TOP253EG Frequently Asked Questions (FAQs)

• What is the maximum output power of the TOP253EG?
  The maximum output power of the TOP253EG is dependent on the input voltage, output voltage, and the transformer turns ratio. However, as a general guideline, it can deliver up to 65W of output power.
• How do I select the right transformer for the TOP253EG?
  The transformer selection depends on the input voltage, output voltage, and the desired output power. Power Integrations provides a transformer design tool and guidelines in the application notes to help with the selection process.
• What is the purpose of the BYPASS pin on the TOP253EG?
  The BYPASS pin is used to connect an external bypass capacitor to the internal voltage regulator. This helps to reduce the noise and improve the overall power supply performance.
• How do I implement overvoltage protection (OVP) with the TOP253EG?
  The TOP253EG has a built-in OVP feature that can be enabled by connecting a resistor and a zener diode between the VCC pin and the GND pin. The application notes provide more details on the implementation.
• What is the maximum ambient temperature rating for the TOP253EG?
  The TOP253EG has a maximum ambient temperature rating of 85°C, but it can be derated to 70°C for high-reliability applications.