UPD350DT-I/Q8X

Controllers Overview

The UPD350DT-I/Q8X is a highly integrated USB Type-C Power Delivery 3.0 port controller in a 28-QFN package. It supports I2C and SPI interfaces for CPU communication, enabling companion mode with Microchip hubs or standalone UFP/DFP operation. The device integrates analog components including VCONN FETs, Rp/Rd switching, and an internal power switch for dead battery support at +1.8V-3.3V. It features Dual Role Port (DRP) capability with Fast Role Swap (FRS) and DRP offload. Operating temperatures range from -40°C to +85°C.

Controllers Feature Summary

• Integrated USB Power Delivery 3.0 MAC with automatic GoodCRC and retry generation
• Supports USB Type-C Alternate Modes including DisplayPort
• Dual Role Port (DRP) and Fast Role Swap (FRS) functionality
• Integrated power switch for dead battery support and VBUS/main supply selection

Controllers Applications

• Notebook Computers
• All-in-One/Desktop PCs
• Smartphones
• Tablets
• Docking Stations

Controllers Procurement Notes

Verify the specific suffix 'DT' against official Microchip documentation, as standard family listings typically utilize suffixes such as 'A', 'B', 'C', or 'D' to denote interface variations. Confirm current production status and availability through authorized distributors, as end-of-life notifications may apply to specific revisions within this component family.

Controllers Selection Notes

Select the UPD350 variant based on the required host interface; choose versions with I2C support if communicating with legacy embedded controllers, or SPI versions for higher speed requirements. Ensure the selected model supports the necessary standalone or companion modes for the target application design.

Controllers Part Context

The UPD350 series serves as a companion controller for Microchip USB hubs and SoCs, reducing bill of materials by integrating discrete analog components. It simplifies USB Type-C implementation by handling baseband communication, cable detection, and power negotiation protocols autonomously.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing PCB footprints and firmware drivers when considering alternative PD controllers.