RAC03-05SE/277 - RECOM Power

RAC03-05SE/277 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  The recommended PCB layout for optimal thermal performance involves placing the module on a multi-layer PCB with a large copper area for heat dissipation, ensuring good thermal conductivity and minimal thermal resistance.
• How do I ensure reliable start-up and operation with a high-impedance input source?
  To ensure reliable start-up and operation with a high-impedance input source, it is recommended to add a soft-start circuit or a high-value capacitor at the input to reduce the inrush current and prevent voltage drops.
• What are the recommended input and output capacitors for optimal performance?
  The recommended input capacitors are low-ESR ceramic or film capacitors with a minimum capacitance of 10uF, while the recommended output capacitors are low-ESR ceramic or electrolytic capacitors with a minimum capacitance of 22uF.
• How do I protect the module from overvoltage and undervoltage conditions?
  To protect the module from overvoltage and undervoltage conditions, it is recommended to add overvoltage protection (OVP) and undervoltage protection (UVP) circuits, such as a voltage supervisor or a crowbar circuit, to prevent damage to the module.
• What is the recommended thermal interface material for optimal heat transfer?
  The recommended thermal interface material for optimal heat transfer is a thermal pad or thermal grease with a thermal conductivity of at least 1 W/m-K, applied between the module and the heat sink or PCB.