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參數(shù)資料
| 型號(hào)： | MB3893APFV |
| 廠商： | FUJITSU LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Bridge Rectifier; Current Rating:260A; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 30/44頁 |
| 文件大?。?/td> | 496K |
| 代理商： | MB3893APFV |
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MB3893A
30
4. POFF Input Operation
As Figure 4 shows, once when the POFF terminal (pin 18) goes to “H” level, then after a delay interval (0 < delay
< 100
μ
s) the VCONT terminal (pin 16) goes to “L” level, and the OUT1 (pin 29), OUT2 (pin 30), and OUT4 (pin
22) terminals then after a delay interval (t) go to “L” level. Also, a minimum of 10
μ
s is required to set the POFF
signal to “H” level.
5.CONT2 Input Operation
As Figure 5 shows, when the CONT2 terminal (pin 26) goes from “H” to “L” level, the OUT3 terminal (pin 27)
after a delay interval (t
R1
) outputs its regulated voltage. When the CONT2 terminal goes from “L” to “H” level,
then the OUT3 terminal returns to “L” level after the required fall time (t).
POFF
VCONT
OUT1,
OUT2,
OUT4
Reg on
10
μ
s (Min.)
Reg off
t
*
0
<
delay
<
100
μ
s
*: t : Varies according to the output status of each regulator.
Figure 4. POFF Input Operation
CONT2
OUT3
Reg off
Reg off
Reg on
t
R1
t
*
*: t : Varies according to the output status of the regulator.
Figure 5.
CONT2 Input Operation
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