VPOL5A-12-SIP - CUI Inc.

VPOL5A-12-SIP 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 under the module to dissipate heat. A minimum of 2oz copper thickness is recommended. Additionally, ensure good airflow around the module and avoid blocking the airflow vents.
• How do I ensure the module is properly soldered and what are the recommended soldering conditions?
  CUI recommends using a soldering iron with a temperature range of 250-260°C (482-500°F) and a solder with a melting point of 180-200°C (356-392°F). Ensure the module is properly aligned and secured to the PCB before soldering. Use a soldering technique that minimizes thermal shock and avoids applying excessive force.
• What are the electrical characteristics of the output voltage and current?
  The VPOL5A-12-SIP has a regulated output voltage of 12V ±5% and a maximum output current of 5A. The output voltage ripple is typically 1% of the nominal output voltage, and the output noise is typically 10mVp-p.
• How do I implement overcurrent protection and short-circuit protection?
  CUI recommends implementing overcurrent protection using an external current sense resistor and a fuse or a circuit breaker. For short-circuit protection, use a fuse or a circuit breaker with a rating that matches the maximum output current of the module.
• What are the recommended input voltage and input capacitance values?
  The recommended input voltage range is 18-36VDC, and the recommended input capacitance value is 10-22μF. Ensure the input capacitance is rated for the maximum input voltage and has a low ESR to minimize input voltage ripple.