LNK6773K - Power Integrations

LNK6773K Frequently Asked Questions (FAQs)

• What is the maximum allowed voltage on the BYPASS pin?
  The maximum allowed voltage on the BYPASS pin is 6.5V. Exceeding this voltage can damage the IC.
• How do I ensure the LNK6773K is in a low-power state during startup?
  To ensure the LNK6773K is in a low-power state during startup, make sure the voltage on the VIN pin is below 1V. This will prevent the IC from drawing excessive current during startup.
• What is the recommended layout for the LNK6773K to minimize EMI?
  To minimize EMI, it is recommended to keep the layout as compact as possible, with the input and output components placed close to the IC. Also, ensure that the drain pin is connected to the output capacitor with a short, wide trace to reduce inductance.
• Can I use the LNK6773K in a flyback converter topology?
  Yes, the LNK6773K can be used in a flyback converter topology. However, it is essential to ensure that the transformer is designed to handle the high voltage stress during startup and operation.
• How do I calculate the minimum input capacitance required for the LNK6773K?
  The minimum input capacitance required for the LNK6773K can be calculated using the formula: CIN(min) = (VIN * IIN) / (fSW * ΔVIN), where VIN is the input voltage, IIN is the input current, fSW is the switching frequency, and ΔVIN is the allowed input voltage ripple.