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Qi (WPC) Compliant Wireless Charger for Low Power Wearable Applications
TIDA-00318
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Description

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.

Features
  • Small Size: 5x15(mm2)
  • Adjustable charging current: 10~250(mA)
  • Supports 1mA Charge Termination Currents
  • <75nA battery leakage current.

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Schematic/Block Diagram

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Design Files

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ25100  Standalone 1-cell, 250-mA linear battery charger with 4.2-V charge voltage and prog. pre-charge  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
BQ25100A  Standalone 1-cell, 250-mA linear battery charger with 4.3-V charge voltage and prog. pre-charge  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
BQ25100H  Standalone 1-cell, 250-mA linear battery charger with 4.35-V charge voltage and prog. pre-charge  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
BQ25101  Standalone 1-cell 250-mA linear battery charger, 4.2-V charge voltage and charging status indication  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
BQ25101H  Standalone 1-cell 250-mA linear battery charger with 4.35-V charge voltage & charging indication  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
BQ51003  BQ51003 Wireless power Receiver  Battery management ICs  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
BQ25100 Download -
BQ25100A Download -
BQ25100H Download -
BQ25101 Download -
BQ25101H Download -
BQ51003 Download -

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1189 27 Aug 2014
Design files (7)
Title Type Size (KB) Date
ZIP 92 27 Aug 2014
ZIP 192 27 Aug 2014
PDF 22 27 Aug 2014
PDF 29 27 Aug 2014
PDF 238 27 Aug 2014
PDF 199 27 Aug 2014
PDF 139 27 Aug 2014
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
Battery Charge Solution for Single-Cell Li-Ion Battery-Powered Systems Evaluation Module  BQ25100EVM-654  Evaluation board 

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