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參數(shù)資料
| 型號： | AHF2812S |
| 廠商： | International Rectifier |
| 英文描述： | 28V Input, Single and Dual Output |
| 中文描述： | 28V輸入，單路和雙路輸出 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 148K |
| 代理商： | AHF2812S |
www.irf.com
3
AHF28XX Series
Table I. Electrical Performance Characteristics -
continued
Test
Symbol
-55°C
≤
Tc
≤
+125°C
Vin = 28 Vdc ±5%, C
= 0
unless otherwise specified
Output response to
step transient load
changes
0 mA to/from 1200mA
Notes to Specifications
AHF2805S
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 V
OUT
has returned to within ±1
percent of V
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.
Limits
Conditions
Group A
Subgroups
4,5,6
Device
Types
Min
Max
Unit
6
VO
TLOAD
1200 mA to/from 2400mA
01
-300
+300
mV pk
4,5,6
-500
+500
mV pk
1200 mA to/from 2400mA
0 mA to 1200 mA
500 mA to 0 mA
4,5,6
4,5,6
4,5,6
01
70
1200
8
μs
ms
ms
Recovery time step
transient load
changes
Output response to
transient step line
changes
Recovery time
transient step line
changes
Turn on overshoot
Turn on delay
6.7
TT
LOAD
VO
TLINE
Input step 16 V to/from
40 V dc, I
OUT
= 2400mA
4, 8
4,5,6
01
500
mV pk
TT
LINE
Input step 16 V to/from 40Vdc
I
OUT
= 2400mA
4, 7, 8
4,5,6
01
800
μs
VTon
OS
Ton
D
I
OUT
= 0 and 2400mA
I
OUT
= 0 and 2400mA
4,5,6
4,5,6
01
01
600
20
mV pk
ms
9
Load fault
recovery
Weight
4,9
Tr
LF
4,5,6
01
20
ms
35
grams
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