Overview
The TUSB2046BIRHBRG4 is a USB hub controller produced by Texas Instruments, designed to comply with the Universal Serial Bus (USB) specification as a full-speed hub. This device features a 3.3-V CMOS implementation with integrated USB transceivers for all upstream and downstream ports. It operates without the need for firmware programming, thanks to its digital state machine implementation. The TUSB2046BIRHBRG4 supports one upstream port and four downstream ports, which can handle both full-speed and low-speed devices by automatically adjusting the slew rate according to the attached device's speed.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 32-Pin VQFN (RHB) |
| Pins | 32 |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage | 3 V to 3.6 V |
| Current Supply | 40 mA |
| Power Source Modes | Self-Powered, Bus-Powered |
| Clock Input | 6 MHz or 48 MHz |
| Lead Free Status / RoHS Status | Lead Free / RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
Key Features
- Fully compliant with the USB specification as a full-speed hub.
- No firmware programming required due to digital state machine implementation.
- Integrated USB transceivers for all upstream and downstream ports.
- One upstream port and four downstream ports supporting full-speed and low-speed operations.
- Push-pull outputs for PWRON pins eliminate the need for external pullup resistors.
- Noise filtering on OVRCUR pins provides immunity to voltage spikes.
- Supports suspend and resume operations.
- Programmable Vendor ID and Product ID with external serial EEPROM.
- Low EMI emission achieved by a 6-MHz crystal input.
- Enhanced system ESD performance.
- No special driver requirements; works seamlessly with any operating system with USB stack support.
Applications
The TUSB2046BIRHBRG4 is suitable for a variety of applications requiring USB hub functionality, including:
- USB peripherals and hubs.
- Industrial control systems.
- Medical devices.
- Consumer electronics such as printers, scanners, and multimedia devices.
- Embedded systems requiring multiple USB ports.
Q & A
- What is the TUSB2046BIRHBRG4? The TUSB2046BIRHBRG4 is a USB hub controller produced by Texas Instruments, designed to comply with the Universal Serial Bus (USB) specification as a full-speed hub.
- How many ports does the TUSB2046BIRHBRG4 support? It supports one upstream port and four downstream ports.
- What are the power source modes of the TUSB2046BIRHBRG4? The device supports both self-powered and bus-powered modes.
- Does the TUSB2046BIRHBRG4 require firmware programming? No, it does not require firmware programming due to its digital state machine implementation.
- What is the operating temperature range of the TUSB2046BIRHBRG4? The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the TUSB2046BIRHBRG4? The supply voltage range is 3 V to 3.6 V.
- Does the TUSB2046BIRHBRG4 support suspend and resume operations? Yes, it supports suspend and resume operations.
- Can the TUSB2046BIRHBRG4 use different clock inputs? Yes, it can use either a 6-MHz or a 48-MHz clock input.
- Is the TUSB2046BIRHBRG4 RoHS compliant? Yes, it is lead-free and RoHS compliant.
- What are some common applications of the TUSB2046BIRHBRG4? Common applications include USB peripherals, industrial control systems, medical devices, and consumer electronics.
