TLE7273-2_14 Datasheet, PDF (10/26 Pages) Infineon Technologies AG – Low Dropout Voltage Regulator

TLE7273-2
Block Description and Electrical Characteristics
Vi/V
t
VQ/V _VRT
IQ/A
VRO/V
T_RD
Normal operation
T_RD
t_rr
T_RD
I_{Q, WD_OFF}
I_{Q, WD_ON}
No Reset during
Current shut down
t
t
Power
Fail
t_rr
t
Wnd
1. long
Ingnore Wnd _OW
CW OW CW
OW
1. long
OW
CW
1. long
OW
1. long
OW
OW CW
t
WDI/V
Don’t care WDI
during IW
1. Correct Trigger
t_WD,p
No Trigger
in OW
(Wrong) Trigger
in CW
1st long open
window to
synchronize WD
Current Controlled
WD-turn off
t
Figure 6 Window Watchdog Signal Diagram
Closed window Open window
WDI
Watchdog
trigger signal
Valid
Open window Closed window
WDI
t _ECW
= Watchdog decoder sample point
Not valid
Figure 7 Window Watchdog Definitions
t _EOW
AET02952
Data Sheet
10
Rev. 1.21, 2014-11-19