IRF AHE2815S/ES-MSTR Advanced analog hybrid-high reliability dc/dc converter Datasheet

PD - 94554A
AHE28XXS SERIES
ADVANCED ANALOG
HYBRID-HIGH RELIABILITY
DC/DC CONVERTERS
28V Input, Single Output
Description
The AHE28XXS Series of DC/DC converters feature
high power density and an extended temperature range
for use in military and industrial applications. Designed
to MIL-STD-704D input requirements, these devices
have nominal 28VDC inputs with +5V, +12V and +15V
single outputs to satisfy a wide range of requirements.
The circuit design incorporates a pulse width modulated push-pull topology operating in the feed-forward
mode at a nominal switching frequency of 250KHz.
Input to output isolation is achieved through the use of
transformers in the forward and feedback circuits.
The advanced feedback design provides fast loop response for superior line and load transient characteristics and offers greater reliability and radiation tolerance than devices incorporating optical feedback circuits.
Three standard temperature grades are offered with
screening options. Refer to Part Number section. They
can be provided in a standard plug-in package for PC
mounting or in a flanged package for more severe environments.
These converters are manufactured in a facility certified to MIL-PRF-38534. All processes used to manufacture these converters have been qualified to enable
Advanced Analog to deliver compliant devices.
Two screening grades are available to satisfy a wide
range of requirements. The CH grade converters are
fully compliant to MIL-PRF-38534 for class H. The HB
grade converters are processed to full class H screening but do not have class H element evaluation as required by MIL-PRF-38534. Both grades are fully tested
and operate over the full military temperature range
without derating of output power. Variations in electrical, mechanical and screening can be accommodated.
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AHE
Features
n 17 to 40 VDC Input Range (28 VDC Nominal)
n 5V, 12V and 15V Outputs Available
n Indefinite Short Circuit and Overload
Protection
3
n 17 W/in Power Density
n 15 and 20 Watts Output Power Models
n Fast Loop Response for Superior Transient
Characteristics
n Operating Temperature Range from -55°C to
+125°C Available
n Popular Industry Standard Pin-Out
n Resistance Seam Welded Case for Superior
Long Term Hermeticity
n Efficiencies up to 84%
n Shutdown from External Signal
n Military Screening
n 325,000 hour MTBF at 85°C (AUC)
Extensive computer simulation using complex
modeling enables rapid design modification to
be provided. Contact Advanced Analog with specific requirements.
1
10/28/02
AHE28XXS Series
Specifications
TCASE = -55°C to +85°C, VIN = +28V ± 5% unless otherwise specified
n ABSOLUTE MAXIMUM RATINGS
1
Input Voltage
Power Output
Soldering
1
Temperature Range
Parameter
-0.5V to 50V
Internally limited, 17.5W typical for AHE2805S, 22.5W typical for AHE2812S and AHE2815S
300°C for 10 seconds
Operating -55°C to +125°C case
Storage -65°C to +135°C
Conditions
-55°C ≤ Tc ≤ +85°C
Vin = 28 Vdc ±5%,CL = 0
Unless otherwise specified
AHE2805S
AHE2812S
AHE2815S
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Units
4.90
0.0
5.00
5.10
3000
60
11.76
0.0
12.00
15.00
30
12.24
1667
60
14.70
0.0
20
30
15.30
1333
60
VDC
mADC
mVp-p
5.00
5.05
11.88
20
12.00
12.12
14.85
20
15.00
15.15
VDC
W
±0.5
±0.5
±1.0
±1.0
