TLE9877QXA20_15 Datasheet, PDF (43/122 Pages) Infineon Technologies AG – Microcontroller with LIN and BLDC MOSFET Driver for Automotive Applications

TLE9877QXA20
13.2
Introduction
The behavior of the Watchdog Timer in Active Mode is illustrated in Figure 16.
Watchdog Timer (WDT1)
Power-up
Reset
Timeout ^always
RESET
Trigger SOW
RESET
Timeout
or
Trigger in closed window
Long
Open Window
RESET
Timeout
Maximum number
of count_SOW
Trigger &
count_SOW = 0
Figure 16 Watchdog Timer Behavior
Normal
„windowed“
operation
Trigger &
count_SOW = 0
Trigger SOW &
count_SOW++
Trigger &
count_SOW = 0
Short
open window
& SOW
Trigger SOW &
count_SOW++
Data Sheet
43
Rev. 1.0, 2015-04-30