The maximum output power of LNK403EG depends on the input voltage, output voltage, and the transformer turns ratio. However, as a general guideline, it can deliver up to 3.5 W of output power with a 12 V input and 5 V output.
To ensure that the LNK403EG operates within the SOA, you should ensure that the input voltage, output voltage, and output current are within the recommended limits. Additionally, you should also consider the thermal management of the device, as excessive temperature can reduce the SOA.
To minimize EMI, it is recommended to follow a good PCB layout practice, such as keeping the high-frequency nodes (e.g. drain and source) away from the low-frequency nodes (e.g. input and output), using a solid ground plane, and placing the transformer close to the LNK403EG. Additionally, it is also recommended to use a shielded transformer and to place a common-mode choke at the input.
To troubleshoot the LNK403EG, you should first check the input voltage, output voltage, and output current to ensure that they are within the recommended limits. You should also check the transformer turns ratio, the output filter components, and the PCB layout to ensure that they are correct. Additionally, you can use an oscilloscope to check the waveforms at the input and output to identify any anomalies.
No, the LNK403EG is designed for isolated flyback converters and should not be used in non-isolated topologies. Using it in a non-isolated topology can lead to safety issues and may not meet the required safety standards.
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