PEME1-S12-S12-S - CUI Inc.

PEME1-S12-S12-S 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. Additionally, a thermal interface material (TIM) can be used to improve heat transfer between the module and the heat sink.
• How do I ensure reliable start-up and shutdown of the module?
  To ensure reliable start-up and shutdown, CUI recommends a soft-start circuit to limit inrush current and a shutdown circuit to prevent back-feeding of the input voltage. Additionally, a minimum input capacitance of 10uF is recommended to ensure stable operation.
• What are the derating curves for temperature and altitude?
  CUI provides derating curves for temperature and altitude in the application notes section of the datasheet. The module's power rating is derated by 2.5% per 1000 ft above sea level and by 1.5% per 10°C above 25°C ambient temperature.
• Can I use this module in a redundant or parallel configuration?
  Yes, the PEME1-S12-S12-S can be used in a redundant or parallel configuration. However, CUI recommends consulting with their application engineers to ensure proper design and implementation to avoid any potential issues with synchronization, current sharing, and fault tolerance.
• What is the recommended input and output filtering to meet EMC requirements?
  CUI recommends using a pi-filter (L-C-L) configuration on the input and output lines to meet EMC requirements. The filter components should be selected based on the specific application and environment to ensure compliance with relevant standards such as EN55022 and CISPR22.