TUSB2046BVF datasheet by Texas Instruments

TUSB2046BVF Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the TUSB2046BVF?
  A good PCB layout for the TUSB2046BVF involves keeping the USB traces as short as possible, using a solid ground plane, and minimizing the distance between the device and the USB connector. TI provides a recommended PCB layout in the datasheet and application notes.
• How do I handle the 1.5kΩ pull-up resistor on the D+ line?
  The 1.5kΩ pull-up resistor on the D+ line is required for USB enumeration. It should be connected between the D+ line and VBUS. Make sure to use a resistor with a low tolerance (e.g., 1%) to ensure reliable operation.
• What is the maximum cable length supported by the TUSB2046BVF?
  The TUSB2046BVF supports USB 2.0, which has a maximum cable length of 3 meters (10 feet). However, the actual cable length may be limited by the specific application and the quality of the cable.
• How do I implement overcurrent protection with the TUSB2046BVF?
  The TUSB2046BVF has an internal overcurrent protection (OCP) feature that can be enabled by connecting the OCP pin to a resistor divider network. The OCP threshold can be adjusted by selecting the appropriate resistor values.
• Can I use the TUSB2046BVF in a USB 3.0 or USB 3.2 application?
  No, the TUSB2046BVF is a USB 2.0 transceiver and is not compatible with USB 3.0 or USB 3.2. For USB 3.0 or USB 3.2 applications, consider using a different device, such as the TUSB1310 or TUSB402.