Disassembly report: Nokia 65W 2c1a gallium nitride fast charging charger

2021-12-15

With the continuous development and growth of the fast charging market, even big manufacturers such as Nokia also participated in the share. Previously, the charging head network disassembled a Nokia 20W PD fast charging charger. Recently, we got a 65W gallium nitride fast charging charger p6308 from Nokia.

This is a mainstream 65W gallium nitride fast charging product in the market. It is equipped with three USB interfaces 2c1a, supports 65W PD fast charging, Huawei 22.5w SCP fast charging, etc., and focuses on portable and multi device simultaneous charging selling points. The following charging head network will disassemble this charger in detail to see how the actual materials and workmanship are.

Nokia's 65W gallium nitride fast charging adopts the mainstream cylindrical body, and is equipped with folding pins and 2c1a interface, but the volume control is good, only 73.5cm ³， Power density up to 0.88w/cm ³， Compared with many three port gallium nitride fast charging on the market, the performance is quite good.

Through the disassembly of the charging head network, it is found that the secondary side of the charger adopts the design of two DC-DC secondary step-down output, and both adopt the Zhirong sw3516h scheme. Thanks to the use of this chip, the 2c1a interface is compatible with QC, AFC, FCP, SCP and Pe2 0、PD3. 0. PPS full mainstream fast charging protocol can support fast charging of two devices such as laptop and mobile phone at the same time, so as to reduce the user's take out cost.

The charger adopts ansenmey ncp1342 + MPs mp6908a mainstream high-frequency QR power supply scheme, with innoseco inn650d02 gallium nitride power chip, zhenmaojia synchronous rectifier, Kongsheng electrolytic capacitor and Yongming NPX series solid-state capacitor for input and output filtering. The module components are filled with thermal conductive adhesive, and covered with brass heat sink to help heat dissipation. The mainstream materials are used and the workmanship is reliable.