TUHS3F05 - Cosel

TUHS3F05 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 TUHS3F05?
  To ensure reliable start-up and shutdown, Cosel recommends a soft-start circuit to limit inrush current, and a shutdown circuit to prevent voltage spikes. Consult the application note for specific guidance.
• What are the derating curves for the TUHS3F05 at high temperatures?
  Cosel provides derating curves in the application note, which show the maximum output power and current at elevated temperatures. These curves help ensure safe operation within the specified temperature range.
• Can I use the TUHS3F05 in a redundant configuration for high availability?
  Yes, the TUHS3F05 can be used in a redundant configuration to achieve high availability. Cosel recommends using a redundant architecture with diode ORing and a decoupling capacitor to ensure seamless switchover.
• What are the EMI filter requirements for the TUHS3F05?
  Cosel recommends using a CISPR 22 Class B compliant EMI filter to meet electromagnetic interference requirements. The application note provides guidance on filter selection and implementation.