In 2023, the Wireless Power Consortium (WPC) introduced Magnetic Power Profile (MPP) technology, upgrading the charging standard to Qi2.0. This increased wireless charging power up to 15W. The upcoming Qi2.2 standard, expected to be released this year, will further boost universal wireless charging power to 25W. With just a single magnetic wireless charger, users will be able to charge various Qi2-compatible devices faster and more efficiently.

With the integration of AI, wireless charging is evolving from a simple power transfer tool into a key component of intelligent energy management systems. As AI technology continues to advance, wireless charging will find various applications in consumer electronics, smart transportation, industrial, and medical sectors, driving smarter and more efficient energy utilization.

Maxic has introduced MT5820, a highly integrated and high-power wireless charging transmitter chip that supports MPP 25W. Using advanced magnetic induction technology, it fully meets the latest WPC Qi2.2 standard and supports BPP, EPP, and MPP (5W/15W/25W). It also features multi-device charging, with a maximum power output of 100W.

MT5820 includes the applications – wireless chargers, magnetic power banks, automotive dock, and multi-device charging stations. It offers fast, efficient, and safe wireless charging for smartphones, wearables, medical devices, smart home products, and industrial equipment.

Features

• Up to 100W output power

• Built-in ARM Cortex-M0 with 64KB MTP, 32KB ROM, and 16KB SRAM

• Supports BPP, EPP, and MPP

• Integrates Buck/Boost Controller with three pairs of n-MOSFET drivers

• Dual-channel Q-factor detection

• Supports demodulation with dynamic threshold adjustment

• Compatible with QC 2.0/3.0, USB PD, SCP, FCP, and UFCS

• Supports high-side and low-side current sense

• Built-in high-speed 12-bit 100KSPS SAR ADC

• Available in QFN48L (6mm × 6mm) package

MT5820 Typical Application Circuit

MT5820 enables multi-device charging, thanks to its highly-integrated design. It features a high-performance ARM Cortex-M0 processor with 16KB SRAM, 32KB ROM, and 64KB MTP memory, providing efficient processing power and sufficient code space to support custom protocols.

Additionally, MT5820 integrates a Buck/Boost Controller and three pairs of N-MOSFET drivers, enabling simultaneous charging of smartphones, smart watches, and earbuds. Its high level of integration simplifies product design, reduces overall size and cost, and enhances development efficiency for manufacturers.

MT5820 is compatible with various wireless charging standards, supporting BPP, EPP, and MPP (5W/15W/25W) power configurations. With phase demodulation technology, it automatically adjusts output power based on the device’s charging needs, ensuring an optimal balance between fast charging and safety.

Its excellent EMI performance enhances charging stability, allowing a single wireless charger to power multiple devices. This provides users with a convenient and flexible charging experience, making it suitable for a wide range of applications.

*The test results mentioned in this article are based on laboratory conditions. Actual product performance may vary depending on application environment and batch differences. Maxic Technology reserves the right of final interpretation.