SRU5028-680Y - Bourns

SRU5028-680Y Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the SRU5028-680Y?
  Bourns recommends a symmetrical PCB layout with a solid ground plane, and keeping the input and output traces as short as possible to minimize parasitic inductance and capacitance. A 4-layer PCB with a dedicated power plane and a solid ground plane is also recommended.
• How do I ensure the SRU5028-680Y is properly cooled in my application?
  The SRU5028-680Y has a thermal pad on the bottom of the package. Ensure good thermal contact between the thermal pad and a heat sink or a metal plate on the PCB. Apply a thin layer of thermal interface material (TIM) to the thermal pad before attaching the heat sink or metal plate.
• What is the maximum allowed voltage imbalance between the input and output of the SRU5028-680Y?
  The maximum allowed voltage imbalance is ±10% of the nominal input voltage. Exceeding this limit may cause the device to malfunction or reduce its lifespan.
• Can I use the SRU5028-680Y in a high-reliability or aerospace application?
  The SRU5028-680Y is a commercial-grade device and may not meet the requirements for high-reliability or aerospace applications. Bourns offers other products that are specifically designed and qualified for these applications. Contact Bourns for more information.
• How do I troubleshoot issues with the SRU5028-680Y, such as overheating or output voltage instability?
  Start by verifying the input voltage, output load, and ambient temperature are within the specified operating conditions. Check the PCB layout and ensure good thermal contact between the device and the heat sink or metal plate. Use an oscilloscope to monitor the input and output waveforms and look for signs of oscillation or instability.