tle7469 Infineon Technologies Corporation, tle7469 Datasheet - Page 18

• Manufacturer Part Number: tle7469
• Description: Dual Low Drop Voltage Regulator
• Manufacturer: Infineon Technologies Corporation

Figure 7
Figure 8
Data Sheet
VRO/V
WDI/V
VQ/V
Wnd
Vi/V
V
WDI
WDI
RT
= Watchdog decoder sample point
Closed window
T
RD
Don’t care WDI
during IW
Window Watchdog Signal Flow
Window Watchdog Definitions
Ingnore Wnd
t
ECW
Open window
OW
1. Correct Trigger
Normal operation
t
CW
WD,p
OW
CW
trigger signal
Not valid
Watchdog
Valid
18
OW
No Trigger
in OW
t
rr
T
RD
Open window
OW
CW
(Wrong) Trigger
T
RD
in CW
t
EOW
Rev. 1.6, 2008-01-22
OW
Closed window
Power
TLE 7469
AET02952
Fail
t
rr
t
t
t
t
t