Datasheet

17

Rev. 1.0

2023-07-11

OPTIREG™ linear TLE4263-2GS

5 V low drop voltage regulator

Application information

Watchdog timing

The period of the watchdog pulses has to be smaller than the minimum watchdog trigger time which is set by

the external reset delay capacitor CD. Use the following formula for dimensioning CD:

(5.3)

with

• CD: capacitance of the delay capacitor to be chosen

•TWI,tr,new: desired watchdog trigger time

•TWI,tr: watchdog trigger time specified in this data sheet

CD

TWI,tr,new

TWI,tr

------------------------ 100 nF

×

=