±0.5
±0.5
±1.0
±1.0
±0.5
±0.5
±1.0
±1.0
%
%
28.0
8
40.0
18
35
50
28.0
8
40.0
18
35
50
28.0
8
40.0
18
35
50
VDC
mADC
mADC
mV p-p
Static Characteristic
OUTPUT
Voltage
Current
Ripple
Accuracy
1
Power
REGULATION
Line
Load
INPUT
4
Voltage Range
Current
Ripple Current
Efficiency
Capacitive Load
Load fault power
4
dissipation
Isolation
VIN=17 to 40 VDC
IOUT=0 to Full Load
Full Load, DC to 1MHz
TCASE = 25°C, IOUT = 0
4.95
15
VIN = 17 to 40 VDC
IOUT = to Full Load
17.0
Inhibited
No Load
Full Load
TCASE = +25°C
Half Load to Full Load
No effect on performance
20
80
500
82
2
Recovery
Step Line Changes
Output
Transient
2
Recovery
Turn-On
3
Overshoot Delay
25
79
200
83
6
17.0
25
80
200
84
6
%
µF
6
W
Input to Output @ 500Vdc
100
Dynamic
Characteristic
Step Load Changes
Output
Transient
17.0
100
100
MΩ
50% Load 100% Load
No Load 50% Load
50% Load No Load
50% Load 100% Load
No Load 50% Load
50% Load No Load
±150
-300
+300
25
500
7
±200
-400
+400
25
500
7
±200
-400
+400
25
500
7
mVpk
mVpk
mVpk
µsec
µsec
msec
Input step 17 to 40VDC
Input step 40 to 17VDC
Input step 17 to 40VDC
Input step 40 to 17VDC
VIN = 17 to 40VDC
IOUT = 0 to Full load
+180
-600
400
400
+180
-600
400
400
+180
-600
400
400
mVpk
mVpk
µsec
µsec
Load Fault
4
Recovery
VIN = 17 to 40VDC
0
8
8
Weight
Standard Package
Flange Package
55
58
500
14
14
300
8
8
55
58
600
14
14
300
8
8
500
14
14
mVpk
msec
msec
55
58
grams
grams
Notes to Specifications
1. Above +85°C case temperature, derate output power linearly to 0 and maximum input voltage linearly to 42V at 115°C case.
2. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of VOUT at 50% load.
See typical waveforms.
3. Turn-on delay time measurement is for either an application of power at the input or a signal at the shutdown pin.
4. For operation at 16VDC, derate output power by 33%.
2
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AHE28XXS Series
Specifications
TCASE = -55°C to +105°C, VIN = +28V ± 5% unless otherwise specified
n ABSOLUTE5MAXIMUM RATINGS
Input Voltage
Power Output
Soldering
1
Temperature Range
Parameter
-0.5V to 50V
Internally limited, 17.5W typical for AHE2805S/ES, 22.5W typical for AHE2812S/ES and AHE2815S/ES
300°C for 10 seconds
Operating -55°C to +125°C case
Storage -65°C to +135°C
Conditions
-55°C ≤ Tc ≤ +105°C
Vin = 28 Vdc ±5%,CL = 0
Unless otherwise specified
AHE2812S/ES
AHE2805S/ES
AHE2815S/ES
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Units
4.90
0.0
5.00
5.10
3000
60
11.76
0.0
12.00
15.00
30
12.24
1667
60
14.70
0.0
20
30
15.30
1333
60
VDC
mADC
mVp-p
5.00
5.05
11.88
20
12.00
12.12
14.85
20
15.00
15.15
VDC
W
±0.5
±0.5
±1.0
±1.0
±0.5
±0.5
±1.0
±1.0
±0.5
±0.5
±1.0
±1.0
%
%
28.0
8
40.0
18
35
50
28.0
8
40.0
18
35
50
28.0
8
40.0
18
35
50
VDC
mADC
mADC
mV p-p
Static Characteristic
OUTPUT
Voltage
Current
Ripple
VIN=17 to 40 VDC
IOUT=0 to Full Load
Full Load, DC to 1MHz
TCASE = 25°C, IOUT = 0
Accuracy
1
Power
REGULATION
Line
Load
INPUT
4
Voltage Range
Current
4.95
15
VIN = 17 to 40 VDC
IOUT = 0 to Full Load
17.0
Inhibited
No Load
Full Load
TCASE = +25°C
Half load to Full load
No effect on performance
Ripple Current
Efficiency
Capacitive Load
Load fault power
4
dissipation
Isolation
20
78
500
82
25
79
200
83
6
17.0
25
80
200
84
6
%
µF
6
W
Input to Output @ 500Vdc
100
Dynamic
Characteristic
Step Load Changes
Output
Transient
Recovery
17.0
2
100
100
MΩ
50% Load 100% Load
No Load 50% Load
50% Load No Load
