參數(shù)資料
型號(hào)： AHF2805DF
廠商： International Rectifier
英文描述： LJT 46C 46MIX SKT WALL RECP
中文描述： 28V輸入，單路和雙路輸出
文件頁(yè)數(shù)： 13/17頁(yè)
文件大?。?/td> 148K
代理商： AHF2805DF
www.irf.com
13
AHF28XX Series
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 +V
and –V
.
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 V
OUT
has returned to within ±1
percent of V
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.
Table VI. Electrical Performance Characteristics -
continued
Test
Symbol
-55°C
≤
Tc
≤
+125°C
Vin = 28 Vdc ±5%, C
= 0
Unless otherwise specified
Overload
Power dissipation
load fault
Short circuit
AHF2815D
Notes to Specifications
Limits
Conditions
Group A
Subgroups
1,2,3
Device
Types
Min
Max
6
2
Unit
8
P
D
01
W
Switching
frequency
Output response
to step transient
load changes
Recovery time
step transient load
changes
Output response
transient step line
changes
Recovery time
transient step line
changes
Turn on
overshoot
Turn on delay
4
F
S
I
OUT
= 800 mA
400 mA to/from 800 mA
0 mA to/from 400 mA
4,5,6
4,5,6
4,5,6
01
01
01
500
-200
-800
600
+200
+800
kHz
mV pk
4,9
VO
TLOAD
400 mA to/from 800 mA
0 mA to/from 400 mA
4,5,6
4,5,6
01
01
70
4,9,10
TT
LOAD
500
μs
4,7,11
VO
TLINE
Input step from/to 16 to
40 V dc, I
OUT
=800mA
4,5,6
01
-750
+750
mV pk
4,7,10,11
TT
LINE
Input step from/to 16 to
40Vdc, I
OUT
=800mA
4,5,6
01
1200
μs
4
VTon
OS
Ton
D
Tr
LF
I
OUT
=0 and 800mA
I
OUT
= 0 and 800mA
4,5,6
4,5,6
4,5,6
01
01
01
750
25
25
38
mV pk
ms
ms
grams
4,12
Load fault
recovery
Weight
7
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