ASA2805S-ES [INFINEON]
ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS; 先进的模拟高可靠性混合DC / DC转换器
| 型号： | ASA2805S-ES |
| 厂家： | 
Infineon |
| 描述： | ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS |
| 文件： | 总4页 (文件大小：39K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD - 94539
ASA28XXS SERIES
28V Input, Single Output
ADVANCED ANALOG
HIGH RELIABILITY
HYBRID DC/DC CONVERTERS
Description
The ASA28XXS Series of DC/DC converters are high
reliability thick film hybrid converters that use flyback
topology operating at a nominal frequency of 550Khz.
High input to output isolation is achieved through the
use of transformers in the flyback power and feedback
circuits.
ASA
Features
The advanced feedback design provides fast loop re-
sponse for superior line and load transient characteris-
tics and offers greater reliability than devices incorpo-
rating optical feedback circuits.
n Up To 5 Watt Output Power
n 5, 12,15 Volt Outputs
n High Reliability
n Wide Input Voltage Range -16 To 40 Volts
n Indefinite Short Circuit and Overload
Protection
n Popular Industry Standard Pin-Out
n Military Screening Available
n Parallel Seam Welded Package
n No External Capacitors Required
n Input Voltage Surge Protected to
MIL-STD-704A
This device is designed to meet MIL-STD-704D input
requirements offering full performance over a 16 to 40
volt input range. Output Power of up to 5 watts is avail-
able.
Connecting the inhibit pin (pin 5) to the input common
(pin 7) will cause the converter to shut down. It is rec-
ommended that the inhibit pin be driven by an open
collector device capable of sinking at least 400µA. The
open circuit voltage of the inhibit pin is 11.5 ±0.5 volts.
n Under Voltage Lockout
n Available as Standard Military Drawing
These converters are manufactured in a facility fully
qualified to MIL-PRF-38534. All processes used to
manufacture these converters have been qualified
thereby enabling Advanced Analog to deliver fully com-
pliant devices. Three standard temperature grades are
offered with the screening options. Refer to Screening
Level section. The CH grade converters are fully com-
pliant to MIL-PRF-38534 for class H. The HB grade
converters are processed with the same screening as
the CH grade, but do not have class H element evalua-
tion as required by MIL-PRF-38534. These two grades
are fully tested and operate over the full military tem-
perature range without derating of output power. A
commercial grade is also available. Variations in elec-
trical, mechanical and screening requirements can be
accommodated. Extensive computer simulation using
complex modeling allows design modifications
to be examined. Contact Advanced Analog with
specific requirements.
www.irf.com
1
09/11/02
ASA28XXS Series
Specifications
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Power Output
-0.5 V to 50 V Continuous. 80 V, 100 mSec
Internally limited (6.5 Wtypical)
300°C for 10 Sec.
Soldering
Temperature Range
Operating -55°C to +125°C Case
Storage
-65°C to +150°C
Conditions
ASA2805S/xx
ASA2812S/xx
ASA2815S/xx
-55° ≤ TC ≤+125°C
IN = 28V dc ±5% CL = 0
unless otherwise specified
Group A
Subgroups
V
Min
Max
Min
Max
Min
Max
TEST
Unit
V
1
4.95
4.90
5.05
5.10
11.88
11.76
12.12
12.24
14.85
14.70
15.15
15.30
Output voltage
IOUT = 0
2, 3
1
V
IN = 16, 28, and 40 V dc
IN = 16, 28 and 40 V dc
Output current
1, 2, 3
1
1000
190
475
25
417
333
200
290
±25
±50
±25
±50
18
mA
2
V
200
290
mV PP
Output ripple voltage
Line regulation
2, 3
1
±25
±50
±25
±50
18
VIN = 16, 28, and 40 V dc
OUT = 0, 50%, 100% IMAX
mV
mV
I
2, 3
1
