Datasheet

LT3689/LT3689-5
11
3689fe
For more information www.linear.com/LT3689
TIMING DIAGRAMS
3689 TD
t
RST
t
WDU
t
WDU
t < t
WDL
t
RST
t
RST
t
RST
t
UV
V
OUT
POWER-ON RESET TIMING
WATCHDOG TIMING (W/T = HIGH), TIMEOUT MODE
V
UV
WDO
WDI
WDI
WDO
RST
WATCHDOG TIMING (W/T = LOW), WINDOW MODE
t
UV
= TIME REQUIRED TO ASSERT RST LOW ONCE V
OUT
GOES BELOW V
UV
t
RST
= PROGRAMMED RESET PERIOD
t
WDU
= WATCHDOG UPPER BOUNDARY PERIOD
t
WDL
= WATCHDOG WINDOW MODE LOWER BOUNDARY PERIOD
V
UV
= OUTPUT VOLTAGE RESET THRESHOLD