AP33771C中文资料Easy-To-Use USB PD3.1 EPR Sink Controller数据手册Diodes规格书

描述 Description

The AP33771C is a highly integrated USB Type-C ® PD 3.1 sink controller to support Extended Power Range (EPR)/Adjustable Voltage Supply (AVS) up to 28V and Standard Power Range (SPR)/ Programmable Power Supply (PPS) up to 21V. The device is targeted for DC power request and control for Type-C Connector-equipped Devices (TCDs) through simple external resistor setting.


For a simple TCD without a system MCU, the AP33771C initiates desired power request by interpreting matching resistance values of the VSEL pin (voltage) and ISEL pin (current) after Power On Reset (POR), Table 2.


Based on the high-voltage process, the AP33771C offers short-protection between CC1/CC2 pins to adjacent high-voltage pin up to 34V. Smart built-in firmware of the AP33771C offers comprehensive safety protection schemes, including overvoltage protection (OVP), undervoltage protection (UVP), overcurrent protection (OCP), and moisture detection between DP and DN. An LED indicator is used to show the PD power negotiation status. The automatic cable voltage drop compensation is implemented to cover practical usage situations. Meanwhile, the AP33771C can indicate the insertion orientation of the Type-C attachment.