Wireless Power Transmitter for 15W Solution


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The RT3181C is a highly integrated and scalable solution for wireless power transmitter applications. The RT3181C is designed to support the major wireless power standards - WPC (Qi). The RT3181C can be configured to various types of transmitter according to WPC specification.

The RT3181C supports fully integrated design for WPC Base Power Profile A11 transmitter which could be powered from a 5V output of USB or AC adaptor in low power applications. The RT3181C is able to support WPC MP-A5/MP-A11 transmitter design with external power stage for medium power applications.

The RT3181C can be paired with a Smart AC adapter from selected suppliers to provide reduced system cost and optimal efficiency over the range of power usage.


Key Spec.
Status Active
Power Rating (W) 15
Battery Charging Function No
ComplianceVer WPC 1.2
Function Transmitter
Features Adjustable Frequency;OCP;OVP
Package Type WQFN6x6-48
  • High Integration with Internal H-Bridge Power Stage and Current Sense Amplifier, Optimized for LP-A11 Solution
  • High Power with External Power Stage, Optimized for MP-A5/MP-A11 Solution
  • No Current Transformer Required
  • Low Quiescent Current Plus
    ► Selectable Ping Cycle in Custom Applications
    ► Low Current Sleep Mode Options Including "Off" State with Wake Up I/O Pin
  • Programmable Thermal Protection
  • Support Foreign Object Detection
  • Support Fan Speed Control
  • Notifications -
    ► 1 Buzzer
    ► 2 LEDs, Resistor Programmable
  • I2C Host Applications Interface (Option)
  • Internal Watchdog Timer
  • WQFN-48L 6x6mm Package
TitleLast UpdateShareDownload
Wireless Power Transmitter for 15W Solution2020/07/15