Nowadays，smartphones tend to be slim and multi-functional, and the compact chip has also become a research hotspot. For wireless charging chips, high-performance and high-reliability design in a smaller space can effectively reduce the size of the power supply, realize the miniaturization of high-power power supply, provide a high-power solution for wireless charging of smartphones and mobile devices, and achieve the slim and multi-functional design while ensuring users’ experience.

Based on rich experience in power management, Maxic has launched a variety of highly integrated wireless charging solutions to meet the requirements of terminal products. Maxic recently launched its newest wireless charging RTx MT5708, which adopts 2.11mm*3.36mm 40-WLCSP package and supports 36W power delivery and 10W reverse charging.

MT5708, a high integration and high-power RTx which is compliant with Qi 2.0, adopts electromagnetic coupling technology, supporting BPP, EPP and MPP. Based on the new development process, it supports up to 36W wireless charging in specific proprietary protocols and has 2.11mm*3.36mm package size, half of the competitive products, enabling compact and slim design of electronics like smartphones.

MT5708 adopts full-bridge and full synchronous rectifier bridge technology, features up to 97% AC to DC conversion efficiency, and the 32-bit M0 processor and 32KB MTP, rich GPIO and I²C interface making flexible design possible. 

Besides, it features 10W power delivery in Tx mode with less than 2% Q-detection accuracy, and applicable in smartphones, power bank, pad, and other electronics.

Features

• Power delivery: up to 36W(12V/3A) 

• Power delivery in Tx mode: up to 10W 

• Embedded with ARM Cortex M0 processor with 6KB SRAM and 32KB MTP 

• AC to DC conversion efficiency: up to 97%

• Current-voltage accuracy:<1%

• Supports applications with low inductance coil

• Compliant with Qi 2.0 and supports 85KHz～2MHz operating frequency

• GPIO supports 1.8V and 1.2V in/out simultaneously  

• Dual-channel ASK demodulation for reverse charging

• Q-value detection accuracy in Tx mode :<2%

• Designed with various protections: OVP, OCP, OTP, SCP, etc

Maxic Full Power Range Wireless Charging Solutions

In wireless charging area, Maxic provides full power range and automotive-grade solutions, which are compliant with Qi 1.3 or Qi 2.0. The products are applicable in various terminal products such as TWS earphones, watches, electric toothbrush, smartphones, PAD, power banks, wireless chargers, automotive electronics and other terminal products.