Two, Three And Four Cell Lithium Or Lithium-Polymer Battery Protection AFE

The BQ29312 is a 2-, 3-, or 4-cell lithium-ion battery pack protection Analog front end (AFE) IC that incorporates a 3.3-V, 25-mA low-dropout Regulator (LDO). The BQ29312 also integrates an I2C compatible Interface to extract battery parameters such as cell voltages and control output status. Other parameters such as current protection thresholds and delays CAN be programmed into the BQ29312 to increase the flexibility of the Battery Management system. The BQ29312 provides safety protection for overcharge, overload, short-circuit, overvoltage, and undervoltage conditions in conjunction with the Battery Management host. In overload and short-circuit conditions, the BQ29312 turns the FET drive off autonomously dependant on the internal configuration setting.
The Communications Interface allows the host to observe and control the current status of the bq29312. It enables cell balancing, enters different power modes, sets overload levels, sets the overload blanking delay time, sets short-circuit threshold levels for charge and discharge, and sets the short-circuit blanking delay time.
Cell balancing of each cell is performed via a cell bypass path, which is enabled via the internal control Register accessible via the I2C compatible Interface The maximum bypass current is set via an external series resistor and internal FET on resistance (typical 400 ).
By Texas Instruments
Part Manufacturer Description Datasheet Samples
BQ29312ARTHR Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-VQFN -40 to 85
BQ29312PW Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -25 to 85
BQ29312PWG4 Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -25 to 85
BQ29312APWR Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -40 to 85
BQ29312APW Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -40 to 85
BQ29312PWR Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -25 to 85
BQ29312PWRG4 Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -25 to 85
BQ29312APWG4 Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -40 to 85
BQ29312APWRG4 Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-TSSOP -40 to 85
BQ29312ARTHRG4 Texas Instruments Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE 24-VQFN -40 to 85
BQ29312 's PackagesBQ29312 's pdf datasheet
BQ29312PW TSSOP
BQ29312PWG4 TSSOP
BQ29312PWR TSSOP
BQ29312PWRG4 TSSOP




BQ29312 Pinout, Pinouts
BQ29312 pinout,Pin out
This is one package pinout of BQ29312,If you need more pinouts please download BQ29312's pdf datasheet.

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