STMicroelectronics EVLVIPGAN50PD

Overview

EVLVIPGAN50PD from STMicroelectronics is a 45 W USB Type-C® Power Delivery 3.0 evaluation board based on the VIPERGAN50 650 V GaN HEMT offline converter, STUSB4761 USB PD controller, and SRK1001 adaptive synchronous rectifier. It delivers five programmable output voltages (5/9/12/15/20 V) with up to 3 A at ≤15 V and 2.25 A at 20 V, meets CoC Tier 2 and DoE Level 6 efficiency standards, and implements full-hardware USB PD negotiation for smartphones, tablets, and portable computing adapters.

For engineers reviewing the EVLVIPGAN50PD datasheet, EVLVIPGAN50PD pinout, EVLVIPGAN50PD application, or EVLVIPGAN50PD equivalent, this reference design provides verified AC-DC conversion architecture, USB PD 3.0 compliance, quasi-resonant flyback control, adaptive secondary-side regulation, and integrated protection against OVP/UVP/OPP/SCP - critical for fast-turnaround, BOM-optimized USB-C adapter development.

Technical Context

The EVLVIPGAN50PD implements an isolated quasi-resonant flyback topology using VIPERGAN50 as the primary-side 650 V GaN-based controller with ZCD sensing and internal HV startup. Its operation supports universal AC input (90–264 VAC, 47–63 Hz) and achieves >92% peak efficiency across all five USB-PD output profiles.

On the secondary side, STUSB4761 executes full-hardware USB PD 3.0 stack including CC logic, VBUS control, and CC/CV regulation, while SRK1001 drives synchronous rectification with adaptive TON/TOFF timing. Protection includes output overvoltage, undervoltage, over-power, and short-circuit detection with automatic recovery.

Key Specifications

Availability

EVLVIPGAN50PD is available at Aetrix Electronics and suitable for USB-C PD adapter development, smartphone/tablet fast-charging reference design validation, and industrial portable device power supply qualification requiring stable component supply and documented ST reference implementation.

Supply support for EVLVIPGAN50PD includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for automotive, industrial, and consumer applications.

EVLVIPGAN50PD belongs to ST's USB Power Delivery Reference Design portfolio, developed to accelerate time-to-market for GaN-based, high-efficiency AC-DC adapters meeting latest USB PD 3.0 and energy regulation mandates.

FAQ

What is the primary function of the EVLVIPGAN50PD evaluation board?

The EVLVIPGAN50PD is a complete, tested 45 W USB Type-C® Power Delivery 3.0 reference design that demonstrates ST's VIPERGAN50 GaN controller, STUSB4761 PD interface, and SRK1001 synchronous rectifier in an isolated quasi-resonant flyback topology. It serves as a hardware foundation for developing certified, high-efficiency AC-DC adapters-not a standalone production part.

Does EVLVIPGAN50PD support variable output voltage without firmware changes?

Yes. Output voltage selection is fully hardware-managed by the STUSB4761's embedded USB PD 3.0 stack, which negotiates voltage profiles over the CC line using standard PD messages. No host MCU or firmware update is required-the board responds to PD requests from any compliant source or sink device.

Can EVLVIPGAN50PD be used for continuous 45 W output at 20 V?

No. At 20 V, maximum rated output current is 2.25 A (45 W), but sustained operation at full load requires adequate heatsinking and airflow per the DB4675 thermal characterization. The board is validated for 45 W total output across all profiles, not simultaneously-each profile operates within its specified current limit and thermal envelope.

Which protection features are implemented and how are they triggered?

EVLVIPGAN50PD implements output overvoltage (OVP), undervoltage (UVP), over-power (OPP), and short-circuit (SCP) protection. OVP/UVP are monitored by STUSB4761 via FB and Vsense pins; OPP is derived from Isense and VBus-EN feedback; SCP triggers immediate shutdown via fault pin assertion and automatic restart after timeout-verified per IEC/UL safety guidelines.