VHB50W-Q24-S24 - CUI Inc.

VHB50W-Q24-S24 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  CUI recommends a multi-layer PCB with a large ground plane and thermal vias to dissipate heat. A minimum of 2 oz copper thickness is recommended. Ensure good airflow and consider adding a heat sink or thermal interface material for high-power applications.
• How do I ensure reliable start-up and shutdown of the converter?
  To ensure reliable start-up and shutdown, CUI recommends a soft-start circuit and a voltage supervisor to monitor the output voltage. This prevents overshoot and ensures a controlled output voltage during power-up and power-down.
• What are the EMI filtering requirements for this module?
  CUI recommends adding external EMI filters, such as common-mode chokes and X-capacitors, to meet CISPR 22 Class B emissions standards. The specific filter configuration may vary depending on the application and system requirements.
• Can I use this module in a redundant or N+1 configuration?
  Yes, the VHB50W-Q24-S24 can be used in redundant or N+1 configurations. However, CUI recommends consulting with their application engineers to ensure proper system design and synchronization of the modules.
• What is the maximum allowable capacitance on the output of the converter?
  CUI recommends limiting the output capacitance to 10uF or less to prevent oscillations and ensure stability. Excessive capacitance can cause the converter to oscillate or become unstable.