Wireless Power Reference Designs


IDT Wireless Power


Integrated Device Technology (IDT) is an industry-leading manufacturer of wireless charging IC solutions. IDT selected Würth Elektronik as the wireless power coil partner for its 5W, Qi-compliant wireless power reference kits.

IDT's turnkey wireless power kits make integrating wireless charging easy, affordable and practical for a broad range of consumer electronics. The new Qi-compliant transmitter and receiver reference kits deliver plug-and-play ease of integration, enabling engineers to incorporate wireless charging capabilities into their designs in a matter of hours.

IDT P9038-R-EVK Receiver Board

IDT P9025-R-EVK Transmitter Board


LTC4123 - Low Power Wireless Charger for Hearing Aids

Typical Application: Complete Wireless Charging Solution for a Hearing Aid

Features

  • Complete Low Power Wireless NiMH Charger
  • Low Minimum Input Voltage: 2.2V
  • Small Total Solution Volume
  • 1.5V, 25mA Linear Single-Cell NiMH Charger
  • Temperature Compensated Charge Voltage
  • Integrated Rectifier with Overvoltage Limit
  • Zinc-Air Battery Detection
  • Reverse Polarity Protection
  • Thermally Enhanced 6-Lead (2mm × 2mm) DFN package


STEVAL - ISB027V1
Qi A11 wireless charger transmitter evaluation board based on STWBC

Features

  • STWBC digital controller
  • 5 W output power
  • Qi 1.1.2 A11 certified
  • Foreign object detection (FOD)
  • Resistive and capacitive modulation
  • Active presence detector
  • Turn-key & FW APIs
  • complete kit (IC, firmware, tools)
  • RoHS compliant

Semtech Wireless Power

Semtech is a leading supplier of high performance analog and mixed-signal semiconductors and advanced algorithms. Semtech selected Würth Elektronik as the wireless power coil partner for its 20 W mid-power wireless power reference kits.

Semtech’s turnkey LinkCharge® offering make integrating wireless charging easy, affordable and practical for a broad range of infrastructure, after-market, medical consumer devices and custom electronics applications. The new 20 W transmitter and receiver reference kits use Semtech’s LinkCharge 20 standard to deliver plug-and-play ease of integration, enabling engineers to incorporate wireless charging capabilities into their designs in a matter of hours.

Features

  • 16‐21 V Input / 20 W Output Power
  • WPC1.2.2 compliant
  • Supports various smartphones fast charging protocols (with latest firmware)
  • Supports up to 15 W output power with WPC 1.2 receivers
  • Supports up to 20 W output power with Semtech receivers

The User Manual, BOM, and Schematics are available for download here.