TITUSB2046BIRHBR
Overview
The TUSB2046BIRHBR is a four-port full-speed USB 2.0 hub controller designed for reliability in industrial environments. It utilizes a hard-coded state machine implementation that requires no firmware programming, simplifying the development of USB expansion systems. Operating from a 3V to 3.6V supply, it supports both bus-powered and self-powered modes with integrated transceivers for all upstream and downstream ports.
Why Choose This Part
The TUSB2046BIRHBR eliminates firmware complexity by using a dedicated hardware state machine for USB hub logic. It features noise filtering on overcurrent inputs to prevent false triggers and offers a flexible EEPROM interface for customizing Vendor and Product IDs. The 32-VQFN package is optimized for 2-layer PCB routing, reducing manufacturing costs compared to high-density alternatives.
Applications
Key Specifications
Getting Started
Design begins by selecting between a 6-MHz crystal or a 48-MHz external clock source for the clock input. Hardware configuration pins (BUSPWR, GANGED) must be strapped to define the power mode and overcurrent reporting behavior before PCB layout. For rapid prototyping, engineers often use the TUSB2046BEVM evaluation module to verify port performance and current limit circuitry.
TUSB2046B Family
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