TIDA-00318 Reference Design

Texas Instruments

Qi (WPC) Compliant Wireless Charger for Low Power Wearable Applications


TI design TIDA-00318 is suitable for low power wearable device including a Qi compliant wireless receiver (bq51003)and ultra low current 1 cell Li-ion linear charger (bq25100). It features an ultra small size (5x15mm2), capable of low charging currents down to 10mA and up to 250mAwith support of termination currents as low as 1mA. Current design is designed for 135mA charge current application.

  • Small Size: 5x15(mm2)
  • Adjustable charging current: 10~250(mA)
  • Supports 1mA Charge Termination Currents
  • <75nA battery leakage current
  • Barcode Scanner
  • Blood Glucose Monitors
  • EPOS, ECR and Cash Drawer
  • Electronic Shelf Label
  • Portable Data Terminal
  • Smart Clothing
  • Smart Watch
  • Virtual / Augmented Reality Headsets & Glasses
  • Wearable Fitness & Activity Monitor
Product Categories
  • Power Management


Part Number Name Companion Part
BQ51003 BQ51003 Buy Datasheet
BQ25100YFP BQ25100YFP Buy Datasheet
BQ25100AYFP BQ25100AYFP Buy Datasheet
BQ25100HYFP BQ25100HYFP Buy Datasheet
BQ25101YFP BQ25101YFP Buy Datasheet
BQ25101HYFP BQ25101HYFP Buy Datasheet

Bill Of Materials

Download the bill of materials for TIDA-00318 Download


Quickly understand overall system functionality.

Download the schematic for TIDA-00318

Test Data

Get results faster with test and simulation data that's been verified.

Download the test file for TIDA-00318

Other Documents

Title Updated Type Size (KB)
TIDA-00318 Gerber 27 Aug 2014 ZIP 92
TIDA-00318 Altium 27 Aug 2014 ZIP 192
TIDA-00318 PCB 27 Aug 2014 PDF 22
TIDA-00318 Assembly Drawing (Rev. 1) 27 Aug 2014 PDF 29
TIDA-00318 Assembly Drawing 27 Aug 2014 PDF 238
TIDA-00318 BOM 27 Aug 2014 PDF 199
TIDA-00318 Schematic and Block Diagram 27 Aug 2014 PDF 139