MCP22350T-2I/Q8X

Controllers Overview

The MCP22350T-2I/Q8X is a highly integrated USB Type-C Power Delivery 3.1 port controller designed for companion use with Microchip MCUs or SoCs. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating current of 15 mA. The device supports an industrial temperature range from -40°C to +85°C and utilizes a 28-pin VQFN package measuring 4.0mm x 4.0mm. Communication with the host processor is facilitated via an SPI interface supporting clock frequencies up to 25 MHz.

Controllers Feature Summary

• Integrates analog discrete components including VCONN FETs with Rp/Rd switching and dead battery Rd termination to reduce bill of materials.
• Features an integrated 3.3V power switch that automatically selects between VBUS and main 3.3V supplies to enable dead battery support.
• Includes a compliant USB Power Delivery 3.1 MAC handling packet framing, CRC checking, and automatic GoodCRC message generation.
• Provides USB Type-C cable detect logic for auto orientation detection, VCONN supply control, and configurable DFP/UFP modes.

Controllers Applications

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

Controllers Procurement Notes

Verify the specific suffix 'T-2I/Q8X' against the manufacturer's official documentation to confirm it denotes the tape-and-reel packaging variant of the MCP22350-2 model. Ensure the ordering code matches the required industrial temperature grade and QFN package dimensions. Cross-reference the datasheet revision date to confirm compatibility with current design specifications before finalizing procurement orders.

Controllers Selection Notes

Select the MCP22350-2 variant specifically when hardware-based dead battery support is required for system wakeup without external processor intervention. Confirm that the host MCU can manage the SPI interface at speeds up to 25 MHz. Verify that the application design accommodates the 28-QFN footprint and integrates the necessary external capacitors for the 1.8V regulator and power switch as detailed in the power connection diagrams.

Controllers Part Context

This component belongs to the MCP22350 family of USB Type-C PD controllers. The MCP22350-2 differs from the MCP22350-1 by including integrated hardware support for dead battery scenarios. Both variants share the same small form factor QFN package and SPI interface capabilities, serving as companion controllers for Microchip processors in portable and industrial electronics.

Controllers Replacement Considerations

The MCP22350-1 is a compatible alternative if dead battery support is not required. No other direct substitutes are confirmed in public documentation.

Controllers FAQ

What is the maximum SPI clock frequency supported by the MCP22350?

The device supports a maximum SPI clock frequency of 25 MHz.

How does the MCP22350 handle dead battery conditions?

The MCP22350-2 variant includes an integrated 3.3V power switch that automatically selects between VBUS and main 3.3V supplies, enabling connection detection and system wakeup without external processor intervention.

Which USB Power Delivery specification does this controller comply with?

The MCP22350 complies with the USB Power Delivery Specification Revision 3.1.