The maximum output power of the TNY288KG depends on the input voltage, output voltage, and current. However, according to the datasheet, the maximum output power is typically around 8W with a 230VAC input and 5V output.
To ensure safe operation, make sure to provide adequate heat sinking and airflow around the device. The TNY288KG has a maximum junction temperature of 150°C, and the thermal resistance (θJA) is around 30°C/W. Keep the device temperature below 125°C for reliable operation.
The recommended input capacitor value is typically between 2.2uF to 4.7uF, and a low-ESR ceramic capacitor (X5R or X7R dielectric) is recommended. This helps to filter the input voltage and reduce electromagnetic interference (EMI).
To minimize output voltage ripple, use a suitable output capacitor with low ESR (Equivalent Series Resistance) and a high capacitance value (e.g., 10uF to 22uF). Additionally, ensure the output capacitor is placed close to the output pins of the TNY288KG to reduce parasitic inductance.
The BYPASS pin is used to connect an external capacitor to the internal voltage regulator of the TNY288KG. This helps to improve the power supply rejection ratio (PSRR) and reduce the output voltage ripple. Connect a 1uF to 4.7uF ceramic capacitor between the BYPASS pin and the GND pin.
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