IFXCYPD4126-40LQXI
Overview
The CYPD4126-40LQXI is a member of the Infineon CCG4 family, a highly integrated dual-port USB Type-C and Power Delivery (PD) controller based on an Arm Cortex-M0 core. It provides a complete USB-C solution including integrated digital blocks and system-level ESD protection on Configuration Channel (CC) pins. Operating from 2.7V to 5.5V, this controller manages the complexities of PD negotiation and port management in a compact 40-UFQFN package.
Why Choose This Part
This controller features 128KB of Flash and 8KB of RAM, allowing for field-upgradable firmware to meet evolving USB PD standards. It reduces BOM complexity by integrating multiple interfaces including I2C, SPI, and UART alongside dedicated USB-PD hardware. The low-power Deep Sleep mode, consuming only 80 uA, makes it suitable for power-sensitive mobile applications.
Applications
Key Specifications
Getting Started
Engineers can develop for the CYPD4126 using the PSoC Creator IDE or ModusToolbox, which provide comprehensive middleware for USB Power Delivery. Development can be accelerated using Infineon's CCG4 evaluation kits (such as the CY4541), and firmware can be programmed via the integrated SWD interface.