50
25
Load regulation
VIN = 16, 28, and 40 V dc
IOUT = 0, 50%, 100% IMAX
2, 3
50
IOUT = 0 Pin 5 to Pin 7
IOUT = 0 Pin5 open
IOUT = IMAX
18
1, 2, 3
1, 2, 3
mA
Input current
50
50
50
2
100
100
100
mA
Input ripple current
Efficiency
PP
1
71
68
71
68
IOUT = IMAX
66
%
2, 3
Isolation - Input to
output or any pin to
case
VTEST 500 Vdc, Tc= +25°C
1
100
100
100
MΩ
3, 4
No effect on dc
performance, Tc = +25°C
Capacitive load
4
500
200
200
µf
5
4.0
2.0
600
4.0
2.0
600
4.0
2.0
600
Power dissipation, load
fault
Overload
1, 2, 3
W
Short circuit
IOUT = IMAX
4
4, 5, 6
500
500
500
KHz
Switching frequency
4
-300
-450
-500
-750
+300
+450
+500
+700
200
Output response to step ½ IMAX ó IMAX
-450
+450
+750
-400
+450
+750
transient load changes
5, 6
4
mV pk
6
0 mA ó IMAX
-750
-800
5, 6
IOUT = IMAX
100
1
100
1
µS
Recovery time, step
4, 5, 6
4, 5, 6
transient load changes
0 mA ó ½ IMAX
1
ms
Output response
transient step line
Input step 16 ó 40 V dc
IOUT = IMAX
500
1000
1000
mV pk
4
8
changes
Recovery time transient
4, 7, 8
step line changes
Input step 16 ó 40 V dc
IOUT = IMAX
4, 5, 6
800
800
800
µS
Turn on overshoot
IOUT = 0 mA, IMAX
4, 5, 6
4, 5, 6
600
20
600
25
600
25
mV pk
ms
9
IOUT = 0 or IMAX
Turn on delay
4
4, 5, 6
20
25
25
ms
Load fault recovery
For Notes to Specifications, refer to page 3
2
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ASA28XXS Series
Notes to Specifications
1.
2.
3.
Parameter guaranteed and measured during line and load regulation tests.
Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.
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.
4.
5.
Parameter shall be tested as part of design characterization and after design or process changes.
An overload is that condition of load in excess of rated load but less than that necessary to trigger the short circuit protection
and is the condition of maximum power dissipation.
6.
7.
Load step transition time between 2 and 10 microseconds.
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.
9.
Input step transition time between 2 and 10 microseconds.
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.
Available Screening Levels and ProcessVariations for ASA28XXS Series
MIL-STD-883
Method
No
ES
HB
CH
Requirement
Temperature Range
Element Evaluation
Internal Visual
Suffix
Suffix
Suffix
Suffix
-20°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
MIL-PRF-38534
ü
2017
1010
¬
ü
Cond B
500g
ü
Temperature Cycle
Constant Acceleration
Burn-in
Cond C
Cond C
2001,
Cond A
Cond A
1015
48hrs @ 85°C
25°C
48hrs @ 125°C
25°C
160hrs @ 125°C
160hrs @ 125°C
Final Electrical (Group A)
Seal, Fine & Gross
External Visual
MIL-PRF-38534
1014
-55, +25, +125°C -55, +25, +125°C
Cond C
¬
Cond A, C
ü
Cond A, C
Cond A, C
2009
ü
ü
* per Commercial Standards
Available Standard Military Drawing (SMD) Cross Reference
ASA2805S/CH
ASA2812S/CH
ASA2815S/CH
5962-9462901
5962-9463101
5962-9463001
Part Numbering
ASA 28 05 S / CH
Model
Screening
– , ES, HB, CH
Input Voltage
28 = 28V
Output Voltage
Outputs
S = Single
D = Dual
5 = ±5, 12 = ±12,
15 = ±15
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3
ASA28XXS Series
ASA28XXS Block Diagram
1
6
+Output
+Input
Return
2
Error
Amplifier
Return
7
Case
8
Enable
5
Controller
ASA28XXS Pin Designation
ASA28XXS Case Outline
Pin No.
Designation
1.075
0.800
1
2
3
4
5
6
7
8
Positive Output
Output Return
N/C
0.270
1
2
3
4
5
N/C
0.800
±.005
Enable
1.075
Positive Input
Input Return
Case
8
7
6
0.025 ± .003 Dia Pins
0.220
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. 09/02
4
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