Disassembly report: vivo 33W flashcharge 2.0 fast charging charger

On October 24, 2019, vivo officially released iqoo Neo 855. In addition to this year's flagship chip snapdragon 855, this mobile phone also brings users a faster charging experience. Iqoo Neo 855 supports 33W fast charging and is equipped with a flash charge 2.0 fast charging charger with 33W output power as standard. Let's share the detailed disassembly of this charger.


At the same time, the charging head network has successively disassembled vivo 44w super flash charge charger, vivo x9plus charger, vivo xplay5 power adapter and other products. You can click the link to learn more about the disassembly details.

1、 Appearance of vivo 33W flashcharge 2.0 fast charging charger

Vivo 33W flashcharge 2.0 charger has a flat appearance. The shell is made of white PC flame retardant material, with fixed pins and usb-a output interface. There is no parameter information on the front and side of the charger, so it looks very simple.

Product parameters are printed on the back of charger, vivo flashcharge2.0 charger; model: v3330l0a0-cn, output: 100-240V ~ 50 / 60Hz, 0.85a, output: 5V / 2A or 9V / 2A or 11V / 3a. The charger manufacturer is Huizhou Jinhu Industrial Co., Ltd., which has passed CCC certification. National standard fixed AC pin. Usb-a output interface adopts white rubber core, and four pins can be seen inside. Compared with apple 30W PD fast charging charger, vivo charger is more slender. The net weight of the charger is about 72g. Using chargerlab power-z kt001 to detect the output protocol of usb-a interface, it shows that it supports USB DCP protocol and qc2.0 fast charging protocol. Under qc2.0 fast charging protocol, the maximum output voltage of charger is 9V.

2、 Disassembly of vivo 33W flashcharge 2.0 fast charging charger

The shell of the charger is welded by ultrasonic wave, which is very firm. It can be opened only after the side cover plate is deformed. After removing the cover plate, you can see that the internal PCB board is fixed in the guide groove inside the shell, and the output usb-a interface is designed with a plastic dust cover. In addition, two output anti-interference Y capacitors and output filter solid-state capacitors can be seen. The inner side of the shell is connected with PCBA module by metal shrapnel. Take out the PCBA module, the front of the PCB is yellow, and the single-sided circuit board is mainly composed of plug-in components, including transformer, capacitor, delay fuse, safety x capacitor, common mode inductor, etc., and use glue injection reinforcement treatment between the components. The input end is equipped with delay fuse, safety regulation x capacitor, common mode inductor, NTC surge suppression resistance, input filter electrolytic capacitor, etc. A lot of silica gel is used to fix and conduct heat around the transformer and electrolytic capacitor.




Summary of dismantling charging head net

The latest flash charge 2.0 charger introduced by vivo is quite different from the original charger in style and has a longer body. The fuselage shell is made of white flame retardant PC material, matte treatment, scratch resistant and fingerprint free. In terms of performance, in addition to supporting the latest flash charge 2.0 of vivo, it also supports qc2.0 fast charging protocol, which is compatible with the 18W fast charging of the old model of vivo.

According to the disassembly of charging head network, the charger adopts a complete set of Li'an fast charging solution, and uses the primary switch tube of Swaziland microelectronics and the secondary synchronous rectifier MOS tube of Weizhao semiconductor. The main components are from well-known semiconductor enterprises in the industry. At the same time, the layout of internal components is orderly and compact, and a large number of glue injection treatment is used around the transformer to strengthen heat dissipation, so as to avoid local overheating in high power output.