50% Load 100% Load
No Load 50% Load
50% Load No Load
±150
-300
+300
25
500
7
±200
-400
+400
25
500
7
±200
-400
+400
25
500
7
mVpk
mVpk
mVpk
µsec
µsec
msec
Input step 17 to 40VDC
Input step 40 to 17VDC
Input step 17 to 40VDC
Input step 40 to 17VDC
+180
-600
400
400
+180
-600
400
400
+180
-600
400
400
mVpk
mVpk
µsec
µsec
Step Line Changes
Output
Transient
2
Recovery
TURN –ON
Overshoot
3
Delay
VIN = 17 to 40VDC
IOUT = 0 to Full Load
4
0
8
500
14
14
Load Fault Recovery
VIN = 17 to 40VDC
8
Weight
Standard Package
Flange Package
60
65
300
8
600
14
8
14
60
65
300
8
750
14
mVpk
msec
8
14
msec
60
65
grams
grams
Notes to Specifications
1.
2.
3.
4.
5.
Above +105°C case temperature, derate output power linearly to 0 at 125°C case.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of VOUT at 50% load.
See typical waveforms.
Turn-on delay time measurement is for either an application of power at the input or a signal at the shutdown pin.
For operation at 16VDC, derate output power by 33%.
Above +85°C case temperature, derate maximum input voltage linearly to 33V at +125°C case.
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3
AHE28XXS Series
Specifications
n ABSOLUTE 1MAXIMUM RATINGS
Input Voltage
Power Output
Soldering
1
Temp Range
Parameter
-0.5V to 50V
Internally limited, 17.5W typical for AHE2805S/HB&CH, 22.5W typical for AHE281XS/HB&CH
300°C for 10 seconds
Operating -55°C to +125°C case
Storage -65°C to +135°C
Conditions
-55°C ≤ Tc ≤ +125°C
Vin = 28 Vdc ±5%,CL = 0
Unless otherwise specified
AHE2805S/HB&CH
AHE2812S/HB&CH
AHE2815S/HB&CH
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Units
4.90
0.0
5.00
11.76
0.0
12.00
15.00
30
12.24
1667
60
14.70
0.0
20
5.10
3000
60
30
15.30
1333
60
VDC
mADC
mVp-p
4.95
15
5.00
5.05
11.88
20
12.00
12.12
14.85
20
15.00
15.15
VDC
W
35
mV
Static Characteristic
OUTPUT
Voltage
Current
Ripple
Accuracy
1
Power
REGULATION
Line
Load
INPUT
4
Voltage Range
Current
Ripple Current
Efficiency
Capacitive Load
Load fault power
5
dissipation
Isolation
Dynamic
Characteristic
Step Load Changes
Output TC =25°C
Transient
Recovery
2
Step Line Changes
Output TC = 25°C
Transient
2
Recovery
TURN –ON
Overshoot
3
Delay
4
Load Fault Recovery
Weight
VIN=17 to 40 VDC
IOUT=0 to Full Load
Full Load, DC to 1MHz
TCASE = 25°C, IOUT = 0
VIN = 17 to 40 VDC
TCASE = 25°C
IOUT = 0 to Full Load
5
10
17.0
Inhibited
No Load
Full Load
TCASE = +25°C
No effect on performance
Short Circuit TC =25°C
Overload TC = 25°C
Input to Output @ 500Vdc
80
500
28.0
8
20
82
1000
30
50
50
40.0
18
35
50
17.0
80
200
28.0
8
25
83
1000
4.5
6
100
120
50
40.0
18
35
50
17.0
80
200
28.0
8
25
84
1000
4.5
6
100
150
mV
40.0
18
35
50
VDC
mADC
mADC
mV p-p
%
µF
W
W
MΩ
4.5
6
100
50% Load 100% Load
No Load 50% Load
50% Load No Load
50% Load 100% Load
No Load 50% Load
50% Load No Load
±150
-300
+300
25
100
±300
-500
+500
70
200
5
±200
-400
+400
25
500
±300
-500
+500
70
1500
5
±200
-400
+400
25
500
±300
-500
+500
70
1500
5
mVpk
mVpk
mVpk
µsec
µsec
msec
Input step 17 to 40VDC
Input step 40 to 17VDC
Input step 17 to 40VDC
Input step 40 to 17VDC
+180
-600
400
400
+300
1000
800
800
+180
-600
400
400
+500
-1500
800
800
+180
-600
400
400
+500
-1500
800
800
mVpk
mVpk
µsec
µsec
0
8
8
55
58
550
10
10
300
8
8
55
58
600
10
10
300
8
8
500
10
10
55
58
mVpk
msec
msec
grams
grams
VIN = 17 to 40VDC
IOUT = 0 to Full Load
VIN = 17 to 40VDC
Standard Package
Flange Package
Notes to Specifications
1.
