3-, 4-Cell Lithium-Ion Protection IC For Use With BQ2083/5

The BQ29311 is a three- or four-cell lithium-ion battery pack protection Analog front end (AFE) IC that incorporates a 3.3-V 25-mA low-dropout Regulator (LDO) and an I2C compatible Interface to extract battery parameters such as cell voltages and control output status. Other parameters, such as overcurrent protection threshold and delay, CAN also be programmed into the BQ29311 to increase the flexibility of the Battery Management system.
The BQ29311 provides safety protection in overcurrent, short circuit, overvoltage, and undervoltage conditions via control from the Battery Management host. In overcurrent and short-circuit conditions the BQ29311 CAN activate the FET drive as a secondary protection level. The Communications Interface allows the host to control and observe the current status of the protection, to set overcurrent levels for charge and discharge, to set the overcurrent blanking delay time, short-circuit threshold levels, and short-circuit blanking delay time, and to program for the VREG shutdown voltage and brownout-detection thresholds. Each cell is balanced by a discharge path, which is enabled by the internal control Registers accessible through the I2C compatible Interface The maximum current is set by an external series resistor with an absolute maximum value of 10 mA discharge current per cell.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
BQ29311PW Texas Instruments 3-, 4-Cell Lithium-Ion Protection IC for Use With BQ2083/5 24-TSSOP -25 to 85
BQ29311PWG4 Texas Instruments 3-, 4-Cell Lithium-Ion Protection IC for Use With BQ2083/5 24-TSSOP -25 to 85
BQ29311PWR Texas Instruments 3-, 4-Cell Lithium-Ion Protection IC for Use With BQ2083/5 24-TSSOP -25 to 85
BQ29311PWRG4 Texas Instruments 3-, 4-Cell Lithium-Ion Protection IC for Use With BQ2083/5 24-TSSOP -25 to 85
BQ2083DBT-V1P3 Texas Instruments SBS-Compliant Gas Gauge for Use with bq29311 38-TSSOP -20 to 85
BQ2085DBT-V1P3G4 Texas Instruments SBS-Compliant Gas Gauge IC For Use With The bq29311 38-TSSOP -20 to 85
BQ2085DBT-V1P3 Texas Instruments SBS-Compliant Gas Gauge IC For Use With The bq29311 38-TSSOP -20 to 85
BQ2083DBTR-V1P3 Texas Instruments SBS-Compliant Gas Gauge for Use with bq29311 38-TSSOP -20 to 85
BQ2085DBTR-V1P3G4 Texas Instruments SBS-Compliant Gas Gauge IC For Use With The bq29311 38-TSSOP -20 to 85
BQ2085DBTR-V1P3 Texas Instruments SBS-Compliant Gas Gauge IC For Use With The bq29311 38-TSSOP -20 to 85
BQ29311 's PackagesBQ29311 's pdf datasheet
BQ29311PW TSSOP
BQ29311PWG4 TSSOP
BQ29311PWR TSSOP
BQ29311PWRG4 TSSOP




BQ29311 Pinout, Pinouts
BQ29311 pinout,Pin out
This is one package pinout of BQ29311,If you need more pinouts please download BQ29311's pdf datasheet.

BQ29311 Application circuits
BQ29311 circuits
This is one application circuit of BQ29311,If you need more circuits,please download BQ29311's pdf datasheet.


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