CYPD3176-24LQXQT

Controllers Overview

The CYPD3176-24LQXQT is a pre-programmed USB Type-C sink port controller belonging to the EZ-PD BCR-PLUS family. It supports USB PD 3.1 v1.6, including PPS, and legacy charging protocols such as BC1.2, Apple, AFC, and QC 2.0. The device operates within a 3.0 V to 24.5 V range (30 V tolerant) and integrates a complete USB Type-C transceiver, USB PD policy manager, load switch controller with soft start, termination resistors, and system-level ESD protection. It features an ARM Cortex-M0 processor with 64 KB Flash and 8 KB SRAM, housed in a 24-pin QFN package.

Controllers Feature Summary

• Supports conversion from legacy barrel connectors or USB micro-B to USB Type-C power input without invasive design modifications.
• Integrates hardware fault protection including VBUS short protection, overvoltage, overcurrent, and overtemperature monitoring.
• Provides legacy charging compatibility for standard USB Type-A ports through proprietary protocol support.

Controllers Applications

• Rechargeable devices
• Smart speakers
• Power tools
• Drones

Controllers Procurement Notes

Verify component authenticity by checking the manufacturer's marking and cross-referencing the part number against official Infineon documentation. Ensure the ordering suffix matches the required tape and reel packaging specifications. Confirm that the firmware version aligns with the specific application requirements before integration into the final product design.

Controllers Selection Notes

Select this component when replacing legacy barrel connectors or USB micro-B power inputs with USB Type-C receptacles. It is suitable for designs requiring minimal external components and no custom firmware development. Verify that the target application falls within the supported voltage and current ranges defined by the resistor divider networks.

Controllers Part Context

This component is part of the EZ-PD BCR-PLUS series designed specifically for Barrel Connector Replacement applications. It serves as a drop-in solution for upgrading existing electronic devices to accept USB-C power delivery while maintaining backward compatibility with older charging standards and power supplies.

Controllers Replacement Considerations

CYPD3177-24LQXQ

Controllers FAQ

Does the default firmware support Over-Temperature Protection (OTP)?

No, OTP is not implemented in the default pre-programmed firmware. It must be explicitly enabled using the EZ-PD Configuration Utility, and the FLIP pin must be re-purposed as a thermistor input.

How is the I2C interface configured?

The integrated Serial Communication Block acts as an I2C slave interface with a fixed address of 0x08. It supports operation at speeds up to 1 Mbps and is compatible with 1.8 V and 3.3 V IO levels.

What is the function of the SAFE_PWR_EN pin?

The SAFE_PWR_EN gate driver enables an alternate load switch or FET to deliver a limited 5 V/900 mA contract when the device fails to negotiate the requested higher power contract from the USB Type-C port.