2.
Above +125°C case temperature, derate output power linearly to 0 at 135°C case.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of VOUT at 50% load.
See typical waveforms.
Turn-on delay time measurement is for either an application of power at the input or a signal at the shutdown pin.
For operation at 16VDC, derate output power by 33%.
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.
3.
4.
5.
4
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AHE28XXS Series
AHE28XXS Block Diagram
5 + V ou t
1
EMI
F ilter
+ Inp u t
4 R e tu rn
2
E n a ble
D rive 1
P u lse W id th
M o du lato r FB
9
S ync
E rror
Amp &
Ref
D rive 2
3
V ADJ
In p ut
R e tu rn
10
Application Information
Inhibit Function
Output Voltage Adjustment (AHE2805 only)
Connecting the inhibit input (Pin 2) to input common (Pin 10)
will cause the converter to shut down. It is recommended
that the inhibit pin be driven by an open collector device
capable of sinking at least 400µA of current. The open circuit voltage of the inhibit input is 11.5 ±1 VDC.
The output voltage of the AHE2805S converter can be
adjusted upward by connecting an appropriate resistor
between Output Adjust (Pin 3) and Output Common
(Pin 4) as shown in Table 1 below.
EMI Filter
An EMI filter (AFC461), available as an option, will reduce
the input ripple current to levels below the limits imposed by
MIL-STD-461B CEO.
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Table 1 Output adjustment resistor values
Resistance Pin 3 to 4 (Ω)
None
390K
145K
63K
22K
0
Output Voltage Increases (%)
0
+1%
+2%
+3%
+4%
+5%
5
AHE28XXS Series
Device Synchronization
Whenever multiple DC/DC converters are utilized in a single
system, significant low frequency noise may be generated due to slight difference in the switching frequencies
of the converters (beat frequency noise). Because of the
low frequency nature of this noise (typically less than
10KHz), it is difficult to filter out and may interfere with
proper operation of sensitive systems (communications,
radar or telemetry). Advanced Analog offers an option,
which provides synchronization of multiple AHE/ATW/ATO
type converters, thus eliminating this type of noise.
To take advantage of this capability, the system designer
must assign one of the converters as the master. Then, by
definition, the remaining converters become slaves and
will operate at the masters’ switching frequency.
The user should be aware that the synchronization system is fail-safe; that is, the slaves will continue operating
should the master frequency be interrupted for any reason. The layout must be such that the synchronization
output (pin 9) of the master device is connected to the
synchronization input (pin 9) of each slave device. It is
advisable to keep this run short to minimize the possibility
of radiating the 250KHz switching frequency.
The appropriate parts must be ordered to utilize this feature. After selecting the converters required for the system, a MSTR suffix is added for the master converter part
number and a SLV suffix is added for slave part number.
See Part Number section.
