BQ27750 Datasheet, PDF (3/34 Pages) Texas Instruments – Impedance Track Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs

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5 Pin Configuration and Functions
bq27750
SLUSCM7 – JUNE 2017
VSS
1
SRN
2
SRP
3
TS1
4
SCL
5
SDA
6
12
11
10
Thermal
Pad
9
8
7
VCELL/INT
BAT
PBI
CHG
PACK
DSG
Not to scale
PIN
NAME
VSS
DRZ
1
SRN
2
SRP
3
TS1
4
SCL
5
SDA
6
DSG
7
PACK
8
CHG
9
PBI
10
BAT
11
VCELL/INT
12
PWPD
Pin Functions
I/O
P ⁽¹⁾
AI
AI
AI
I/O
I/O
O
AI, P
O
P
AI, P
AI
—
DESCRIPTION
Device ground
Analog input pin connected to the internal coulomb counter peripheral for integrating a small
voltage between SRP and SRN where SRP is the top of the sense resistor.
Analog input pin connected to the internal coulomb counter peripheral for integrating a small
voltage between SRP and SRN where SRP is the top of the sense resistor.
Temperature input for ADC
Serial Clock for I²C interface; requires external pullup when used
Serial Data for I²C interface; requires external pullup
N-CH FET drive output pin
Pack sense input pin
N-CH FET drive output pin
Power supply backup input pin
Sense voltage input pin and power for battery
Sense voltage input pin with option to configure as open drain interrupt pin
Exposed Pad, electrically connected to VSS (external trace)
(1) P = Power Connection, O = Digital Output, AI = Analog Input, I = Digital Input, I/O = Digital Input/Output
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