Datasheet

LTC2928
23
2928f
APPLICATIO S I FOR ATIO
WUU
U
Figure 14. Turn-Off Enables Simultaneously (no sequence-down)
Figure 15. Negative Supply Monitoring
2928 F11a
RT1
V
CC
V
CC
RT2
RT3
RT4
V
CC
3.3k
1N4148
EN1
EN2
EN3
EN4
ON
EN1-4
FLT
LTC2928
ON
CONTROLLER
SEQUENCING
UP
FLT
SHUTDOWN
REF
V1
43.2k
11k
10k
5V –5.2V (V
MON(TH)
= –4.67V)
V
MON(TH)
= –V
REF
(43.2k/11k)
LTC3704
RUN
EN1
V
CC
V
SEL
LTC2928
2928 F12a