LNK562DG datasheet by Power Integrations

LNK562DG Frequently Asked Questions (FAQs)

• What is the maximum output power that can be achieved with LNK562DG?
  The maximum output power of LNK562DG depends on the input voltage, output voltage, and the transformer design. However, Power Integrations recommends a maximum output power of 12.5 W for this device.
• How do I ensure reliable start-up of the LNK562DG?
  To ensure reliable start-up, make sure the input voltage is within the specified range (85-265 VAC), and the output voltage is properly set using the feedback pin. Also, ensure that the transformer is properly designed and wound to meet the required turns ratio and inductance values.
• What is the purpose of the BYPASS pin on the LNK562DG?
  The BYPASS pin is used to connect an external bypass capacitor to the internal voltage regulator. This pin allows the user to improve the power supply rejection ratio (PSRR) and reduce the output voltage ripple.
• How do I optimize the transformer design for LNK562DG?
  To optimize the transformer design, follow the guidelines provided in the Power Integrations application notes and design guides. Key considerations include selecting the correct core material, turns ratio, and inductance values to ensure efficient energy transfer and minimize losses.
• What is the maximum ambient temperature rating for LNK562DG?
  The maximum ambient temperature rating for LNK562DG is 85°C. However, the device can operate up to 125°C with derating. Refer to the datasheet for detailed thermal derating information.