7, 10, 11
TTLINE
rated load
Turn on overshoot4
Turn on delay
Load fault
recovery4, 9
Weight
IOUT = o and 100% rated load
IOUT = o and 100% rated load9
VTonOS
TonD
4,5,6
4,5,6
01
01
750
25
mVpk
ms
TrLF
4,5,6
01
25
38
ms
g
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 20KHz to 2.0MHz.
4. Load current split equally between +VOUT and –VOUT
.
5. 1.2 watt load on output under test, 1.2W to 10.8W 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 2.0µs and 10µs.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0
percent of VOUT at 50 percent load.
11. Input step transition time between 2.0µs and 10µs.
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
15
AHF28XX Series
Application Information
Inhibit Function (Enable)
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 400µA of current. The open
circuit voltage of the enable input is 15 ± 1.0VDC. 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
⎡ ∆Τ ⎤−1.43
A HEAT SINK
=
Assuming that there is no forced air flow, the package
temperature rise above ambient (∆T) may be calculated
using the following expression:
− ΑPKG
⎢
⎥
0.85
80Ρ
⎣
⎦
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
(including 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 assumed,
then the case temperature rise can be calculated as follows:
ΑHEATSINK
=
0.85
⎢
⎥
80(3.4)
⎣
⎦
⎡
⎤
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
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
Drawing Number
5962-91600
Vendor Cage
Code
IR Standard
Part Number
AHF2805S
AHF2812S
AHF2815S
AHF2805D
AHF2812D
AHF2815D
52467
52467
52467
52467
5962-94568
5962-94563
5962-05205
52467
5962-92111
5962-92351
52467
16
www.irf.com
AHF28XX Series
( Single Output ) Block Diagram
EMI
Filter
8
+Input
4
3
+Vout
Under-Voltage
Detector
Output
Return
Primary
Housekeeping
Supply
1
Enable Input
6
Drive
Case
Pulse Width
FB
Error
Amp &
Ref
Modulator
CS
Input Return
7
( Dual Output ) Block Diagram
EMI
Filter
8
+Input
2
3
4
+Vout
Under-Voltage
Detector
Output
Return
Primary
Housekeeping
Supply
1
-Vout
Enable Input
Drive
6
Case
Pulse Width
FB
Error
Amp &
Ref
Modulator
CS
Input Return
7
www.irf.com
17
AHF28XX Series
Mechanical Outlines
Non-Flanged
0.205
(5.21)
0.030 dia., 8 pins
(0.760)
0.505
(12.83)
8
1
0.705
(17.91)
0.905
(22.99)
2
3
4
5
1.105
(28.07)
7
6
1.450
(36.83)
0.800
(20.32)
0.090 R Typ
(2.290)
0.260
(6.600)
1.120
(28.45)
0.330
(8.380)
MAX
Flanged
Pin Designation
Single Output
Pin #
Dual Output
1
2
3
4
5
6
7
8
Enable Input
NC
Enable Input
+ Output
Output Return
- Output
Output Return
+ Output
NC
NC
Case
Case
Input Return
+Input
Input Return
+Input
18
www.irf.com
AHF28XX Series
Device Screening
Requirement
MIL-STD-883 Method No Suffix
ES
HB
CH
Temperature Range
Element Evaluation
Non-Destructive
Bond Pull
-20°C to +85°C -55°C to +125°C
-55°C to +125°C -55°C to +125°C
MIL-PRF-38534
2023
N/A
N/A
N/A
Class H
N/A
N/A
N/A
N/A
Internal Visual
Temperature Cycle
Constant Acceleration
PIND
2017
1010
Yes
Cond B
500 Gs
N/A
Yes
Cond C
3000 Gs
N/A
Yes
Cond C
3000 Gs
N/A
N/A
N/A
2001, Y1 Axis
2020
N/A
Burn-In
1015
N/A
48 hrs@hi temp 160 hrs@125°C 160 hrs@125°C
Final Electrical
( Group A )
MIL-PRF-38534
& Specification
MIL-PRF-38534
1014
25°C
25°C
-55°C, +25°C,
+125°C
N/A
-55°C, +25°C,
+125°C
10%
PDA
N/A
Cond A
N/A
N/A
Cond A, C
N/A
Seal, Fine and Gross
Radiographic
External Visual
Notes:
Cond A, C
N/A
Cond A, C
N/A
2012
2009
Yes
Yes
Yes
Best commercial practice
Sample tests at low and high temperatures
-55°C to +105°C for AHE, ATO, ATW
Part Numbering
AHF 28 05 S F /CH
Model
Screening Level
(Please refer to Screening Table)
No Suffix, ES, HB, CH
Input Voltage
Nominal
28 = 28V
Package Style
F = Flange
Blank = Non-Flanged
Output Voltage
Single – 03R3 = 3.3V
05 = 5V
Output
S = Single
D = Dual
12 =12V
15 =15V
Dual – 05 = ±5V
12 = ±12V
15 = ±15V
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. 03/2010
www.irf.com
19
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