140W fast charging technology – ChangZhou Sun-Rise Electronic Co.,Ltd.

Forward

In recent years, with the high attention paid to new gallium nitride and silicon carbide technologies, the fast charging industry has developed rapidly. The overall development trend of fast charging products is multifunctional, multi interface, high-power, and small-sized. With the launch of the latest USB PD3.1 fast charging standard by the USB-IF Association and the official commercial use of Apple's MacBook Pro 16 140W PD3.1 fast charging, numerous manufacturers upstream and downstream of the industry chain have been attracted to enter. The chip industry scale around the USB PD3.1 fast charging standard continues to expand, laying a solid foundation for the future outbreak of higher power markets.

Major upgrade of fast charging standards

In May 2021, the USB-IF Association officially released the USB PD3.1 fast charging standard, increasing the maximum charging power to 240W, and adding three fixed output voltage ranges of 28V, 36V, and 48V, as well as three adjustable voltage ranges of 15V-28V, 15V-36V, and 15V-48V (referred to as AVS).

The latest USB PD3.1 fast charging standard is an advanced version of the USB PD3.0 standard. PD3.1 covers the content of PD3.0 and is fully Backward compatibility; At the same time, in terms of standard terminology, USB PD3.0 has gradually been replaced by USB PD3.1 SPR, which refers to the standard power range. When the power of PD fast charging products is within 100W, it can be called USB PD3.1 SPR. When the product power is greater than 100W, it belongs to the USB PD3.1 EPR (Extended Power Range) device.

For power supply products, in order to meet the application requirements of USB PD3.1 EPR, almost all Almost all in the fast charging charger are facing new challenges, especially power supply chips, protocol chips, MOS, capacitors, transformers, connectors, etc.

PD3.1 fast charging protocol chip

The protocol chip is crucial for USB PD3.1 fast charging chargers. It has been a long time since the release of the USB PD3.1 fast charging standard and the launch of Apple 140W gallium nitride fast charging. Currently, according to incomplete statistics from the charging head network, manufacturers such as Xinhai, Huinengtai, Infineon, Yingjixin, Zhirong, Tiandeyu, Tongjia, Shuixin, Nanxin, Guangxin Micro, and Weiquan have launched USB PD3.1 EPR protocol chips.

summary

USB PD3.1, as the latest high-power charger standard, brings a brand new fast charging experience, bringing more universal and compatible solutions for high-power devices such as laptops. A single charger can be used to meet the power supply needs of various devices without the need to produce dedicated chargers, reducing carbon emissions and packaging waste generation.

After the release of USB PD3.1 fast charging technology, multiple manufacturers represented by Infineon, Yingjixin, Zhirong, Maoruixin, Huinengtai, Tiandeyu, Yichong, and Weifeng Electronics have sooner or later laid out USB PD3.1 fast charging chips, each with its own unique features, covering different applications such as LLC synchronous rectification, step-down, protocol, and E-Marker, becoming the first enterprise in the industry to enter the USB PD3.1 fast charging market.

I believe that as more and more chip manufacturers enter the USB PD3.1 fast charging market, the entire fast charging ecosystem will gradually mature.

Sun-Rise Electronic / Calukii US Store

July 30th, 2023