TUSB8040ARKMT

Controllers Overview

The TUSB8040ARKMT is a second-generation SuperSpeed USB hub controller manufactured by Texas Instruments. It supports four downstream ports operating at data rates up to 5 Gb/s, compliant with the USB 3.0 standard. The device operates on dual power supplies of 1.1 V and 3.3 V, with a typical operating supply current of 15 uA. It is housed in a WQFN-100 package (9x9 mm) designed for surface mount installation. The component functions as an I2C/SMBus interface hub controller within the TUSB8040A series.

Controllers Feature Summary

• Supports four downstream SuperSpeed USB ports with backward compatibility to previous USB generations.
• Integrates advanced power management capabilities including per-port power switching and battery charging detection.
• Features a compact 100-pin WQFN package optimized for space-constrained mobile and desktop applications.

Controllers Applications

• Mobile computing devices requiring high-speed peripheral connectivity
• Desktop docking stations and expansion hubs
• All-in-one PCs and monitors with USB upstream connections

Controllers Procurement Notes

Verify the specific suffix 'ARKMT' against the manufacturer's latest datasheet to confirm pinout and electrical specifications. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for obsolescence notices as the component may be designated as Not Recommended for New Designs.

Controllers Selection Notes

Select this model when a four-port SuperSpeed solution is required in a WQFN-100 footprint. Ensure the design accommodates the 1.1V and 3.3V dual voltage requirements. Consider thermal dissipation characteristics inherent to the WQFN package for the target application environment.

Controllers Part Context

This part belongs to the TUSB8040A family of USB 3.0 hub controllers from Texas Instruments. It serves as a successor to earlier generation hubs, offering improved power efficiency and feature sets. The 'ARKMT' suffix denotes the specific tape-and-reel packaging and temperature grade variant within the product line.

Controllers Replacement Considerations

TUSB8041RGCR is listed as a similar alternative. Verify pin-to-pin compatibility and functional equivalence before substitution. Note that the TUSB8040ARKMT is marked as Not Recommended for New Designs.