TUSB2046IBVFR

TUSB2046IBVFR is Texas Instruments’ USB 2.0 hub controller that provides four downstream ports and one upstream port, enabling you to add a four-port USB hub to a host system.
Key points:
- USB 2.0 High-Speed support (up to 480 Mbps) on the upstream and downstream ports.
- Configurable as bus-powered or self-powered; provides per-port power switching and over‑current protection.
- Handles hub management/enumeration; typical host-side USB stack talks to it as a standard USB hub.
- Industrial temperature variant (the “I” in the device name suggests industrial range) with the BVFR package code (packaging/lead-free, reel as applicable).
Typical applications:
- Embedded systems, docking stations, printers, scanners, and consumer electronics needing a four-port USB hub.
For exact electrical specs, register map, timing, pinout, and power sequencing, consult the TI TUSB2046 data sheet and product page.

Functionally equivalent devices are 4‑port Hi‑Speed (USB 2.0) hub controllers such as Microchip USB2514B (and USB2512 series), Pericom/Diodes PI3/PI7 USB hub families, and Genesys Logic GL850G‑series. For a pin‑for‑pin drop‑in replacement, compare datasheets (pinout, power, hub features, USB transceiver options) and consult vendor cross‑reference.

Here are the key features of the TUSB2046IBVFR (USB 2.0 4-port hub):
- 4 downstream ports + 1 upstream port (USB 2.0 High-Speed hub)
- USB 2.0 Hi-Speed (480 Mbps) with USB 1.1 backward compatibility
- On-chip hub controller with integrated high-speed transceivers
- Per-port downstream power switches with overcurrent protection
- Per-port current limit control (up to 500 mA per port after enumeration)
- Hot-plug capable with suspend/resume and port power sequencing
- Flexible power options (bus-powered or self-powered via external supply)
- Industrial temperature range (-40°C to 85°C)
- Compact BVFR package suitable for space-constrained designs

Pin count: 32 pins (32-pin VQFN package for device code TUSB2046IBVFR).
Function: USB 2.0 Hi‑Speed (480 Mbps) 4‑port hub controller — one upstream port and four downstream ports. It provides USB hub management (port routing/status), integrated analog transceivers, per‑port power switching/over‑current detection and control, supports full/low/high‑speed devices, and is USB‑2.0 compliant for adding four downstream USB ports to a host.

Manufacturer: Texas Instruments Incorporated (TI).
What kind of company: TI is an American multinational semiconductor company that designs, manufactures and sells integrated circuits and other semiconductor devices—especially analog chips, embedded processors and mixed-signal ICs—for use in consumer, automotive, industrial and communications electronics. The TUSB2046IBVFR itself is a TI USB 2.0 hub controller device.

- Four‑port USB 2.0 hub controller for USB expansion
- PC and notebook USB hubs and docking stations
- External storage enclosures and drive docks
- Printers, scanners and multifunction peripherals
- Consumer electronics hubs (set‑top boxes, TVs, media players)
- Automotive head units/infotainment USB hubs
- Industrial kiosks, data‑acquisition and peripheral distribution systems
Note: It integrates hub PHY and power management, suitable for embedded and consumer/applications requiring four downstream ports.

VQFN-28 (5x5 mm) package.