Wireless Power Transmitter IC - BD57021MWV

BD57021MWV is an integrated IC for the wireless power transmitter. This device is composed of inverters for the coil drive, controller for the communication of the Qi compliant and demodulating circuit, GPIO, TCXO buffer, and I²C interface. BD57021MWV works as a controller in the wireless power transmitter based on the Qi compliant by using it with a general-purpose microcomputer. BD57021MWV is applied to Qi ver.1.2 (Low Power).

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD57021MWV-E2 Active UQFN040V5050 2500 2500 Taping Yes
Input Power Supply Voltage (Max.)[V] 5.3
Input Power Supply Voltage (Min.)[V] 4.2
Input Adapter Voltage (Max.)[V] 5.3
Input Adapter Voltage (Min.)[V] 4.2
Output Type LP-A11
Comment Version 1.1
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 85
    • WPC / Qi ver.1.2 (Low Power) support.
    • Half Bridge / Full Bridge inverter
    • Foreign object detection
    • GPIO 4CH
    • I²C bus interface
    • 5.0mm x 5.0mm UQFN package 40 pin
Technical Data
Application Note

Thermal Resistance