STMicroelectronics provides a recommended PCB layout in the application note AN4571, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and reliability.
The transformer selection depends on the output power, voltage, and current requirements. STMicroelectronics provides a transformer selection guide in the datasheet, and also recommends using their online transformer selection tool to find the optimal transformer for your specific design.
The VIPER20ASP-E has a high power density, so thermal management is crucial. Ensure good airflow, use a heat sink if necessary, and follow the thermal design guidelines in the datasheet to prevent overheating and ensure reliable operation.
The VIPER20ASP-E has a built-in OVP feature, but it can be adjusted or customized using external components. Refer to the datasheet and application notes for guidance on implementing OVP to protect your design from voltage surges and spikes.
To minimize EMI and ensure EMC compliance, follow the layout and routing guidelines in the datasheet, use a shielded transformer, and consider adding EMI filters or common-mode chokes to your design. Also, ensure that your design meets the relevant regulatory standards for EMI and EMC.