UCC28C43D datasheet by Texas Instruments

UCC28C43D Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the UCC28C43D to minimize EMI?
  A good PCB layout for the UCC28C43D involves keeping the input and output stages separate, using a star-ground configuration, and placing the input filter components close to the IC. Additionally, using a solid ground plane and minimizing trace lengths can help reduce EMI.
• How do I ensure the UCC28C43D is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, check that the input and output capacitors are properly sized, and the feedback resistors are correctly chosen. You can also use simulation tools to verify the design's stability.
• What is the maximum output current the UCC28C43D can deliver?
  The UCC28C43D can deliver up to 3A of output current, but this depends on the input voltage, output voltage, and thermal conditions. Be sure to check the datasheet for specific current limits and thermal derating curves.
• Can I use the UCC28C43D in a high-temperature environment?
  The UCC28C43D is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Be sure to follow the thermal derating curves and ensure proper heat sinking to prevent overheating.
• How do I troubleshoot issues with the UCC28C43D, such as output voltage instability or oscillations?
  To troubleshoot issues, start by checking the input voltage, output voltage, and current. Verify that the component values and PCB layout match the recommended design. Use an oscilloscope to check for oscillations or voltage ringing. If issues persist, consult the datasheet and application notes for guidance.