Gauge Booster Pack Reference Design


Design files


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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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDUAC4.PDF (1263 K)

Reference design overview and verified performance test data

TIDRG61.PDF (138 K)

Detailed schematic diagram for design layout and components

TIDRG62.PDF (51 K)

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

TIDRG63.ZIP (1392 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Battery fuel gauges

BQ27421-G1System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge

Data sheet: PDF | HTML
Analog switches & muxes

TS3A441590.4-Ω on-state resistance, 3.3-V, 2:1 (SPDT), 4-channel analog switch

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Gauge Booster Pack Design Guide Jul. 21, 2015
Technical article Take a deep dive and maximize your battery’s potential Nov. 02, 2015

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