MAX1538 Datasheet, PDF (13/22 Pages) Maxim Integrated Products – Power-Source Selector for Dual-Battery Systems

Power-Source Selector for
Dual-Battery Systems
4R
BATB
R
0.4V
MINVB
4R
BATA
R
0.4V
MINVA
ACDET
2V
BATTERY B
UNDERVOLTAGE
LATCH
SQ
R
Q
BATTERY A
UNDERVOLTAGE
LATCH
SQ
R
Q
STATE
MACHINE
ADPIN
ADPPWR
EXTLD
REVBLK
ADPBLK
CHGIN
DISBAT
CHGA
AIRDET
CHRG
BATSEL
RELRN
BATSUP
V_DD
REF
GND
ADPIN
LDO
MAX1538
CHGB
BATA
DISA
BATB
DISB
N
N
N
OUT0
OUT1
OUT2
Figure 3. Functional Diagram
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