TNY268P datasheet by Power Integrations

TNY268P Frequently Asked Questions (FAQs)

• What is the maximum output power that the TNY268P can handle?
  The TNY268P is a 6.5W offline switcher IC, but the maximum output power depends on the specific application and design. Typically, it can handle up to 5W of output power with a suitable transformer and component selection.
• How do I ensure the TNY268P operates within the specified temperature range?
  The TNY268P has a specified operating temperature range of -40°C to 150°C. Ensure proper heat sinking, avoid overheating, and follow the recommended PCB layout guidelines to maintain a safe operating temperature.
• What is the purpose of the BYPASS pin, and how do I use it?
  The BYPASS pin is used to bypass the internal voltage regulator and connect an external voltage source. This pin can be used to improve efficiency or to power external circuits. Connect an external voltage source to the BYPASS pin, and ensure the voltage is within the specified range (4.5V to 14V).
• How do I select the right transformer for my TNY268P-based design?
  Select a transformer with a suitable turns ratio, core material, and wire size. Consider factors like output power, input voltage, and desired output voltage. Consult the TNY268P datasheet and application notes for guidance on transformer selection and design.
• What are the key considerations for PCB layout and component placement when using the TNY268P?
  Follow the recommended PCB layout guidelines in the datasheet and application notes. Keep the high-voltage and low-voltage sections separate, use a solid ground plane, and place components to minimize electromagnetic interference (EMI) and noise.