Industry’s First Multi-Mode WPC Compliant Wireless Power Receiver IC

Topology: Buck
Input Voltage (min.): 6.00 V
Input Voltage (max.): 19.00 V
Output 1: 5.25 V / 1.000 A

Original publication on 2013-02-15, revision 0.2


The IDTP9020 is a highly-integrated single-chip WPC-compliantwireless power receiver IC. The device receives an AC powersignal from a compatible wireless transmitter and converts it intoa regulated 5V output voltage which can be used to powerdevices or supply the charger input in mobile applications. TheIDTP9020 integrates a high-efficiency synchronous full-bridgerectifier, high-efficiency synchronous buck converter, and controlcircuits used to modulate the load to transmit WPC-compliantmessage packets to the transmitter station to optimize powerdelivery. Power delivery is limited to 5W in accordance with theQi specification.The device includes over-temperature/voltage protection and aForeign Object Detection (FOD) method to protect the basestation and mobile device from over-heating in the presence of ametallic foreign object. Fault conditions associated with powertransfer are managed by the embedded MCU, which alsocontrols status LEDs to indicate operating and fault modes


  • Single-Chip 5W Solution for Wireless Power Consortium-(WPC) “Qi” Compliant Power Receiver
  • Conforms to WPC Specification Version 1.1 Specifications
  • Integrated Synchronous Full-Bridge Rectifier
  • Integrated Synchronous Buck Converter
  • Embedded MCU, ROM, RAM, & ADC
  • Integrated USB Adaptor Switch for USB Charging
  • Closed-Loop Power Transfer Control between Base
  • Station and Mobile Device
  • Security and Encryption up to 64 bit
  • Foreign Object Detection (FOD)
  • Over-Temperature/Voltage Protection
  • Compatible with all WPC Receiver Coils Including
  • Proprietary and PCB-based Coils
  • Open-Drain LED Indicator Outputs
  • I2C Interface


  Order Code SPEC Product series L
RDC typ.
RDC max.
Montageart H
Actuator-Farbe VPE Samples
74437324047 PDF WE-LHMI SMT Power Inductor 4.7 2.2 4 95 105 31 SMT
434121043816 PDF WS-TASV SMT Tact Switch 6.0x3.5 mm 4.3 160 Black 1800

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