TUSB2046IBVFR

The TUSB2046IBVFR is a Texas Instruments 4‑port USB 2.0 hub controller. It provides one upstream port to the host and four downstream ports for USB devices, handling the hub functionality in a single IC.
Key features
- USB 2.0 high‑speed capable (up to 480 Mbps per port) with downstream port support for low/full/high speeds.
- Per‑port power switches and overcurrent protection; configurable power sequencing.
- Hub management including port status, interrupts, and hub addressing.
- Configurable via a serial control interface (device-specific settings such as port enable/disable, current limits, and LED signaling).
Power/topology
- Supports bus‑powered or self‑powered configurations depending on design; typically uses 5V VBUS for downstream ports.
Applications
- Adding USB hub capability to embedded systems, consumer electronics, printers, external storage enclosures, docking stations, etc.
Suffix note
- IBVFR indicates packaging/temperature and reel options (industrial/ RoHS/tape‑and‑reel). See the datasheet for exact package type, temperature range, and electrical specs.

Here are the main features of the TI TUSB2046IBVFR USB hub controller:
- 4 downstream USB 2.0 ports + 1 upstream port to the host
- High-Speed USB 2.0 hub (up to 480 Mbps on upstream and downstream)
- Fully integrated 4-port hub controller with internal switch matrix
- Per-port power switches with overcurrent protection (independent port enable/disable)
- Supports both bus-powered and self-powered designs
- Port power management: suspend/resume and USB remote wakeup support
- USB 2.0 compliant hub functionality with standard USB signaling and plug-and-play
- RoHS/compliant package (BVFR denotes lead-free/tape-and-reel packaging)
Optional notes:
- Requires minimal external components beyond standard USB circuitry
- Provides 5V VBUS for downstream devices via per-port switches

28-pin VSSOP package (lead-free, RoHS compliant).

- Pin count: 40 pins (QFN/TQFP style package typical for TUSB2046 variants like TUSB2046IBVFR)
- Function: TI TUSB2046 is a 6-port USB 2.0 hub controller (1 upstream port + 5 downstream ports) with per-port power switches and overcurrent protection, used to connect multiple USB devices to a host.

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and digital integrated circuits, microcontrollers, processors, and related embedded electronics. It is one of the world’s largest semiconductor manufacturers.

Applications of TUSB2046IBVFR (4-port USB 2.0 hub controller):
- Adds USB expansion to a host (PCs, embedded boards).
- Used in docking stations and USB hub accessories.
- Drives USB peripherals such as printers, keyboards, mice.
- Suited for industrial/embedded equipment in rugged, RoHS-compliant designs (industrial temperature range).

Possible cross‑references for TI TUSB2046IBVFR (4‑port USB 2.0 hub controller):
- Genesys Logic GL852G/GL852D
- VIA Labs VL812 (4‑port hub)
- Microchip/SMSC USB2514B
- Renesas/NEC uPD7202x (4‑port hub controllers)
- ASMedia ASM1042/ASM1044
Note: verify pinout, features, and package compatibility for your design.