VQA-S15-D9-SIP - CUI Inc.

VQA-S15-D9-SIP Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  CUI recommends a PCB layout with a large copper area underneath the module to dissipate heat effectively. A minimum of 1 oz copper thickness is recommended, and the use of thermal vias can further improve heat dissipation.
• How do I ensure the module is properly soldered to the PCB?
  CUI recommends using a soldering iron with a temperature range of 250°C to 260°C, and a solder with a melting point of 180°C to 190°C. Apply a small amount of solder to the pads and ensure the module is properly aligned before soldering.
• What is the maximum allowable voltage deviation for the input voltage?
  The VQA-S15-D9-SIP can tolerate a maximum voltage deviation of ±10% of the nominal input voltage. Exceeding this deviation may affect the module's performance and reliability.
• How do I protect the module from overvoltage and overcurrent conditions?
  CUI recommends using external overvoltage protection (OVP) and overcurrent protection (OCP) circuits to prevent damage to the module. The OVP should be set to 15% above the nominal input voltage, and the OCP should be set to 1.5 times the maximum rated current.
• What is the typical efficiency of the VQA-S15-D9-SIP module?
  The typical efficiency of the VQA-S15-D9-SIP module is around 85% to 90% depending on the input voltage and output load conditions. Refer to the datasheet for detailed efficiency curves.