AP43776 USB Type-C™ Protocol Decoder Diodes Inc. AP43776 USB Type-C™ Protocol Decoder is a highly integrated, dual-channel, USB Type-C, PD3.1 / PPS / QC5 protocol decoder. It passes certification of USB Type-C power delivery specification Rev 3.1 V1.1 with PPS and Quick Charge™ QC5 protocol. The device can support the full range of PPS APDO (augmented power data object) from 3.3V to 21V with 20mV/step voltage resolution and up to 6A current with 50mA/step resolution for power management. To enable output current beyond 3A, the AP43776 supports e-Marker cable detection with a built-in VCONN switch with 30mA driving capability and overcurrent protection (OCP). Cable loss compensations are also embedded.