FUSB303BTMX

Controllers Overview

The FUSB303BTMX is a fully autonomous USB Type-C port controller from onsemi, optimized for applications up to 15 W. It supports Source, Sink, and Dual Role Port (DRP) configurations with optional accessory detection. The device features configurable I2C addresses or GPIO pin configuration, ultra-low power consumption (typically < 10 µA), and dead battery support. It operates within a VDD range of 2.85 V to 5.5 V and withstands up to 28 V DC tolerance on CC and VBUS pins. Packaged in a 12-lead QFN (1.6 mm × 1.6 mm × 0.375 mm), it complies with USB Type-C Specification Release 1.3.

Controllers Feature Summary

• Fully autonomous operation with configurable I2C or GPIO control modes
• Supports Source, Sink, and DRP roles with Try.SRC/Try.SNK preference modes
• Dead battery support allowing sink role detection without internal power
• High voltage tolerance up to 28 V on connector interface pins

Controllers Applications

• Smartphones
• Tablets
• Laptops
• Power Banks
• Industrial equipment

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct packaging and reel specifications. Confirm that the component meets RoHS compliance requirements for your target market. Cross-reference the lot trace code and date codes during incoming inspection to validate manufacturing origin and assembly plant details.

Controllers Selection Notes

Select this controller for designs requiring low-power USB Type-C connection management without an embedded processor. Ensure the system voltage remains within the 2.85 V to 5.5 V operating range. Verify that the PCB layout accommodates the 12-lead QFN package dimensions and thermal requirements for the intended ambient temperature range of -40°C to +85°C.

Controllers Part Context

This component belongs to the FUSB303B series of autonomous USB Type-C controllers. It serves as a dedicated interface solution for managing USB-C connections in portable and industrial electronics. The device integrates necessary state machines and comparators to handle attachment detection and role determination independently.

Controllers Replacement Considerations

Direct substitutes include other models within the FUSB303 family, such as the FUSB303B without the TMX suffix, provided the packaging format matches the design constraints. Verify pin compatibility and register map consistency before swapping components.