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bq29209 - Voltage Protection

Download the bq29209 datasheet PDF. This datasheet also covers the bq29200 variant, as both devices belong to the same voltage protection family and are provided as variant models within a single manufacturer datasheet.

Description

The bq2920x 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.

Features

  • 1 2-Series Cell Secondary Protection.
  • Automatic Cell Imbalance Correction with External Enable Control.
  • ±30-mV Enable, 0-mV Disable Thresholds Typical.
  • External Capacitor-Controlled Delay Timer.
  • External Resistor-Controlled Cell Balance Current.
  • Low Power Consumption ICC < 3 µA Typical (VCELL(ALL) <.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (bq29200-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
bq29209-Q1 Voltage Protection
bq29200 Voltage Protection
bq29311 3- and 4-Cell Lithium-Ion or Lithium-Polymer Battery Protection
bq29312 3- and 4-Cell Lithium-Ion or Lithium-Polymer Battery Protection
bq29312A Lithium-Ion or Lithium-Polymer Battery Protection

Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq29200, bq29209 SLUSA52C – SEPTEMBER 2010 – REVISED MARCH 2016 bq2920x Voltage Protection with Automatic Cell Balance for 2-Series Cell Li-Ion Batteries 1 Features •1 2-Series Cell Secondary Protection • Automatic Cell Imbalance Correction with External Enable Control – ±30-mV Enable, 0-mV Disable Thresholds Typical • External Capacitor-Controlled Delay Timer • External Resistor-Controlled Cell Balance Current • Low Power Consumption ICC < 3 µA Typical (VCELL(ALL) < VPROTECT) • Internal Cell Balancing Handles Current up to 15 mA • External Cell Balancing Mode Supported • High-Accuracy Overvoltage Protection: – ±25 mV with TA = 0°C to 60°C • Fixed Overvoltage Protection Thresholds: 4.30 V, 4.
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