BQ35100PWR Texas Instruments

BQ35100PWR Texas Instruments Profile

The BQ35100PWR is a battery fuel gauge integrated circuit (IC) designed and manufactured by Texas Instruments. It is a battery management IC that enables accurate state-of-charge (SOC) and remaining capacity estimation for rechargeable lithium-ion (Li-ion) and Lithium-Polymer (Li-polymer) batteries.

This IC uses the patented Impedance Track ™ technology to measure battery SOC in real-time, with high accuracy (> 99.5%) and low drift, providing stability and longevity to the battery packs.

The BQ35100PWR monitors advanced battery health information, including voltage, temperature, and impedance, which allows fine-grained diagnostic capabilities to extend the life of the batteries. The device runs on an I2C interface with a host system, providing commands for easy customization of safety settings and charge/discharge control algorithms.

Furthermore, its small package size and low-power characteristics allow it to fit into handheld devices.

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Alternative or similar parts to BQ35100PWR

  1. MAX17263/64: This fuel gauge IC from Maxim Integrated offers a similar SOC estimation algorithm with ultra-low power consumption and compact package size. It is also I2C-compatible and supports multiple battery chemistries.
  2. DS2786G: A battery monitor integrated circuit from Maxim integrated with features equivalent to SOC, voltage, and temperature monitoring. It supports only Li-ion batteries.
  3. LTC6803-2: A Stackable battery monitor IC from Analog Devices that provides an essential cell monitoring solution with high voltage isolation up to 100V. This increases design flexibility allowing connecting several cells in series to meet higher voltage applications.
  4. BQ35160: This battery fuel gauge IC from Texas Instruments offers a similar SOC estimation algorithm with the capacity for up to two external thermistors that provide temperature measurements.

It is important to carefully review the specifications and requirements of the intended application and select an alternative IC that matches the necessary functionalities and features.