The Texas Instruments TUSB2046BVF is a fully compliant USB 2.0 full‑speed hub controller designed to expand one USB port into four downstream ports for connecting multiple USB devices. Implemented with an integrated digital state machine, this ASIC requires no firmware programming and includes integrated USB transceivers for both upstream and downstream ports. The device supports full‑speed (12 Mbps) and low‑speed USB devices, automatically adjusting slew rates as needed. With selectable bus‑powered or self‑powered modes and configurable power switching/overcurrent detection per port, the TUSB2046BVF offers flexible power management options. Its 32‑pin LQFP package makes it suitable for surface‑mount PCB designs in computing peripherals, docking stations, embedded systems, and consumer electronics.
| Specification | Detail |
|---|---|
| Manufacturer | Texas Instruments |
| Model | TUSB2046BVF |
| Function | USB Hub Controller |
| USB Standard | USB 2.0 Full‑Speed (12 Mbps) |
| Ports | 1 Upstream, 4 Downstream |
| Power Modes | Bus‑Powered, Self‑Powered |
| Supply Voltage | 3.0 V – 3.6 V |
| Supply Current | ~40 mA |
| Package / Case | 32‑LQFP (7 × 7 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0 °C to +70 °C |
| Control Features | Ganged/per‑port power/overcurrent modes |
| ESD Protection | Integrated USB transceivers/ESD filtering |


