MCP22350-1I/Q8X

Controllers Overview

The MCP22350-1I/Q8X is a highly integrated, small form factor USB Type-C Power Delivery 3.1 port controller designed to adhere to the USB Type-C Cable and Connector Specification and USB PD 3.1 Specification. It provides cable plug orientation detection for a USB Type-C receptacle and implements baseband communication with partner devices via an integrated USB PD 3.1 MAC. The device functions as a companion controller to an external Microchip MCU or SoC using an SPI interface. It integrates analog discrete components including VCONN FETs with Rp/Rd switching, power switch circuitry, and current/voltage sense circuits for overvoltage and overcurrent detection. This component lacks hardware dead battery support.

Controllers Feature Summary

• Companion PD Controller for Microchip MCU or SoC
• USB Power Delivery 3.1 Compliant MAC
• Integrated Analog Discrete Components Reduce Bill of Materials and Design Footprint
• SPI Interface for CPU/SoC Communication

Controllers Applications

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

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Confirm that the selected variant matches the required system features, particularly regarding the absence of hardware dead battery support in this specific model compared to other family members. Ensure compatibility with the host MCU's SPI interface specifications before finalizing procurement.

Controllers Selection Notes

Select the MCP22350-1I/Q8X when hardware dead battery support is not required by the application design. This variant relies on the external MCU for power management logic during low-voltage conditions. Ensure the design includes appropriate external components for the integrated power switch and voltage regulators as specified in the datasheet. Verify that the host processor can handle the SPI communication overhead for PD protocol management.

Controllers Part Context

The MCP22350 series consists of two main versions: the MCP22350-1 and MCP22350-2. The primary distinction lies in hardware dead battery support; the MCP22350-2 includes an integrated power switch for automatic selection between VBUS and main 3.3V supplies, whereas the MCP22350-1 does not. Both share the same core PD 3.1 MAC and USB Type-C connector support capabilities.

Controllers Replacement Considerations

The MCP22350-2I/Q8X is a direct functional substitute if hardware dead battery support is needed. Other Microchip controllers like the MCP22301 offer integrated MCU capabilities but differ in architecture.