bq76930 - Texas Instruments

bq76930 3-series to 15-series cell battery monitor

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 contr.

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 fault detection
• Additional features
  – Integrated cell balancing FETs
  – Charge, discharge low-side NCH FET drivers
  – Alert interrupt to host microcontroller
  – 2.5-V or 3.3-V output voltage r.