TNY279PN datasheet by Power Integrations

TNY279PN Frequently Asked Questions (FAQs)

• What is the maximum output power that the TNY279PN can handle?
  The TNY279PN is a 700 V, 7.5 W offline switcher IC, which means it can handle a maximum output power of 7.5 W.
• How do I ensure the TNY279PN operates within a stable temperature range?
  The TNY279PN has a junction temperature range of -40°C to 150°C. Ensure good thermal design, use a suitable heat sink, and follow the recommended PCB layout to maintain a stable temperature.
• What is the purpose of the BYPASS pin on the TNY279PN?
  The BYPASS pin is used to connect an external bypass capacitor to filter the internal voltage regulator output, reducing noise and improving overall system stability.
• How do I select the right transformer for my TNY279PN-based design?
  Choose a transformer with a suitable turns ratio, core material, and wire size to ensure efficient energy transfer. Consult the Power Integrations application notes and transformer manufacturers' guidelines for selection criteria.
• What are the key considerations for PCB layout when using the TNY279PN?
  Follow a star-grounding scheme, keep high-voltage nodes away from low-voltage nodes, and use a solid ground plane to minimize EMI and ensure reliable operation.