Low-Cost Multichemistry Battery Chargers
DC-DC Functional Diagram
5ms
S
R
CSSP
AC ADAPTER
RESET
1.8V
BST
CSS
X20
RS1
LDO
D3
IMAX
CCMP
IMIN
MAX1908
MAX8724
CSSN
BST
Q
N1a
DHI
LX
R
S
Q
C
BST
DHI
CHG
Q
L1
0.15V
0.1V
N1b
DLO
DLO
t
OFF
GENERATOR
CSIP
ZCMP
CSI
X20
RS2
CSIN
BATT
GMS
GMI
LVC
C
OUT
BATTERY
GMV
SETV
CONTROL SETI
CELL
SELECT
LOGIC
CLS
CELLS
CCS CCI
CCV
Figure 4. DC-DC Functional Diagram
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