500mA Wireless Charger BoosterPack with Gauge Reference Design


Design files


The TIDA-00669 is a BoosterPack™ reference design that provides a wireless charger and battery management to power any TI LaunchPad™ (www.ti.com/launchpad). This is a highly-integrated power management reference design that is well-suited for low-power applications. The primary method of storage is an external Li-Polymer rechargeable battery.

  • Low-cost off-the-shelf coil with onboard wireless receiver
  • External Li-Ion or Li-Polymer battery 1 Ah to 2 Ah
  • 190-µA quiescent current
  • 3.3-Vdc buck/boost to power the launchpad
  • 5-V boost to power support circuitry
  • Stackable design allows for creating a complete solution
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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.

TIDUB31.PDF (2386 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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

TIDRJD1.ZIP (2496 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 charger ICs

BQ51050BQi (WPC) Compliant Highly integrated Secondary-Side Direct Lithium Ion charger.

Data sheet: PDF | HTML
Battery fuel gauges

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

Data sheet: PDF | HTML
Battery protectors

BQ2970Li-Ion/Li Polymer Advanced Single-Cell Battery Protector IC Family

Data sheet: PDF | HTML
Boost converters (integrated switch)

TPS612523.5-MHz, 1.5-A, 92% efficient boost converter, adjustable input current Limit, ±20% current accuracy

Data sheet: PDF | HTML
N-channel MOSFETs

CSD85301Q220-V, N channel NexFET™ power MOSFET, dual SON 2 mm x 2 mm, 27 mOhm, gate ESD protection

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide 500mA Wireless Charger Booster Pack With Gauge Design Guide Nov. 18, 2015

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