lt3688fe Linear Technology Corporation, lt3688fe Datasheet - Page 12

• Manufacturer Part Number: lt3688fe
• Description: Lt3688 - Dual 800ma Step-down Switching Regulator With Power-on Reset And Watchdog Timer
• Manufacturer: Linear Technology Corporation

LT3688
TIMING DIAGRAMS
12
V
V
V
V
V
V
RST1
RST2
RST1
RST2
RST1
RST2
WDO
WDO
WDO
OUT1
OUT2
OUT1
OUT2
OUT1
OUT2
WDI
WDI
WDI
t
RST2
t
t
t
V
RST1
RST2
WDU
V
V
V
V
UV
UV
UV
UV
UV
V
V
= RESET THRESHOLD
= WATCHDOG WINDOW UPPER BOUNDRY
UV
UV
= PROGRAMMED RESET PERIOD (C
= PROGRAMMED RESET PERIOD (C
STARTUP TIMING (V
STARTUP TIMING (V
STARTUP TIMING (V
t
RST1
t
t
t
RST1
RST1
RST2
CONFIG
CONFIG
CONFIG
t
t
t
WDU
WDU
WDU
POR1
POR2
= OPEN)
= HIGH)
= LOW)
)
)
3688 TD
3688f