ZUS102405 - Cosel

ZUS102405 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  Cosel recommends a PCB layout with a large copper area for heat dissipation, and a minimum of 2oz copper thickness. A thermal via array under the module can also improve heat transfer.
• How do I ensure reliable start-up and shutdown of the ZUS102405?
  To ensure reliable start-up and shutdown, Cosel recommends a soft-start circuit to limit inrush current, and a shutdown circuit with a minimum of 10ms delay to prevent voltage spikes.
• What are the derating curves for the ZUS102405 at high temperatures?
  Cosel provides derating curves in the application note AN-101, which shows the maximum output power reduction at high temperatures. For example, at 80°C, the output power is derated to 70% of the maximum rating.
• Can I use the ZUS102405 in a redundant configuration for high availability applications?
  Yes, the ZUS102405 can be used in a redundant configuration with a 1+1 or N+1 architecture. Cosel recommends using a diode ORing circuit to ensure seamless switchover between modules.
• What are the EMI filter requirements for the ZUS102405?
  Cosel recommends using a CISPR 22 Class B EMI filter with a minimum of 30dB attenuation at 150kHz to ensure compliance with electromagnetic interference regulations.