Shulou(Shulou.com)11/24 Report--

CTOnews.com February 7 news, May 2021, USB-IF Association launched the latest USB PD3.1 fast charging standard specification, the maximum fast charging power from the traditional 100W (20V/ 5A) to 240W (48V5A), so that the USB PD fast charging standard application market from mobile phones, laptops and other expansion to more devices.

Based on this standard development, analog and embedded chip design company Nanxin Technology recently announced the launch of 140W single C port, dual C port and 2C1A 2C2A and other fast-charging power solutions.

140W single C port: This solution adopts a full set of Nanxin star products, including PFC controller, high frequency QR flyback controller, secondary synchronous rectifier and protocol chip, etc., and the overall design is simplified.

▲ Demo display, picture source Nanxin Technology CTOnews.com summary scheme highlights are as follows:

Nanxin Complete Solution

The peripheral circuit of the scheme is simplified and efficient

Supports PD3.1 28V / 5A and PPS 3.3V-21V

Support multiple fast charging protocols

Support CC / CV mode

PFC has Class 2 OVP protection

QR Flyback Controller Direct Drive GaN

Synchronous rectifier controllers have very short turn-on and turn-off delays

140W multi-port: This scheme uses two SC9712 protocol chips, which can realize power distribution among multi-ports without additional MCU. The scheme can also be changed into 2C, 1C1A, 2C1A, 2C2A and other schemes according to the actual needs of users.

▲ Demo display, picture source Nanxin Technology CTOnews.com summary scheme highlights are as follows:

Nanxin Complete Solution

The peripheral circuit of the scheme is simplified and efficient

Supports PD3.1 28V / 5A and PPS 3.3V-21V

Support multiple fast charging protocols

Support CC / CV mode

PFC has Class 2 OVP protection

QR Flyback Controller Direct Drive GaN

Synchronous rectifier controllers have very short turn-on and turn-off delays

Single protocol chip supports C+A or A+A applications, and supports dual port independent current limiting

The protocol chip supports PD, UFCS, AFC, FCP, SCP and other fast charging protocols

The protocol chip has its own CPU, and multiple chips cascade can automatically distribute power to multiple ports.

1 firmware can support 2C, 1C1A shared, 1C1A non-shared, 2C1A shared, 2C1A non-shared, 2C2A and other applications

Nanxin Technology said that, as the pioneer of localization of gallium nitride fast charging controller, it took the lead in realizing the independent control of gallium nitride control chip. Up to now, it has successfully mass-produced a variety of integrated GaN direct-drive controllers. With mature high-integration GaN solutions, it has reached in-depth cooperation with multiple brands, which has been widely recognized by the industry. Recently launched 140W single C port, double C port and 2C1A 2C2A and other fast charging power solutions, a full set of Nanxin star products, the overall design of the periphery is simplified, bringing customers a wealth of choices.

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