VIPER26HD datasheet by STMicroelectronics

VIPER26HD Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of VIPER26HD?
  STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and a separate layer for the high-voltage power supply. The layout should also minimize the loop area of the high-frequency circuits to reduce EMI.
• How do I ensure the VIPER26HD operates within its safe operating area (SOA)?
  To ensure the VIPER26HD operates within its SOA, monitor the device's junction temperature, output current, and input voltage. Use thermal management techniques, such as heat sinks or thermal interfaces, to keep the junction temperature below 150°C.
• What are the key considerations for selecting the right transformer for the VIPER26HD?
  When selecting a transformer for the VIPER26HD, consider the transformer's turns ratio, inductance, and core material. Ensure the transformer is designed for high-frequency operation and can handle the required power levels.
• How do I optimize the VIPER26HD's output filter to minimize EMI and ensure compliance with regulatory standards?
  Optimize the output filter by selecting the right component values and layout to minimize EMI. Use a common-mode choke and a differential-mode filter to reduce conducted EMI. Ensure the filter is designed to meet the required attenuation levels for regulatory compliance.
• What are the recommended test and measurement techniques for verifying the VIPER26HD's performance?
  Use a combination of oscilloscopes, signal generators, and power analyzers to verify the VIPER26HD's performance. Measure the output voltage, current, and power factor to ensure the device is operating within its specifications.