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Overview
| Topology | Full-Bridge Converter symmetrical isolated |
| Input voltage | 5 V |
| Output 1 | 3.3 V |
| IC 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).
Features
- 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
Typical applications
- Cradle for charge stand
- PC
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q(%) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-WPCC Wireless Power Transfer Transmitter Coil, Qi - A11; MP-A11, 53 x 53 x 6 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Transmitter Coil | ComplianceQi - A11; MP-A11 | Size53 x 53 x 6 mm | Inductance6.3 µH | Rated Current13 A | DC Resistance25 mΩ | Self Resonant Frequency11 MHz | Q-Factor80 % |