TLE6368 Infineon Technologies, TLE6368 Datasheet - Page 15

• Manufacturer Part Number: TLE6368
• Description: Multi-Voltage Processor Power Supply
• Manufacturer: Infineon Technologies

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Figure 7 Window watchdog timing
Figure 7 gives some timing information about the window watchdog. Looking at the
upper signals the perfect triggering of the watchdog is shown. When the 5V linear
regulator Q_LDO1 reaches its reset threshold, the reset delay time has to run off before
Data Sheet, Rev. 1.32
Watchdog
Watchdog
with WD-
window
window
Perfect triggering after Power on Reset
V
Incorrect triggering
trig=1
ERR
1) Watchdog enable command with no trigger: D0D9D14D15=0100
2) Watchdog trigger: D15=1
3) Pretrigger
4) Missing trigger
Legend:
Q_LDO1
CS
CS
V
R1
1V
Rth1
CW
3)
OW = Open window
CW = Closed window
OW
t
4)
RES
1)
CW
t
CW
OW
2)
CW
15
OW
2)
CW
2)
CW
OW
TLE 6368 / SONIC
t
SR
2004-10-15
t
t
t
t
t
t
t