STMicroelectronics, a global semiconductor leader serving customers across the spectrum of electronics applications, has launched a 70W high-power chipset that delivers faster wireless charging and flexible power sharing capabilities for a wide range of portable and mobile devices in home, office, industrial, medical, and in-vehicle applications.

ST announced on the 30th that it has launched the STWLC98 integrated wireless power receiver.

When combined with the STWBC2-HP transmitter IC, this product provides a complete transceiver system capable of delivering up to 70W to the receiver with high system efficiency.

The STWLC98 fully charges high-end smartphones with high-capacity batteries in less than 30 minutes.

Additionally, the convenient ultra-fast charging capability without cable, socket, or connection restrictions can be expanded to numerous new applications and environments.

Additionally, contactless charging capabilities enable product developers to simplify enclosure design, reduce cost and complexity while more easily implementing new slim styles and eliminating socket-related issues such as contamination.

The STWLC98 complies with the Qi EPP 1.3 wireless charging standard commonly used in the smartphone industry, and comes with an embedded OS that simplifies Qi 1.3 standalone certification, as well as built-in protection features.It is managed by a 32bit Arm® Cortex®-M3 core that supports various functions.

On the transmitter side, the STWBC2-HP can work with ST's STSAFE-A110 Secure Element, storing official Qi certificates and providing authentication using state-of-the-art cryptography.

Support for ST's innovative STSC (ST Super Charge) protocol enables fast charging at up to 70W power transfer rate.

The STWLC98 features ST's unique Adaptive Rectifier Configuration (ARC) mode, which improves the system's power delivery spatial freedom and ping-up in both horizontal and vertical directions without requiring any hardware or coil optimization changes.

Activating ARC mode, which converts the entire surface of the transmitter into a charging area, increases the ping-up distance by up to 50% in all directions.

The STWLC98 works directly with the STWBC2-HP, which includes a USB-PD interface, a digital buck/boost DC/DC converter, a full-bridge inverter, three half-bridge drivers, and voltage, current, and phase sensors. Controlled by a Cortex-M0+ core, the STWBC2-HP implements a patented high-speed PID loop and also supports the STSC protocol.

ST's new 70W wireless charging chipset enables scalable solutions for deployment in devices such as smartphones, tablets, laptops, power banks, True Wireless Stereo (TWS) devices, Bluetooth® speakers, and AR/VR headsets.

Designers can also extend the fast and convenient wireless charging capabilities to medical devices such as monitors and medication pumps, as well as cordless power tools, mobile robots, drones, electric bicycles, and more.

The chipset is suitable for automotive applications, including in-vehicle charging solutions and wireless charging of various modules mounted on vehicles.

The STWLC98 is available in a 90-bump, 0.4mm-pitch WLCSP package measuring 4.3mm x 3.9mm, with pricing starting at $2.60. The STWBC2-HP is available in an 8mm x 8mm VFQFPN 68-pin, 0.4mm-pitch package, with pricing starting at $3.30. Contact your ST sales office for sample requests and additional pricing options.