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TIDA-00252

Voltage Based Gas Gauge Reference Design

Design files

TIDA-00252

Design files

Overview

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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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Test report — TIDA-00252
TIDU627.PDF (157 KB)

Test results for the reference design, including efficiency graphs, test prerequisites and more

download Assembly drawing — TIDA-00252
TIDRBL0.PDF (115 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-00252
TIDRBK9.PDF (79 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download PCB layout — TIDA-00252
TIDRBL1.PDF (202 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-00252
TIDRBK8.PDF (118 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Battery fuel gauges

BQ27621-G1 — System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge

Data sheet: PDF | HTML

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Hardware development

Evaluation board

BQ27621EVM-G1 — System-Side Fuel (Gas) Gauge Dynamic Voltage Correlation Evaluation Module

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 (...)

EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00252 — Voltage Based Gas Gauge Reference Design
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BQ27621EVM-G1 — System-Side Fuel (Gas) Gauge Dynamic Voltage Correlation Evaluation Module

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Hardware development
Reference design
TIDA-00252 — Voltage Based Gas Gauge Reference Design
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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* Test report TIDA-00252 Test Results Oct 27, 2014

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