PSK-45-12 - CUI Inc.

PSK-45-12 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 rises and falls slowly (typically 10-20 ms) to prevent voltage spikes and oscillations.
• What is the maximum allowable capacitance on the output?
  The maximum allowable capacitance on the output is 2200 uF. Exceeding this value may cause instability or oscillations in the power supply. It's essential to follow the recommended output capacitance value to ensure reliable operation.
• Can I use the PSK-45-12 in a redundant or parallel configuration?
  Yes, the PSK-45-12 can be used in a redundant or parallel configuration. However, it's crucial to follow CUI's guidelines for synchronization and current sharing to ensure reliable operation and prevent damage to the devices.
• What is the typical efficiency of the PSK-45-12 at different loads?
  The typical efficiency of the PSK-45-12 is around 85-90% at 50% load, 80-85% at 25% load, and 75-80% at 10% load. However, actual efficiency may vary depending on the input voltage, output voltage, and operating temperature.