UPD350C-I/Q8X

Controllers Overview

The UPD350C-I/Q8X is a highly integrated USB Type-C Power Delivery 3.0 port controller in a 28-QFN package. It operates at +1.8V to +3.3V with a voltage range of 1.62 V to 3.47 V and supports Full Speed data rates up to 270 kb/s. The device features an I2C interface, Dual Role Port (DRP) support, and standalone UFP mode. It includes integrated analog components such as VCONN FETs and power switches for dead battery support. Operating temperatures range from -40°C to +85°C.

Controllers Feature Summary

• Integrated USB Power Delivery 3.0 MAC with automatic GoodCRC generation and error handling
• Supports Dual Role Port (DRP) operation with Fast Role Swap (FRS) and DRP offload mode
• Includes integrated analog discrete components like VCONN FETs and current/voltage sense circuitry
• Provides standalone Upstream Facing Port (UFP) control without external processor intervention

Controllers Applications

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

Controllers Procurement Notes

Verify the specific suffix 'I' confirms industrial temperature rating (-40°C to +85°C). Confirm the 'Q8X' suffix corresponds to the QFN-28 package type. Check official Microchip documentation for current lifecycle status as this model may be discontinued or subject to limited availability.

Controllers Selection Notes

Select the UPD350C variant specifically for I2C interface compatibility with the host system. Ensure the design requires standalone UFP functionality or companion controller architecture. Verify that the 28-QFN footprint fits the PCB constraints and that the operating voltage aligns with the 1.8V/3.3V supply rails.

Controllers Part Context

This component belongs to the UPD350 family of USB Type-C controllers. The UPD350C variant is distinguished by its I2C communication interface, unlike the UPD350B which uses SPI. It shares the same physical package and core PD MAC capabilities with other family members but offers specific interface and feature combinations defined by its suffix.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.