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The AP43781 is a highly integrated USB Type-C® power delivery controller targeted for monitor or TV power board with USB Type-C ports. It supports USB power delivery specification Rev3.1 SPR (Standard Power Range) with full range of programmable power supply (PPS).
The AP43781 can support PPS APDO (Augmented Power Data Object) with resolution of 20mV/step in voltage and 50mA/step in current. In addition, cable-loss compensation and e-Marker detection are provided.
After the power negotiation is established, AP43781 can support DisplayPort™ by decoding out the CC signal and then deliver the routing control and signaling information to the high-speed switches and the re-driver/re-timer ICs through I2C interface, where the I2C bus can be assigned as master or slave, and GPIO pins can be programmed for different applications.
The AP43781 can offer comprehensive safety protection schemes, including overvoltage protection (OVP), undervoltage protection (UVP), overcurrent protection (OCP), short-circuit protection (SCP) and/or overtemperature protection (OTP).
A one-time programmable ROM is provided for main firmware, and a multi-time programmable ROM is provided for user configuration data.
Compatible with USB PD Rev3.1 SPR
Support Full Range of PPS 3.3V to 21V with Resolution of 20mV/Step in Voltage and 50mA/Step in Current.
Support Type-C Alternative Mode for DisplayPort
Built-in Regulator for CV and CC Control
Support OVP/UVP/OCP/SCP/OTP with Auto Restart
Support Power Saving Mode
Driver for Output Enable nMOS Switch
Support E-Marker Cable Detection
Support I2C Interface with Master and Slave Flexibility
Operating Voltage Range: 3.3V to 24V
OTP (One-Time Programmable) for Main Firmware
MTP (Multi-Time Programmable) for System Configuration