EVLVIPGAN100PD 100W USB Power Delivery reference design based on VIPERGAN100

The EVLVIPGAN100PD is a 100 W USB Type-C® power delivery 3.0 adapter reference design. It is an isolated power supply with a standalone USB PD controller. The evaluation board implements, at the primary side, a quasi-resonant flyback converter based on STMicroelectronics' VIPerGaN® high-voltage converter VIPERGAN100 with optocoupler feedback for voltage regulation. This controller combines a high performance low-voltage PWM controller chip with a 650 V startup cell in the same package. The advanced power management with the low quiescent helps to achieve low standby consumptions.

To reduce the input mains current distortion, thus providing IDE range mains operation with an extremely low THD, a PFC based on the L6564 is used.

At the secondary side, to increase the system efficiency, the rectification is based on the SRK1001 adaptive synchronous rectification controller.

Always on the secondary side the CC/CV regulation loop to drive the power regulation stage and the USB Type-C® PD interface is based on the STUSB4761 controller. This controller offers the benefits of a full hardware USB PD stack allowing robust, deterministic, and safe negotiation in line with USB PD standards.

The evaluation board implements a robust adapter protected for output overvoltage, output undervoltage, output overpower, and output short-circuit. This reference design helps designers to develop adapters with a short bill of materials in order to obtain a cost-effective and fast design.