Gauge Booster Pack Reference Design
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Description & Features

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Key Document


The TIDA-00586 reference design is a gauge that has been designed as a booster pack to fit on the TI Launchpad development boards. The use of this this board for development will reduce the time spent in design and test of the bq27421 gauge IC. You can select any appropriate charger to charge your battery. Attach your system to the gauge and you can monitor the current, voltage, SOC, and SOH of the battery under test.

  • Booster pack gauge designed to fit Launchpad development boards
  • Artificail aging impedance array
  • Two board mux to allow stacking two gauge booster pack boards
  • Measure and track voltage, current. SOC and SOH of your battery

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ27421-G1  System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
TS3A44159  0.4-Ω on-state resistance, 3.3-V, 2:1 (SPDT), 4-channel analog switch  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
BQ27421-G1 Download -
TS3A44159 Download Download
Download Download
Download Download

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (1)
Title Type Size (KB) Date
PDF 1263 21 Jul 2015
Design files (4)
Title Type Size (KB) Date
ZIP 372 21 Jul 2015
ZIP 1392 21 Jul 2015
PDF 51 21 Jul 2015
PDF 138 21 Jul 2015

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