CYPD3125-40LQXI

Application Specific Microcontrollers Overview

The CYPD3125-40LQXI is a USB Type-C port controller from the EZ-PD CCG3 family, manufactured by Infineon Technologies. It integrates an ARM Cortex-M0 core and supports USB Power Delivery 3.0 standards. The device operates within a supply voltage range of 2.7 V to 21.5 V and features a Dual Role Port (DRP) interface. Designed for surface-mount installation in a QFN-40 package, it functions at full speed data rates up to 1 Mb/s. The component includes integrated I2C, SPI, and UART interfaces for host communication and is rated for industrial operating temperatures between -40°C and +85°C.

Application Specific Microcontrollers Feature Summary

• Integrates an ARM Cortex-M0 processor with embedded firmware capabilities
• Supports USB Type-C and USB Power Delivery 3.0 specifications
• Features a single Dual Role Port (DRP) configuration
• Includes serial communication interfaces: I2C, SPI, and UART

Application Specific Microcontrollers Applications

• USB-C adapters and chargers
• Home entertainment devices
• Mobile device accessories

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm packaging details such as reel or cut tape options. Confirm that the QFN-40 package variant matches the required footprint for the target PCB design. Ensure compliance with RoHS directives and check humidity sensitivity classification prior to storage and reflow soldering processes.

Application Specific Microcontrollers Selection Notes

Select this component when a single-port DRP solution compliant with USB PD 3.0 is required. The wide input voltage range of 2.7 V to 21.5 V accommodates various power delivery profiles. Compare against the CYPD3122-40LQXI if a Downstream Facing Port (DFP) configuration is needed instead of DRP functionality. Ensure the application requires the specific pinout and memory resources provided by the CCG3 architecture.

Application Specific Microcontrollers Part Context

This part belongs to the EZ-PD CCG3 series of USB Type-C controllers. It is distinct from the CYPD4126 series, which typically operates at lower voltages (up to 5.5 V). The CYPD3125-40LQXI is often utilized in evaluation kits like the CY4531 for development purposes. It serves as a dedicated controller for managing power negotiation and connection status in USB-C ecosystems.

Application Specific Microcontrollers Replacement Considerations

The CYPD3122-40LQXI is a related model within the same CCG3 family but offers a DFP port type rather than DRP. Verify pin compatibility and firmware requirements before substituting. No other direct cross-model replacements are confirmed in the provided public data.