Introduction

In 2023, the Wireless Power Consortium (WPC) introduced the Magnetic Power Profile (MPP) technology, upgrading the Qi standard to Qi2.0, which increased wireless charging power to 15W. The upcoming Qi2.2 standard, expected to be released this year, will further enhance universal wireless charging power to 25W. With a single magnetic wireless charger, users can charge various Qi2-compatible devices, benefiting from faster charging speeds and improved efficiency.

With AI integration, wireless charging is evolving from a mere energy transfer tool to a core component of intelligent energy management systems. As AI technology continues to advance, wireless charging will see broader applications across consumer electronics, smart transportation, industrial healthcare, and more, driving intelligent and efficient energy utilization.

Maxic has introduced the MT5820, a highly integrated high-power wireless charging transmitter chip that supports 25W MPP charging. Using advanced magnetic induction technology, the MT5820 fully complies with the latest WPC Qi2.2 standard and supports BPP, EPP, and MPP (5W/15W/25W) power configurations. It also integrates a multi-device charging function, delivering up to 100W of total transmission power.

Maxic Launches 100W Wireless Charging Chip MT5820 Supporting Qi2.2 and Multi-Device Charging-Chargerlab

Key Features:

  • Maximum output power of 100W
  • Built-in ARM Cortex M0 with 64kB MTP, 32kB ROM, and 16kB SRAM
  • Supports BPP/EPP/MPP
  • Integrated Buck/Boost Controller with three pairs of N-MOSFET drivers
  • Dual-channel Q-value detection
  • Dynamic threshold tracking for demodulation
  • Supports QC 2.0/3.0, USB PD, SCP, FCP, and UFCS
  • High-side/low-side current detection
  • Built-in high-speed 12-bit 100kSPS SAR ADC
  • QFN48L (6mm × 6mm) package

Multi-Device Charging Capability

Leveraging its high level of integration, the MT5820 features a powerful ARM Cortex M0 processor, equipped with 16KB SRAM, 32KB ROM, and 64KB MTP memory, offering strong processing capabilities and ample code space to flexibly support custom protocols.

Additionally, the MT5820 integrates a Buck/Boost Controller and three pairs of N-MOSFET drivers, enabling simultaneous charging of multiple devices such as smartphones, smartwatches, and earbuds. This high level of integration simplifies design and development, reducing overall system space and cost for manufacturers.

Compatibility and Efficiency

The MT5820 is compatible with various wireless charging standards, supporting BPP, EPP, and MPP (5W/15W/25W) power configurations. Its phase demodulation functionality allows automatic power output adjustments based on device charging requirements, achieving an optimal balance between fast charging and safety. Enhanced EMI performance further improves charging stability. With a single wireless charger, users can conveniently charge multiple devices, ensuring a flexible and seamless charging experience across diverse application scenarios.

Broad Applications and Market Impact

The MT5820’s "multi-device charging" capability offers significant advantages in application, cost, and technical performance. By simplifying the charging process and enhancing user experience, it reduces system costs and improves charging efficiency, delivering greater value to both manufacturers and consumers. The MT5820 is poised to find extensive applications in smart homes, industrial control, autonomous driving, and beyond, providing a more convenient and efficient wireless charging solution for users worldwide.