See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

DRB | 8

Temp:

T (-40 to 105)

ECO Plan:

Green (RoHS & no Sb/Br)

BQ29209TDRBRQ1


Automotive Voltage Protection with Automatic Cell Balance For 2-Cell Li-Ion Batteries, OVP=4.30V

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Texas Instruments BQ29209TDRBRQ1

The bq29209-Q1 device is a secondary overvoltage protection IC for 2-series cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit and automatic cell imbalance correction.

The voltage of each cell in a 2-series cell battery pack is compared to a factory programmed internal reference voltage. If either cell reaches an overvoltage condition, the OUT pin changes from low to high state.

The bq29209-Q1 can perform automatic voltage-based cell imbalance correction. Balancing can start when the cell voltages are different by nominally 30 mV or more and stops when the difference is nominally 0 mV. Cell balancing is enabled and disabled by the CB_EN pin.

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