Datasheet

LTC2953
10
2953f
TIMING DIAGRAMS
t
DB, OFF
t
INT, Min
t < t
PDT
UVLO
INT
PDT
EN
(LTC2953-1)
t
PD, Min
2953 TD03
PB AND UVLO
IGNORED
PB IGNORED
PB
ENABLE DOES NOT SWITCH LOW
PB
INT
PDT
2953 TD04
16 CYCLES
EN
(LTC2953-1)
t
DB, OFF
PB
IGNORED
t
PDT
t
PD, Min
t
INT, Max
UVLO
UVLO IGNORED
Figure 3. UVLO Interrupt Pulse: UVLO Low for t
DB,OFF
< t < (t
PD, Min
+ t
PDT
) (Enable Remains Active)
Figure 4. Push Button Power Down Timing:
⎯
P
⎯
B Pressed and Held Low for t > (t
PD, Min
+ t
PDT
)