PD

The USB Power Delivery (PD) protocol has driven unified charging from smartphones to high-performance laptops, but its complex voltage negotiation (5 V–48 V) and bidirectional power paths place extreme demands on interface safety design. During hot-plugging of USB-C connectors, arcing-induced surge transients can occur between high-voltage VBUS and data/CC/SBU pins, risking component stress or damage, communication errors and manufacturer-specific safety issues. Additionally, ESD events and short circuit conditions can jeopardize sensitive PD control logic and data integrity.

YINT Electronics’ USB PD protection solution provides coordinated overvoltage and electrostatic discharge suppression using ultra-fast transient voltage suppressors (TVS) and high-energy surge absorbers optimized for USB-C interface characteristics. With extremely low capacitance and high withstand voltage performance, these protection elements maintain accurate PD protocol negotiation and data exchange while isolating abnormal voltage surges and safeguarding the bidirectional system between charging and powered devices.