UCC28070PWR datasheet by Texas Instruments

UCC28070PWR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the UCC28070PWR to minimize EMI?
  A good PCB layout for the UCC28070PWR involves keeping the high-frequency components (such as the switching FETs and diodes) close together, using a solid ground plane, and minimizing the length of the high-current paths. TI provides a recommended layout in the datasheet and application notes.
• How do I choose the right inductor value for my design?
  The inductor value depends on the output voltage, input voltage, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. You can also use TI's online inductor selection tool or consult with a TI FAE for guidance.
• What is the maximum ambient temperature for the UCC28070PWR?
  The maximum ambient temperature for the UCC28070PWR is 85°C. However, the device can operate at higher temperatures with derating. Consult the datasheet for the thermal derating curve.
• Can I use the UCC28070PWR in a synchronous rectification topology?
  Yes, the UCC28070PWR can be used in a synchronous rectification topology. However, you'll need to ensure that the device is properly configured and the synchronous rectifier FET is properly sized to handle the reverse recovery current.
• How do I troubleshoot oscillations or instability in my UCC28070PWR-based design?
  To troubleshoot oscillations or instability, check the PCB layout, component selection, and compensation network. Ensure that the compensation network is properly designed and the device is operating within its stable operating region. Consult the datasheet and application notes for guidance.