Wireless Power Transmitter IC - BD57020MWV

BD57020MWV 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. BD57020MWV works as a controller in the wireless power transmitter based on the Qi compliant by using it with a general-purpose microcomputer. BD57020MWV is applied to Qi ver.1.2 (Low Power and Medium Power).

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD57020MWV-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] 20.0
Input Adapter Voltage (Min.)[V] 4.6
Comment Version 1.2
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 85
    • WPC / Qi ver.1.2
      (Low Power and Medium Power) support.
    • Half Bridge / Full Bridge inverter
    • Foreign object detection
    • GPIO 4CH
    • I²C bus interface
    • 5.0mm x 5.0mm UQFN package 40 pin
Other New/Updated Products Relating to Power Management
PART NUMBER Product Name Package Datasheet Distribution Inventory
BD57021MWV Wireless Power Transmitter IC UQFN040V5050   Buy Sample
New Products:
Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.