UPD301CT/KYX

Controllers Overview

The UPD301CT/KYX is a standalone USB Type-C Power Delivery 3.0 controller from Microchip Technology, designed for sink-only, dual-role power, and dual-role data applications. It integrates a 32-bit ARM Cortex-M0+ CPU with 64KB Flash and 8KB RAM, alongside a USB PD MAC compliant with the USB PD 3.0 specification. The device supports standard power delivery profiles up to 100W and includes integrated analog discrete components such as VCONN FETs with Rp/Rd switching and programmable current/voltage sense circuits. It operates in a 40-VQFN package (6.0mm x 6.0mm) and supports commercial (0°C to +70°C) and industrial/automotive (-40°C to +85°C) temperature ranges.

Controllers Feature Summary

• Integrates a 32-bit ARM Cortex-M0+ processor with embedded flash and RAM for customizable firmware execution.
• Includes a dedicated USB Power Delivery 3.0 MAC handling packet framing, CRC checking, and encoding/decoding.
• Features integrated analog components including VCONN FETs and over-current/voltage detection circuitry.
• Supports dead battery Rd termination for reliable detection in unpowered sink-only applications.

Controllers Applications

• Bus-powered or battery-powered sink-only devices
• Dual-role power and data mobile devices
• Multi-port charging docks and adapters

Controllers Procurement Notes

Verify the specific suffix 'KYX' against official ordering information to confirm packaging details and regional availability. Ensure the selected variant matches the required temperature grade and dead battery support configuration for your design.

Controllers Selection Notes

Select the UPD301C variant for sink-only or dual-role applications requiring dead battery support. Use the UPD301B for source-only designs. Confirm SPI interface compatibility if expanding to multiple ports using external UPD350 controllers.

Controllers Part Context

The UPD301B/C family provides a complete standalone solution for USB Type-C PD implementations. By combining the SAMD20 MCU and UPD350 PHY/MAC into a single package, it reduces bill of materials and design footprint compared to discrete solutions.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing reference designs before considering alternative components.

Controllers FAQ

Does the UPD301CT/KYX support Dual Role Power operation?

Yes, the UPD301C variant supports Dual Role Power (DRP) operation, allowing the port to switch between source and sink roles dynamically.

What is the maximum power delivery supported by this controller?

The controller supports standard power delivery profiles up to 100W without software modification.

How does the device handle dead battery scenarios?

The UPD301C variant includes hardware-enabled dead battery Rd termination, allowing the device to be detected and powered from an attached DFP port even when its internal battery is depleted.