lp3470im5x-4.63 National Semiconductor Corporation, lp3470im5x-4.63 Datasheet - Page 5

• Manufacturer Part Number: lp3470im5x-4.63
• Description: Tiny Power On Reset Circuit
• Manufacturer: National Semiconductor Corporation

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