ROHM

BD57021MWV

Wireless Power Transmitter IC

Topology: Full-Bridge
Input Voltage (min.): 5.00 V
Input Voltage (max.): 5.00 V

Original publication on 2015-12-10, revision 004

Description

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

Characteristics

  • 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

Products

  Order Code SPEC Product series Compliance Bauform L
(µH)
P
(W)
IR DC
(A)
RDC max.
(mΩ)
fres
(MHz)
Q Samples
760308111 PDF WE-WPCC Wireless Power Transfer Transmitter Coil Qi - A11; MP-A11 53 x 53 x 6 mm 6.3 200 13 25 20 80