PDP1-S5-S5-M - CUI Inc.

PDP1-S5-S5-M 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 1 oz copper thickness is recommended. For thermal management, a heat sink or thermal interface material can be used to reduce thermal resistance.
• How do I ensure reliable start-up and shutdown of the power supply?
  To ensure reliable start-up and shutdown, CUI recommends a soft-start circuit to limit inrush current and a shutdown circuit to prevent voltage spikes. Additionally, a minimum load of 10% is recommended to maintain stability.
• What are the EMI filtering requirements for this power supply?
  The PDP1-S5-S5-M meets CISPR 22 Class B emissions standards. For additional EMI filtering, CUI recommends using a common-mode choke and X-capacitors on the input lines.
• Can I use this power supply in a high-altitude or high-temperature environment?
  The PDP1-S5-S5-M is rated for operation up to 5,000 meters (16,400 ft) and 40°C ambient temperature. For high-altitude or high-temperature applications, derating may be necessary. Consult CUI's application notes for guidance.
• What is the MTBF (Mean Time Between Failures) rating for this power supply?
  The PDP1-S5-S5-M has a calculated MTBF of 550,000 hours at 25°C, based on MIL-HDBK-217F calculations. This rating is subject to change based on operating conditions and environmental factors.