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Voltage Based Gas Gauge Reference Design
TIDA-00252
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Description

The Texas Instruments bq27621-G1 is an easy to configure microcontroller peripheral that provides system-side fuel gauging for single-cell Li-ion batteries. This device requires minimal user configuration and system microntroller development. The design will provide State of Charge indication for Li-Ion batteries.

Features
  • Eliminates the need for a sense resistor;
  • Powered directly from battery with integrated LDO;
  • Supports both embedded and removable batteries; Easy to configure based on the Dynamic Voltage Correlation algorithm

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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ27621-G1  System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules

Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 101 27 Oct 2014
Design files (4)
Title Type Size (KB) Date
PDF 201 27 Oct 2014
PDF 115 27 Oct 2014
PDF 79 27 Oct 2014
PDF 118 27 Oct 2014
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
System-Side Fuel (Gas) Gauge Dynamic Voltage Correlation Evaluation Module  BQ27621EVM-G1  Evaluation board 

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