Disassembly report: jinhotai Mini 25W PD fast charging charger

2021-05-07

Recently, the charging head network got a mini 25W PD fast charging charger from jinhotai brand, which is equipped with European standard long pin and single usb-c interface, supports up to 9v2.77a fast charging, and also supports PPS fast charging, with good overall compatibility. Let's disassemble this charger in detail to see how the product is doing.

Jinhotai's 25W PD fast charging charger is made of PC shell. The body is "thick" and the input end is a typical European standard long pin. The pin is diagonally inclined, which can make the body upright and avoid fighting. The charger supports apple 2.4a, QC, AFC, FCP, SCP, pe2.0, pd3.0 and PPS fast charging protocols. In addition to two fixed voltage ranges of 5v3a and 9v2.78a, it also supports two PPS voltage ranges of 3.3-5.9v3a and 3.3-11v2.75a. The overall compatibility is very good, which can meet the fast charging requirements of major brands of mobile phones.

Through the disassembly of the charging head network, it is learned that the charger adopts two PCB boards vertically welded and L-shaped structure design. Silicon power sp6649hf + sp6516f high integrated fast charging scheme is adopted to help the charger realize miniaturization. In addition, Zhirong sw2303 is used to control the output voltage. This chip is the first non MCU architecture qc5 authentication protocol chip in the industry. It has strong performance and the charger supports such a complete fast charging protocol.