AP43671 USB Type-C™ Power Delivery (PD) Controller Diodes Incorporated AP43671 USB Type-C™ Power Delivery (PD) Controller is highly integrated and intelligent with an embedded Synchronous Rectification (SR) controller. This USB controller supports Programmable Power Supply (PPS) and Qualcomm QC4/QC4+ protocols. The AP43671 controller can accommodate popular quick charging protocols for firmware stored in One-Time-Programmable (OTP) memory by leveraging its embedded MCU and supporting circuitry. This USB controller enables optimal system BOM and performance implementation of quick chargers. The AP43671 controller features MCU-based implementation for protocol decoding, application firmware, parameter fine-tuning, and calibration. This USB controller operates at -40°C to +150°C operating temperature range, 3V to 21V supply voltage range, and 3.3mA operating supply current. The AP43671 controller is ideally used in wall and travel chargers for AC/DC adaptors (Type-C equipped notebook PCs).