PSK-5D-5 - CUI Inc.

PSK-5D-5 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the PSK-5D-5?
  CUI Inc recommends a PCB layout with a solid ground plane, minimal trace lengths, and a decoupling capacitor (e.g., 10uF) between the input and output pins to ensure optimal performance and reduce EMI.
• How does the PSK-5D-5 handle input voltage transients and spikes?
  The PSK-5D-5 has built-in overvoltage protection (OVP) and undervoltage lockout (UVLO) to handle input voltage transients and spikes. It can withstand input voltage spikes up to 20% above the maximum rated input voltage.
• What is the maximum output capacitance that can be used with the PSK-5D-5?
  CUI Inc recommends a maximum output capacitance of 220uF to ensure stable operation and prevent oscillations. Exceeding this value may lead to instability or reduced performance.
• Can the PSK-5D-5 be used in a redundant or parallel configuration?
  Yes, the PSK-5D-5 can be used in a redundant or parallel configuration to achieve higher power output or redundancy. However, it is essential to ensure proper synchronization and ORing diodes to prevent back-feeding and ensure reliable operation.
• What is the thermal derating curve for the PSK-5D-5?
  CUI Inc provides a thermal derating curve in the datasheet, which indicates the maximum output power reduction required to ensure reliable operation at elevated temperatures. The curve is based on a maximum junction temperature of 125°C.