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BQ2903SN Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

Part # BQ2903SN
Description  Rechargeable Alkaline Charge/Discharge Controller IC
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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BQ2903SN Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers

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6
bq2903
FG290302.eps
bq2903
VSS
VSS
VSEL
NSEL
DONE
CHG
DC
LRTN2
LRTN1
DRV
BAT3N
BAT2N
BAT1N
BAT1P
13
7
6
4
5
10
11
14
1
2
3
8
9
12
D1
CHG/RED
D2
DONE/GREEN
R1
Optional for Higher
Discharge Current or
Lower Series Loss
IRF7102
Dual N-Channel
MOSFET
Load
Battery
and
Load
R2
R3
R4
C2
C3
C4
C5
Q1
DC+
DC-
C1
Note: Load must be disconected
from battery stack while
changing
Figure 4. bq2903 Application Example,
4–Cell and 1.0V EDV


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