What are the key features of the bq29209?

Key features include a 4.30V overvoltage threshold, low power consumption (<3µA), programmable delay via external capacitor, and automatic cell imbalance correction.

How is cell balancing handled?

The device performs automatic cell-balance correction by loading the higher-voltage cell with a small balancing current. It is enabled by pulling the CB_EN pin low.

What is the pinout of BQ29209DRBR?

Use the BQ29209DRBR datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about BQ29209DRBR pinout to locate pins, power rails, and interface signals before layout.

BQ29209DRBR Datasheet, Specs, Alternatives & ECAD | Texas Instruments

Q: What is the bq29209?

The bq29209 is a secondary overvoltage protection IC designed for 2-series cell lithium-ion battery packs, featuring integrated automatic cell balancing.

Q: How is cell balancing handled?

The device performs automatic cell-balance correction by loading the higher-voltage cell with a small balancing current. It is enabled by pulling the CB_EN pin low.

Q: What is the pinout of BQ29209DRBR?

Use the BQ29209DRBR datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about BQ29209DRBR pinout to locate pins, power rails, and interface signals before layout.

AI summary

The bq29209 is a reliable secondary protection IC for 2-cell Li-Ion packs, offering integrated overvoltage protection and automatic cell balancing.

Best for

2-cell Li-Ion battery packs
Secondary protection circuits

Avoid if

Applications requiring primary fuel gauging
Systems with more than 2 cells in series

Check before use

External capacitor values for timing
Balancing resistor values for current limits

Key specifications

OVP Threshold: 4.30 V
Supply Current: < 3 µA
Package: VSON-8

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: -
MSL: Level-2-260C-1 YEAR
ECCN: EAR99
HTSUS: 8542.39.0001

Application

Notebook ComputersPower ToolsBackup Battery Systems

Datasheet

VAELS00017-1.pdf

800 KB

Datasheet AI

CAD Models

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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

The bq29209 is a secondary overvoltage protection IC designed for 2-series cell lithium-ion battery packs, featuring integrated automatic cell balancing.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the bq29209?+×

What are the key features of the bq29209?+×

How is cell balancing handled?+×

What is the pinout of BQ29209DRBR?+×