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LP3470 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LP3470
Descripción Electrónicos  Tiny Power On Reset Circuit
PDF  8 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP3470 Datasheet(HTML) 5 Page - National Semiconductor (TI)

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Typical Operating Characteristics T
A = +25˚C, unless otherwise specified. (Continued)
V
HYST vs VRTH
V
HYST vs Temperature
10001614
10001609
Pin Description
Pin
Name
Function
1
SRT
Set Reset Time-out Input. Connect a capacitor between this input and ground to select the Reset
Time-out period (t
RP). tRP =2000xC1 (C1 in µF and tRP in ms). If no capacitor is connected,
leave this pin floating.
2
GND
Ground pin.
3V
CC1
Always connect to pin V
CC (Pin 4).
4V
CC
Supply voltage, and reset threshold monitor input.
5
Reset
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 (VRTH).
Once V
CC exceeds VRTH, Reset remains low for the reset timeout period (tRP) and then goes high.
Functional Block Diagram
10001603
www.national.com
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