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bq76930 Datasheet 3-series To 15-series Cell Battery Monitor

Manufacturer: Texas Instruments

Overview: BQ76920, BQ76930, BQ76940 SLUSBK2I – OCTOBER 2013 – REVISED MARCH 2022 BQ769x0 3-Series to 15-Series Cell Battery Monitor Family for Li-Ion and Phosphate Applications.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies.

The BQ769x0 is designed with low power in mind: Subblocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.

The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs.

Key Features

  • AFE monitoring features.
  • Pure digital interface.
  • Internal ADC measures cell voltage, die temperature, and external thermistor.
  • A separate, internal ADC measures pack current (coulomb counter).
  • Directly supports up to three thermistors (103AT).
  • Hardware protection features.
  • Overcurrent in Discharge (OCD).
  • Short Circuit in Discharge (SCD).
  • Overvoltage (OV).
  • Undervoltage (UV).
  • Secondary protector fau.

More Datasheets from Texas Instruments

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