Datasheet

2-2
2.1 Pin Descriptions
BAT+ Cell positive/pack positive (PACK+)
BAT_ Cell negative
PACK– Pack negative
HDQ Serial communications port
RBI Register backup input
2.2 Schematic
Figure 2–1 is the bq26231EVM-001 (SLUP148) circuit module schematic
diagram.
Figure 2–1. bq26231EVM-001 Schematic
R3
100 kΩ
NC
21
U1
bq26230PW/
bq26231PW
BAT+
RBI
D2
J2
100 kΩ
R6
BAT–
NC
D1
5.6 V
R3
100 Ω
PACK–
C4
0.1 µf
R7
1 M
HDQ
J1
1
R1
100 Ω
C1
0.1 µf
R5
100 kΩ
R2
100 Ω
VCC
VSS
HDQ
SR1
SR2
RBI
R8
0.02
C3
0.1 µf
C2
0.1 µf
2
3
4
8
7
6
5