TI Korea (CEO Kent Chon, www.ti.com/ww/kr ) May 29, 2014 – TI (CEO Kent Chon) announced the industry's most power-efficient 5W wireless power receiver. These new products comply with the Wireless Power Consortium (WPC) Qi 1.1 standard. TI's latest bq51020 and bq51021 enable consumers to charge Qi-compatible mobile phones, tablets, power banks, and other electronic devices faster, more efficiently, and with lower heat generation than any other wireless power solution.

The bq51020 and bq51021 single-chip receivers feature a programmable output voltage of up to 8V and low-on-resistance MOSFETs, reducing power loss by 50% compared to existing solutions on the market. Additionally, the bq51021 has an integrated I2C interface, allowing system designers to implement a unique “pad-detect” function that aligns the charger and receiver positions for better user convenience, as well as foreign object detection capabilities.

The bq51020 and bq51021 enable high-speed, low-heat wireless charging with maximum efficiency. They achieve up to 96% power efficiency, reduce power loss by 50% with variable output voltage, and reduce temperature rise by up to 35% compared to other solutions. A single-chip 5W receiver that provides rectification, regulation, digital control, and communication, supports the Qi 1.1 standard, and is a 3.6mm x 2.9mm x 0.5mm single-chip wireless power receiver that is induct-free and boasts an ultra-small solution size of 75mm².

This newly released product is an addition to the bq51221 family, the industry's first dual-mode 5W wireless power receiver supporting Qi and PMA (Power Matters Alliance) standards, which TI launched last February. TI recently released the bq51003 2.5W receiver for small portable devices and wearable applications. With these new additions to the portfolio, designers can order the bq51020EVM-520, bq51221EVM-520, and bq51003EVM-765 evaluation modules to start wireless power design immediately.