BQ27741-G1_14 Datasheet, PDF (30/39 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge with Integrated Protection

bq27741-G1
SLUSBF2 – JULY 2013
R16
10
R1
10
C2
0.1 µF
C1
0.1 µF
C3
TB1
CELL+
1
2
CELL–
3
1 µF
C4
.47 µF
Ext Therm
RT1
10 k
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R2 5 mΩ
0.1 µF C9 C10 0.1 µF
Q1
UPA2375T1P
R11
C7
R12
C5
0.1 µF _C6 0.1 µF
0.1 µF
U1
bq27741–G1
C1 _VPWR
C2 _BAT[RC3]
E1 _REG25
E2 _TS
B2 _RA0
D3 _RC2
D1 _VSS
SRN ^B1
SRP ^A1
PACKP ^B3
CHG ^A2
DSG ^A3
SDA ^C3
SCL ^E3
HDQ ^D2
R17
4.7 k
R3
R5
1k
1k
R13
2k
C8
0.1 µF
C11
0.1 µF
R7
100
D1
R10
C12
100 _{0.1 µF}
1.8 V pullup. HDQ requires pack-side pullup.
3
PACK+/Load+
2
HDQ
1
PACK–/Load–
TB3
SPACER
Figure 6. HDQ Mode
30
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