CIRCUIT FOR PROTECTING USB INTERFACE OF TERMINAL CHIP

摘要

A circuit for protecting a USB interface of a terminal chip comprises a first resistor (R0) and a first diode (D0), the first resistor (R0) and the first diode (D0) are connected in parallel and arranged to be located between a USB ID pin of the terminal chip and a power supply (VDD). The circuit further comprises a protective element; the protective element is arranged to be located between the USB ID pin of the terminal chip and the USB ID pin of a terminal USB socket, and the protective element is a second resistor (R1) or a second diode (D1).