CYAC1126-40LQXIT

Application Specific Microcontrollers Overview

The CYAC1126-40LQXIT is a single-port USB Type-C controller from Infineon's ACG1F family, designed for notebooks and desktops. It integrates an Arm Cortex-M0 processor with 16 KB flash, 4 KB SRAM, and 32 KB SROM. The device supports USB Type-C v1.3 without Power Delivery, featuring an integrated VBUS load switch rated at 5 V/3A with a typical RDSon of 45 mΩ. Key protections include OVP, OCP, SCP, reverse current protection (RCP), and thermal shutdown. It includes two VCONN FETs for EMCA cables and BC 1.2 charger detection.

Application Specific Microcontrollers Feature Summary

• Integrated 16-MHz Arm Cortex-M0 MCU with 16 KB Flash, 4 KB SRAM, and 32 KB SROM
• Single-port USB Type-C controller supporting Type-C v1.3 specifications
• Integrated VBUS load switch (5 V/3A) with 45 mΩ typical RDSon
• Comprehensive protection: OVP, OCP, SCP, Reverse Current Protection (RCP), and thermal shutdown

Application Specific Microcontrollers Applications

• Notebooks and desktops requiring USB Type-C control
• Devices converting legacy Type-A data ports to Type-C
• Applications powering active EMCA cables via integrated VCONN FETs

Application Specific Microcontrollers Procurement Notes

Verify the component against the official Infineon datasheet (Rev. *G) to confirm pinout compatibility and electrical ratings. Ensure the design accounts for the specific I2C address configuration options available via the SWD_CLK pin. Confirm that the application does not require Power Delivery functionality, as this controller lacks PD support.

Application Specific Microcontrollers Selection Notes

Select this component for designs needing a Type-C port controller without Power Delivery capabilities. It is suitable for systems requiring an integrated provider path load switch and BC 1.2 charging emulation. Verify that the host system can interface via I2C for firmware updates and control, and ensure the voltage range of 2.7 V to 5.5 V matches the system power supply.

Application Specific Microcontrollers Part Context

This part belongs to the ACG1F (Type-A to Type-C Generation - 1 FET) family. It utilizes Infineon's proprietary M0S8 technology. The device is packaged in a 40-pin QFN with a 0.5 mm pitch, supporting industrial temperature ranges from –40°C to +85°C.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Infineon directly for cross-reference recommendations or alternative solutions within the EZ-PD portfolio.