The maximum output power of the TNY287DG-TL depends on the input voltage, output voltage, and the transformer turns ratio. However, the device is typically capable of delivering up to 25W of output power.
To ensure stability, it's essential to follow the recommended layout guidelines, use a suitable transformer, and add sufficient input and output capacitors. Additionally, the device's feedback pin should be properly connected to the output voltage sense point.
The bootstrap capacitor (Cb) is used to generate the high-side gate drive voltage for the internal power MOSFET. It's essential to choose a capacitor with a suitable voltage rating and capacitance value to ensure proper operation.
When selecting a transformer, consider the input voltage, output voltage, and power rating. The transformer's turns ratio, inductance, and core material should be suitable for the application. Power Integrations provides a transformer design tool to help with the selection process.
To ensure reliable operation, it's essential to provide adequate heat sinking, use a thermally conductive PCB material, and keep the device away from heat sources. The device's thermal pad should be connected to a solid ground plane to dissipate heat efficiently.
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TNY287DG-TL Overview
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