BQ41Z90-FW

BQ41Z90 family device firmware for 3-16 series Li-ion battery pack manager | battery fuel(gas)

BQ41Z90-FW

Downloads

Downloads

Firmware

BQ41Z90-FW BQ41Z90 device firmware

Supported products & hardware

Supported products & hardware

Products
Battery fuel gauges
BQ41Z90 3 to 16 series Li-ion highly integrated battery fuel gauge, monitor and protector
Download options

BQ41Z90-FW BQ41Z90 device firmware

close
Latest version
Version: 0.02.08
Release date: Jul 30, 2025
lock = Requires export approval (1 minute)
Products
Battery fuel gauges
BQ41Z90 3 to 16 series Li-ion highly integrated battery fuel gauge, monitor and protector

Release Information

BQ41Z90-FW is a firmware-only release that can be flashed onto any existing BQ41Z90 hardware. The firmware incorporates the patented Dynamic Impedance Track™ technology to create a pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 2 to 16 series cell Li-ion, LiFePO 4, Li-polymer, and NiMH battery packs.

Using its integrated high-performance analog peripherals, the BQ41Z90-FW firmware measures and maintains an accurate record of available capacity, voltage, current, temperature, and other critical parameters in Li-ion, LiFePO 4, Li-polymer, and NiMH batteries and reports this information to the system host controller over an SMBus v3.2 compatible interface. SHA-1, SHA-256, and ECC authentication, with secure memory for authentication keys, enables identification of genuine battery packs.

Features

The BQ41Z90-FW firmware is usable on any previous version of the BQ41Z90 hardware

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support.