TUSB2046BIRHBRQ1

Controllers Overview

The TUSB2046BIRHBRQ1 is a USB 2.0-compliant full-speed hub controller designed for automotive applications, featuring one upstream port and four downstream ports. It operates on a 3.3-V supply with a recommended range of 3.0 V to 3.6 V and supports data rates up to 12 Mb/s. The device utilizes a 32-pin VQFN package measuring 5.00 mm × 5.00 mm with a 0.5-mm pitch. It functions within an operating temperature range of -40°C to +85°C and includes integrated USB transceivers, power management logic, and an optional serial EEPROM interface for programmable VID and PID.

Controllers Feature Summary

• Qualified for automotive applications and fully compliant with the USB specification as a full-speed hub.
• State machine implementation requires no firmware programming, eliminating the need for external microcontrollers.
• Supports both bus-powered and self-powered modes with configurable ganged or per-port overcurrent detection.
• Enables low EMI emission through flexible clocking options using either a 6-MHz crystal input or a 48-MHz clock source.

Controllers Applications

• Automotive infotainment systems
• In-vehicle USB connectivity hubs
• Automotive peripheral expansion interfaces

Controllers Procurement Notes

Verify that the specific ordering suffix matches the required tape-and-reel packaging configuration. Confirm that the component meets AEC-Q100 qualification standards for automotive reliability. Ensure the design accounts for the 32-pin VQFN thermal pad requirements for proper heat dissipation during operation.

Controllers Selection Notes

Select this component when a firmware-free USB hub solution is required for automotive environments. Consider the 32-pin VQFN package for compact PCB layouts. Evaluate the need for external EEPROM if custom Vendor ID and Product ID descriptors are necessary for system enumeration.

Controllers Part Context

This part belongs to the TUSB2046B-Q1 family of USB hub controllers from Texas Instruments. It is derived from the proven TUSB2040 architecture but offers enhanced system ESD performance and lower cost. The device serves as a direct upgrade for legacy automotive USB hub designs requiring robust compliance and simplified integration.

Controllers Replacement Considerations

Public confirmed substitute part numbers: TUSB2046BIRHBT, TUSB2046IBVFR.