參數(shù)資料
型號: L4904A
廠商: 意法半導體
英文描述: DUAL 5V REGULATOR WITH RESET
中文描述: 雙帶復位5V穩(wěn)壓器
文件頁數(shù): 2/9頁
文件大?。?/td> 96K
代理商: L4904A
BLOCKDIAGRAM
SCHEMATIC DIAGRAM
PIN FUNCTIONS
N
°
1
2
3
Name
Input 1
Input 2
Timing
Capacitor
GND
N.C.
Reset
Output
Function
Low Quiescent Current 50mA Regulator Input.
100mA Regulator Input.
If Reg. 2 is switching-ON the delay capacitor is charged witha 10
μ
A constant current. When
Reg. 2 is switched-OFF the delay capacitor is discharged.
Common Ground.
Not connected.
Whenpin 3 reaches 5V the reset output is switchedhigh.
Therefore t
RD
= C
t
(5V
10
μ
A); t
RD
(ms) = C
t
(nF).
5V – 100mA Regulator Output. Enabled if V
o
1 > V
RT
and V
IN 2
> V
IT
. If Reg. 2 is switched-OFF
the C
o2
capacitor is discharged.
5V – 50mA regulatoroutput with low leakage in switch-OFF condition.
4
5
6
7
Output 2
8
Output 1
L4904A
2/9
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