BQ27411-G1 Datasheet, PDF (3/20 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration

bq27411-G1
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PIN DIAGRAM AND PACKAGE DIMENSIONS
PIN DIAGRAM
(TOP VIEW)
SDA 1
SCL 2
VSS 3
NC 4
bq27411
VDD 5
BAT 6
12 PROG
11 NC
10 TEST
9 NC
8 SRP
7 SRN
12-pin VSON, 2.5 x 4mmm 0.4mm pitch
SLUSBN7 – JANUARY 2014
PIN
NAME
NO.
BAT
6
VDD
5
VSS
3
SRP
8
SRN
7
PROG
12
SDA
SCL
TEST
NC
1
2
10
4, 8, 11
TYPE ⁽¹⁾
PI, AI
PO
PI
AI
AI
DO
DIO
DIO
DI
--
PIN FUNCTIONS
DESCRIPTION
LDO regulator input, battery voltage input, and coulomb counter input typically connected to the PACK+ terminal.
1.8V Regulator Output. Decouple with 0.47μF ceramic capacitor to Vss. This pin is not intended to provide power
for other devices in the system.
Ground pin.
Coulomb counter differential inputs expecting an external 10mΩ, 1% sense resistor. Connect SRP to BAT (CELLP)
and connect SRN to PACKP. Refer to application diagram.
Programming voltage input for the One Time Programmable (OTP) memory to be used during customer factory
configuration. To avoid a floating input condition, recommend terminating with a 1.0MΩ (typical) pull-down resistor
to VSS for reduced power consumption.
Slave I²C serial bus for communication with system (Master). Open-drain pins. Use with external 5 - 10kΩ pull-up
resistors (typical) for each pin. If the external pull-up resistors will be disconnected from these pins during normal
operation, recommend using external 1.0MΩ pull-down resistors to VSS at each pin to avoid floating inputs.
This digital factory TEST pin must be pulled low for proper operation in customer's application. Recommend
terminating with a 1.0MΩ (typical) pull-down resistor to VSS for reduced power consumption.
No internal connection. May be left floating or tied to VSS.
(1) I/O = Digital input/output, IA = Analog input, P = Power connection
Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: bq27411-G1
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