Typical Synchronization Connection
+ In
R e tu rn
A FC 461
or
A FV 461
O utput
+ In
C a se
R e tu rn
O utput
A H E 28xxS
- M S TR
R e tu rn
R e tu rn
M ST R
+O utpu t
+ In
C a se
S ystem
B us
A H E 28xxD
-S LV
R e tu rn
-O utput
R e tu rn
SL V
+ In
C a se
O utput
A H E 28xxS
-S LV
R e tu rn
R e tu rn
SL V
6
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AHE28XXS Series
AHE28XXS Case Outlines
Non-Flanged
Flanged
0.050
0.800
1.110
10
8
7
6
5
0.495
M ax
4
4 X 0.400
=1.600
3
2.110
M ax
2
2.560
1
2.880
M ax
9
0.040 D X
0.26 L Pins
0.495
Ø 0.162
2 H oles
Part Numbering
Pin Designation
Pin No.
2.110
AHE 28 05 S F / CH - M STR
Designation
S ync O ptio n
M ode l
1
Positive Input
2
Enable Input
3
Output Adjust *
4
Output Return
5
Positive Output
6
N/C
7
N/C
8
Case Ground
9
N/C or Sync.
10
Input Return
M S TR = M a ster
SL V = S la ve
Input V oltage
S cree nin g
28 = 28V
–
O utput V oltage
5 = ±5, 1 2 = ±12,
15 = ±15
, ES, H B, CH
P ackag e O ption s
O utputs
S = S ing le
D = D ual
F = F la nge
O m it fo r S tan dard
* AHE2805S only. AHE2812S / 2815S have N/C on Pin 3
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7
AHE28XXS Series
Available Screening Levels and Process Variations for AHE28XXS Series
Requirement
Temperature
Range
Element
Evaluation
Internal Visual
Temperature
Cycle
Constant
Acceleration
Burn-in
Final Electrical
(Group A)
Seal, Fine &
Gross
External
Visual
MIL-STD-883
Method
No
Suffix
-20 to +85°C
ES
Suffix
-55°C to +125°C
HB
Suffix
-55°C to +125°C
CH
Suffix
-55°C to +125°C
MIL-PRF-38534
2017
1010
∗
2001
Yes
Cond B
Yes
Cond C
Yes
Cond C
500g
Cond A
Cond A
1015
MIL-PRF38534 &
Specifications
1014
48hrs @ 85°C
25°C
48hrs @ 125°C
25°C
160hrs @ 125°C
-55, +25, +125°C
160hrs @ 125°C
-55, +25, +125°C
Cond C
Cond A, C
Cond A, C
Cond A, C
2009
∗
Yes
Yes
Yes
* Per Commercial Standards
Available Standard Military Drawing (SMD) Cross Reference
Standard
Military Drawing
PIN
5962-8968301HXX
5962-8968301HZX
5962-8968302HXX
5962-8968302HZX
5962-8968303HXX
5962-8968303HZX
Vendor
CAGE
Code
52467
52467
52467
52467
52467
52467
Vendor
Similar
PIN
AHE2805S/CH
AHE2805SF/CH
AHE2805S/CH-SLV
AHE2805SF/CHSLV
AHE2805S/CH-MSTR
AHE2805SF/CH-MSTR
Standard
Military Drawing
PIN
5962-9162501HXX
5962-9162501HZX
5962-9162502HXX
5962-9162502HZX
5962-9162503HXX
5962-9162503HZX
Vendor
CAGE
Code
52467
52467
52467
52467
52467
52467
Vendor
Similar
PIN
AHE2815S/CH
AHE2815SF/CH
AHE2815S/CH-SLV
AHE2815SF/CH-SLV
AHE2815S/CH-MSTR
AHE2815SF/CH-MSTR
Standard
Military Drawing
PIN
5962-9158001HXX
5962-9158001HZX
5962-9158002HXX
5962-9158002HZX
5962-9158003HXX
5962-9158003HZX
Vendor
CAGE
Code
52467
52467
52467
52467
52467
52467
Vendor
Similar
PIN
AHE2812S/CH
AHE2812SF/CH
AHE2812S/CH-SLV
AHE2812SF/CH-SLV
AHE2812S/CH-MSTR
AHE2812SF/CH-MSTR
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
8
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