Q67007-A9648 Ver la hoja de datos (PDF) - Infineon Technologies

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Q67007-A9648

Multi-Voltage Processor Power Supply

Infineon Technologies 

TLE 6368 / SONIC

Perfect triggering after Power on Reset

VQ_LDO1

VRth1

1V

t

R1

tRES

t

Watchdog

window

tCW

tSR

CW OW CW OW CW

CW OW

t

CS

t

1)

2)

2)

2)

ERR

t

Incorrect triggering

Watchdog

window

CW OW

t

CS

with WD-

trig=1

t

3)

4)

1) Watchdog enable command with no trigger: D0D9D14D15=0100

2) Watchdog trigger: D15=1

3) Pretrigger

4) Missing trigger

Legend:

OW = Open window

CW = Closed window

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

15

2004-10-15

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