Datasheet

LTC2954
10
2954fb
Figure 1. Simplified Power On/Off Sequence for LTC2954-1. μP Asserts KILL After an Interrupt
Figure 2. KILL Remaining Low Aborts Power-On Sequence for LTC2954-1
APPLICATIONS INFORMATION
t
1
t
2
t
DB, ON
XXX DON'T CARE
t
3
t
4
t
5
t
6
t
8
t
9
t
7
PB
ONT
PDT
EN
KILL
INT
PB & KILL IGNORED
2954 F01
t
KILL, ON BLANK
t
DB, OFF
t
PD, MIN
t
ONT
t < t
PDT
PB IGNORED
μP DRIVES
KILL LOW
t
ABORT
t
DB,ON
+ t
ONT
PB
KILL
POWER-ON
TIMING
EN
512ms
INTERNAL
TIMER
POWER
TURNED OFF
2954 F02
μP FAILED TO SET
KILL HIGH