PSK-20D-24-T - CUI Inc.

PSK-20D-24-T Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  CUI recommends a PCB layout with a solid ground plane and thermal vias to dissipate heat. A minimum of 2 oz copper thickness is recommended. Additionally, ensure good airflow around the device and consider using a heat sink if operating in high-temperature environments.
• How do I ensure reliable startup and shutdown of the power supply?
  To ensure reliable startup and shutdown, CUI recommends a soft-start circuit to limit inrush current. Additionally, ensure that the input voltage is within the specified range and that the output is properly decoupled with capacitors.
• What is the maximum allowable capacitance on the output?
  The maximum allowable capacitance on the output of the PSK-20D-24-T is 2200uF. Exceeding this value may cause instability or oscillation in the power supply.
• Can I use this power supply in a redundant or parallel configuration?
  Yes, the PSK-20D-24-T can be used in a redundant or parallel configuration, but it requires additional external circuitry to ensure proper operation and fault tolerance. Consult with CUI's application engineers for guidance on implementing such a configuration.
• What is the expected lifespan of the power supply, and what are the most common failure modes?
  The expected lifespan of the PSK-20D-24-T is typically 5-7 years, depending on operating conditions. The most common failure modes are electrolytic capacitor wearout, overvoltage stress, and thermal stress. Proper thermal management, input voltage regulation, and output overvoltage protection can help extend the lifespan of the power supply.