Wireless Power    Certified

Active-Semi’s WPC Qi-Certified (version 1.1.2) single-IC based wireless power transmitter solution provides customers with the highest efficiency and lowest stand-by power design available today. The solution works for charging 5W USB powered devices such as, smart phones, mobile devices and portable electronics. This solution also offers the smallest BOM count to reduce the design footprint.

Active-Semi WPC Solution kit EP5220HPA11-1 features PAC5220WP Power Application Controller™ IC which handles all functions of wireless charging including receiver selection & identification, communication & control, power transfer, guided placement through blinking LED, and audio feedback using a piezoelectric buzzer. It also monitors input and output power for load regulation, uses WPC version 1.1 Foreign Object Detection (FOD), and provides over-current and over-temperature protection. 

The turnkey solution and reference design comes with preloaded firmware for power transfer, protection, guided positioning and other functions to perform right out-of-box, and allow customers to perform fast prototyping of their end-product. In addition, the preloaded firmware also allows customization of user features, enabling customers to differentiate their end-products.

Power Application Controller™ IC technology, which is at the heart of this solution, also offers excellent scalability to other WPC configurations, is capable of supporting much higher power levels beyond 5W, and is also suitable for implementing other standards such as PMA using the same platform.

EP5220HPA11-1 and PAC5220WP IC from PAC™ IC Family are now in production. EP5220HPA11-1 is our High Performance BOM solution and the EP5220LCA11-1 is our Low-Cost BOM solution.

For more details and samples, email sales@active-semi.com.

PAC5220WP based Wireless power A11 Solution Kit
EP5220HPA11-1 for High-Performance BOM version, EP5220LCA11-1 for Low-Cost BOM version




  • Up to 75 percent transmitted efficiency
  • Ultra-low standby power under 50mW
  • Excellent EMI performance meeting FCC Class B
  • Complete WPC-1.1.2 Firmware including Foreign Objection Detection (FOD), guided positioning with LEDs and Buzzer
  • Lowest solution cost bill of material including optional Active-Semi FETs
  • Built-in surge protection
  • Support for wide-input DC (up to 54V) and universal AC input with on-chip SMPS controller
  • Scalable MCU based solution to enable products with multi-coils, multi-modes, and medium / higher power levels up to 150W
  • Platform scalable to PMA in dual-mode

Active-Semi WPC 5V Wireless Charger Solution Kit

Other Wireless Power Evaluation Kits

There are several different evaluation kits for Wireless Power Charging all using Active-Semi's PAC5220WP IC.



  • PAC5220WP Based Single-IC Solution
  • AC Line Input. Integrated Flyback
  • Regulator Generates 19V
  • Half-H Bridge Coil Driver
  • Ref Design Integrates Alarm Clock and LCD Display



  • PAC5220WP Based Single-IC Solution
  • 12 VDC Input. No Additional Power Supply Components Needed
  • 3 Half-H Bridge Coil Drivers
  • Also Works With Single A6 Coil



  • PAC5220WP Based Single-IC Solution
  • 8V - 40V Wide Input, Integrated Buck Converter Generates 5V
  • Full H-Bridge Coil Driver
  • Tiny 2" x 2" PCB

Products Supporting Wireless Power Applications

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