Wireless Charging Receiver by STMicroelectronics

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The STWBC from STMicroelectronics is a digital controller that controls power transfer up to 5 W in wireless battery charger (WBC)-enabled applications such as phones, wearables, and other battery-powered devices. This chip has been designed to support Qi 1.1.2 A11 and PMA specifications.

The transmitter is responsible for controlling the transmitting coil and generating the correct amount of power requested by the RX. The RX continuously provides the transmitter with the correct power level requested, by modulating the transmitter carrier through the controlled resistive or capacitive load.

The STWBC has an internal 96 MHz clock and supports both half-bridge and full-bridge topologies. This wireless transmitter IC has a flash memory of 32 KB and 1 KB of E2PROM data memory. It integrates foreign object detection (FOD), which allows the detection of metal objects close to the receiver. This chip is available in a 5 x 5 x 1 mm VFQFPN package.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
  • Description
    5 W Digital Controller for Wireless Battery Charging Applications

General Parameters

  • Application
    Mobile, Wearable, Sports Gear, Medical
  • Compliance
    WPC/Qi, PMA/Airfuel
  • WPC Standard
    WPC 1.1.2
  • Power
    5 W
  • Input Voltage
    5 V
  • Interface
    GPIOs, I2C, UART, APIs
  • Package
  • Dimension
    5 x 5 x 1mm
  • Operating Temperature
    -40 to 105 Degree C

Technical Documents

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