TLE9869QXA20_15 Datasheet, PDF (43/122 Pages) Infineon Technologies AG – Microcontroller with LIN and H-Bridge MOSFET Driver for Automotive Applications

TLE9869QXA20
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