BQ40Z50 Datasheet, PDF (3/30 Pages) Texas Instruments – 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager

bq40z50
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TYPICAL IMPLEMENTATION
SLUSBS8 – DECEMBER 2013
OUT
VC3
VDD
VC2
GND
VC1
100 Ω
0.1 μF
10 kΩ
BAT
10 Ω
VC4
100 Ω
VC3
100 Ω
VC2
100 Ω
VC1
100 Ω
PBI
2.2 μF
VSS
3 MΩ
SRP
SRN
TS1
10 kΩ
10 kΩ
PACK
LEDCNTLA
LEDCNTLB
LEDCNTLC
TS2
10 kΩ
DISP
SMBD
SMBC
PRES
100 Ω
100 Ω
180 kΩ
PACK+
SMBD
SMBC
PRES
Pinout Diagram
Figure 1. bq40z50 Implementation
PACK–
PBI ¹
VC4 2
VC3 ³
VC2 ⁴
VC1 ⁵
SRN ⁶
NC ⁷
SRP ⁸
24 PTCEN
23 PTC
22 LEDCNTLC
21 _LEDCNTLB
20 _LEDCNTLA
19 SMBC
18 SMBD
17 DISP
Figure 2. bq40z50 Pinout Diagram
PIN NAME
PBI
VC4
PIN
NUMBER
1
2
TYPE ⁽¹⁾
P
IA
PIN FUNCTIONS
DESCRIPTION
Power supply backup input pin
Sense voltage input terminal for most positive cell, and balance current input for most
positive cell
(1) P = Power Connection, O = Digital Output, AI = Analog Input, I = Digital Input, I/OD = Digital Input/Output
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