參數(shù)資料
型號: LP3470M5X-4.63
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: Tiny Power On Reset Circuit
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: SOT-23, 5 PIN
文件頁數(shù): 4/7頁
文件大?。?/td> 157K
代理商: LP3470M5X-4.63
Typical Operating Characteristics
T
A
= +25C, unless otherwise specified.
Pin Description
Pin
1
Name
SRT
Function
Set Reset Time-out Input. Connect a capacitor between this input and ground to select the Reset
Time-out period (t
RP
). t
RP
= 2000 x C
1
(C
1
in μF and t
RP
in ms). If no capacitor is connected,
leave this pin floating.
Ground pin.
Always connect to pin V
CC
(Pin 4).
Supply voltage, and reset threshold monitor input.
Open-Drain, Active-Low reset output. Connect to an external pull-up resistor. Reset changes
from high to low whenever the monitored voltage (V
CC
) drops below the reset threshold voltage
(V
RTH
). Once V
CC
exceeds V
RTH
, Reset remains low for the reset timeout period (t
RP
) and then
goes high.
2
3
4
5
GND
V
CC1
V
CC
Reset
I
CC
vs Temperture
DS100016-10
I
CC
vs V
CC
DS100016-11
V
CC
to Reset Delay vs Temp
DS100016-13
Normalized t
RP
vs Temp.
DS100016-12
Normalized V
RTH
vs Temp.
DS100016-8
Transient Rejection
DS100016-6
V
HYST
vs V
RTH
DS100016-14
V
HYST
vs Temperature
DS100016-9
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