BQ27Z561-R2-DEVICE-FW

BQ27Z561 firmware: impedance track battery gas gauge solution for 1-s cell li-ion battery

BQ27Z561-R2-DEVICE-FW

Downloads

Overview

The BQ27Z561-R2-DEVICE-FW is a firmware (FW) release that can be flashed onto any existing hardware such as the BQ27Z561 or BQ27Z561-R1 product. The firmware incorporates the patented Impedance Track™ technology to create a pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 1-series cell li-ion and li-polymer battery packs.

Using its integrated high-performance analog peripherals, the BQ27Z561-R2-DEVICE-FW firmware enables the device and measures and maintains an accurate record of available capacity, voltage, current, temperature, and other critical parameters in li-ion or li-polymer batteries, and reports this information to the system host controller.

SHA-2 authentication, with secure memory for authentication keys, enables identification of genuine battery packs.

Features
  • Supports pack-side gauging including enhanced state of health (SOH) algorithm
  • Fast QMax update option based on predicted OCV
  • SHA-256 authentication responder for increased battery pack security
  • Sophisticated charge algorithms:
    • JEITA
    • Enhanced charging
    • RSOC() charging compensation option
  • Added hibernate mode to enable < 3uA power mode

Downloads

Application software & framework

BQ27Z561-R2-DEVICE-FW BQ27Z561 device firmware: impedance track battery gas gauge solution for 1-s cell li-ion battery packs

Version: V 2.01
Release date: 20-02-2020
Battery fuel gauges
BQ27Z561 Impedance Track™ integrated circuit gas gauge solution for 1-series BQ27Z561-R1 Impedance Track™ battery gas gauge solution for 1-series cell Li-ion battery packs BQ27Z561-R2 Impedance track battery gas gauge solution for 1-series cell li-ion battery packs

Technical documentation

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* User guide BQ27Z561-R2 Technical Reference Manual (Rev. B) May 07, 2020
Application note BQ27Z561-R1 to BQ27Z561-R2 Change List Feb. 26, 2020

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