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bq29442 - VOLTAGE PROTECTION

Download the bq29442 datasheet PDF. This datasheet also covers the bq29440 variant, as both devices belong to the same voltage protection family and are provided as variant models within a single manufacturer datasheet.

Description

The bq2944x is a secondary overvoltage protection IC for 2-series, 3-series, or 4-series cell Li-Ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit.

The voltage of each cell in a battery pack is compared to an internal reference voltage.

Features

  • 1.
  • 2-Series, 3-Series, or 4-Series Cell Secondary Protection.
  • External Capacitor-Controlled Delay Timer.
  • Low Power Consumption ICC < 2 µA Typical [VCELL(ALL) <.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (bq29440-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
bq29440 VOLTAGE PROTECTION
bq29441 VOLTAGE PROTECTION
bq29443 VOLTAGE PROTECTION
bq29449 VOLTAGE PROTECTION
bq2944L0 VOLTAGE PROTECTION

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
bq29440, bq2944L0 bq29441, bq29442, bq29443, bq29449, bq2944L9 www.ti.com SLUSA15C – JUNE 2010 – REVISED NOVEMBER 2010 Voltage Protection for 2-Series, 3-Series, or 4-Series Cell Li-Ion Batteries (Second-Level Protection) Check for Samples: bq29440, bq2944L0, bq29441, bq29442, bq29443, bq29449, bq2944L9 FEATURES 1 • 2-Series, 3-Series, or 4-Series Cell Secondary Protection • External Capacitor-Controlled Delay Timer • Low Power Consumption ICC < 2 µA Typical [VCELL(ALL) < VPROTECT] • High-Accuracy Overvoltage Protection: ±25 mV with TA = 0°C to 60°C • Fixed Overvoltage Protection Thresholds: 4.30 V, 4.35 V, 4.40 V, 4.45 V, 4.