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BQ41Z90-FW

BQ41Z90 device firmware

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Latest version
Version: 0.02.05
Release date: Jan 14, 2025
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bq41z90FirmwareBundle-0.02-windows-installer.exe  — 6283 K

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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