wireless electronic power supply controller / IC
BD57015GWL, BD57020MWV ROHM Semiconductor



  • Options:

    for wireless electronics, IC


Features 1:Compliant with the medium power specifications of WPC's Qi standard
ROHM's new chipset complies with the latest WPC's Qi standard for medium power transmission, ensuring support for 10W class wireless charging. Of course compatibility with the existing low-power specifications (<5W) is provided. This makes it possible to increase charging current by up to 2x compared with existing standards, expanding applicability to smartphones, tablets, and the like.

[Transmission / Charger Side : BD57020MWV(15W transmission power)]
Qi-compliant transmitter configured using LAPIS Semiconductor's low power (U8) MCU

[Receiver / Terminal Side : BD57015GWL(10W receiving power)]
・Variable LDO output voltage : 5-10V
・Automatic Qi / PMA standard detection

Features 2:Built-in Foreign Object Detection (FOD)
Built-in Foreign Object Detection (FOD)
The Qi standard includes requirements for foreign objection detection. To meet this need, ROHM integrates foreign object detection for medium power applications, providing a higher level of safety during device operation.

Features 3:Complies with both Qi and PMA standard receiving protocols
To ensure greater compatibility, the chipset is also compliant with the international PMA standard for the receiver/terminal side.
・Variable LDO output voltage : 5-10V
・Automatic Qi / PMA standard detection