The TNY268PN is a 8-pin offline switcher IC that can handle up to 8W of output power.
The TNY268PN has a thermal shutdown feature that turns off the device when the junction temperature exceeds 150°C. Ensure good thermal design and heat sinking to keep the device within a stable temperature range.
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.
Choose a transformer with a turns ratio that matches the input and output voltage requirements of your design. Ensure the transformer's power handling capability and core material are suitable for the application.
Keep the TNY268PN close to the transformer and input capacitors to minimize noise and EMI. Use a multi-layer PCB with a solid ground plane to reduce noise and improve thermal performance.