Protocol IC control circuit and fast charger

The invention relates to the technical field of chargers, and discloses a protocol IC control circuit and a quick charger, the protocol IC control circuit comprises an upper shell, a PCBA is arranged in the upper shell, a PC cover and an elastic sheet are arranged on the PCBA, a silica gel sleeve is arranged between the inner wall of the upper shell and the PCBA, the top of the upper shell is fixedly connected with a lower shell, and a support is inserted into the bottom of the lower shell. The lower shell adopts a folding pin and is of an elastic sheet contact type, and one end of the bracket, which is positioned in the upper shell, is riveted and fixed with an elastic sheet. According to the protocol IC control circuit and the fast-charging charger, an XPD738 protocol chip is adopted, one-to-two is used for 1C1A double-port control, the internal space of the charger can be saved, small-size fast charging is achieved, and the fast-charging charger is very convenient to carry when a user goes out; an upper bo