Texas Instruments BQ41Z50EVM User Manual

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EVM User's Guide: BQ41Z50EVM
BQ41Z50 2-S, 3-S, and 4-S Cell Li-Ion Battery Pack
Manager Evaluation Module with Dynamic Z-Track™
Description
The BQ41Z50 Evaluation Module (EVM) is a system
board created with the intent to evaluate the
functionality of the BQ41Z50 Fuel Gauge within
applications powered by multi-cell battery systems.
The EVM includes a BQ41Z50, a current sense
resistor, four thermistors, three LEDs, and header
options to allow for proper tailoring to the intended
application.
This document serves as a comprehensive guide on
how use the BQ41Z50EVM to configure, test, and
evaluate the performance of the BQ41Z50 in the
user's intended application through sections such as
the Quick Start Guide for initial test setup, the IT-DZT
Guide for gauging algorithm configuration, along with
Hardware and Software sections for further device
configuration.
Section IT-DZT Guide To Gauging
and explanation of the Dynamic Z-Track™ (IT-DZT)
algorithm. It also goes over how to configure the
gauge for a dynamic load profile.
SLUUD32A – JUNE 2024 – REVISED APRIL 2025
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Features
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is an overview
BQ41Z50 2-S, 3-S, and 4-S Cell Li-Ion Battery Pack Manager Evaluation
Copyright © 2025 Texas Instruments Incorporated
Complete evaluation system for the BQ41Z50EVM
Li-Ion Battery Pack Manager Evaluation
Module and BQ296103 independent overvoltage
protection IC.
Populated circuit module for quick setup
Software that allows data logging for system
analysis
Note
The BQ296103 is a 2-4s Overvoltage
Protector with LDO Output, which is
considered a secondary protector in the
BQ41Z50EVM architecture design. Please
note that the BQ41Z50 is equipped to
operate independently of the BQ296103.
Module with Dynamic Z-Track™
Description
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