BQ27546-G1 Datasheet, PDF (3/38 Pages) Texas Instruments – nullSingle-Cell Li-Ion Battery Fuel Gauge

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6 Device Comparison Table
PART
NUMBER ⁽¹⁾
BQ27546YZFR-G1
BQ27546YZFT-G1
FIRMWARE
VERSION
2.00
(1) bq27546-G1 is shipped in I²C mode.
PACKAGE ⁽¹⁾
DSBGA-15
7 Pin Configuration and Functions
bq27546-G1
SLUSC53A – MAY 2015 – REVISED DECEMBER 2015
T_A
–40°C to 85°C
COMMUNICATION
FORMAT
I²C, HDQ⁽¹⁾
TAPE AND REEL
QUANTITY
3000
250
PIN
NAME
NO.
SRP
A1
SRN
V_SS
SE
V_CC
REGIN
HDQ
TS
CE
BAT
B1
C1, C2
C3
D1
E1
A2
B2
D2
E2
SCL
A3
SDA
B3
NC/GPIO D3, E3
Pin Functions
TYPE ⁽¹⁾
DESCRIPTION
IA
Analog input pin connected to the internal coulomb counter where SRP is nearest the V_SS connection.
Connect to a 5-mΩ to 20-mΩ sense resistor.
IA
Analog input pin connected to the internal coulomb counter where SRN is nearest the PACK– connection.
Connect to a 5-mΩ to 20-mΩ sense resistor.
P
Device ground
O
Shutdown Enable output. Push-pull output
P
Regulator output and processor power. Decouple with a 1.0-µF ceramic capacitor to V_SS.
P
Regulator input. Decouple with a 0.1-µF ceramic capacitor to V_SS.
I/O HDQ serial communications line (Slave). Open-drain
IA
Pack thermistor voltage sense (use 103AT-type thermistor). ADC input
I
Chip Enable. Internal LDO is disconnected from REGIN when driven low.
IA
Cell-voltage measurement input. ADC input. Recommendation is 4.8 V maximum for conversion
accuracy.
I
Slave I²C serial communications clock input line for communication with system (Master). Use with a 10-
kΩ pull-up resistor (typical).
I/O
Slave I²C serial communications data line for communication with system (Master). Open-drain I/O. Use
with a 10-kΩ pull-up resistor (typical).
NC Do not connect for proper operation. Reserved for future GPIO.
(1) IA = Analog input, I/O = Digital input/output, P = Power connection, NC = No connect
Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: bq27546-G1
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