Datasheet

Vss
SRN
SRP
Vcc
BAT_LOW/BAT_GD
SDA
SCL
1
2
3
4
5
6
12
11
10
9
8
7
bq27510-G2
TS
REGIN
BAT
BI/TOUT
REG25
bq27510-G2
SLUS948 –AUGUST 2010 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
DEVICE INFORMATION
AVAILABLE OPTIONS
PART NUMBER
(1)
PACKAGE
(2)
TA COMMUNICATION TAPE and REEL
FORMAT QUANTITY
bq27510DRZR-G2 3000
12-pin, 2,5-mm × 4-mm
–40°C to 85°C I
2
C
SON
bq27510DRZT-G2 250
(1) For bq27510-G1 users, please refer to "bq27510-G1 to bq27510-G2 CHANGE LIST" (SLUA567) for device change information.
(2) For the most current package and ordering information see the Package Option Addendum at the end of this document; or, see the TI
website at www.ti.com.
PIN DIAGRAM
PIN FUNCTIONS
PIN TYPE
(1)
DESCRIPTION
NAME NO.
BI/TOUT 1 I/O Battery-insertion detection input. Power pin for pack thermistor network. Thermistor-multiplexer control
pin. Open-drain I/O. Use with pull-up resistor >1MΩ (1.8 MΩ typical).
REG25 2 P 2.5 V output voltage of the internal integrated LDO.
REGIN 3 P The input voltage for the internal integrated LDO.
BAT 4 I Cell voltage measurement input. ADC input.
Vcc 5 P Processor power input. Decouple with 0.1mF ceramic capacitor minimum.
Vss 6 P Device ground
SRP 7 IA Analog input pin connected to the internal coulomb counter where SRP is nearest the
PACK-connection. Connect to 5-mΩ to 20-mΩ sense resistor.
SRN 8 IA Analog input pin connected to the internal coulomb counter where SRN is nearest the V
SS
-connection.
Connect to a 5-mΩ to 20-mΩ sense resistor.
TS 9 IA Pack thermistor voltage sense (use 103AT-type thermistor). ADC input
SDA 10 I/O Slave I
2
C serial communications data line for communication with system (Master). Open-drain I/O.
Use with 10-kΩ pull-up resistor (typical).
SCL 11 I Slave I
2
C serial communications clock input line for communication with system (Master). Use with
10-kΩ pull-up resistor (typical).
BAT_LOW/ 12 O Battery-good or Battery-low output indicator. Desired function polarity selected through the Operation
BAT_GD Configuration register. Open-drain output
(1) I/O = Digital input/output; IA = Analog input; P = Power connection.
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