LNK 574 PN power Integrations - AC/DC Converters 3W 85-265 VAC 3W 230VAC OCP 8DIP-7 (LNK574PN)

Power Integrations LNK574PN AC/DC Converter 3W 85-265VAC 8DIP-7

The LNK574PN from Power Integrations is an AC/DC converter within the LinkZero™-LP controller family. It is designed for energy efficiency, automatically entering and exiting no-load mode. This device consumes less than 5 mW from AC power, aligning with the IEC 62301 standby power definition. The LNK574PN provides accurate constant voltage regulation across a 5% to full load range. It integrates start-up and operating power directly from the DRAIN pin, eliminating external circuitry. Frequency jittering is incorporated to reduce quasi-peak and average EMI. This 8DIP-7 IC facilitates robust power conversion for various electronic applications.

Specifications:

• Model: LNK574PN
• Type: AC/DC Offline Converter
• Mounting Form: DIP-8B-7
• Input Voltage Range: 85 - 265 VAC
• Breakdown Voltage: 700V
• Output Power: 3W @ 85-265VAC
• Number of Pins: 7
• Operating Temperature: -40 to +150 °C
• Switching Frequency: 100 kHz

Key features and benefits:

• Automatically enters low-consumption power-down mode when load drops below ~0.6% of full load.
• Achieves ultra-low standby power consumption, less than 5 mW at 230 VAC.
• Provides accurate primary-side regulated constant voltage from 5% to full load.
• Integrated start-up and operating power from DRAIN pin, eliminating external circuitry.
• Frequency jittering reduces EMI filter cost.
• Extended package creepage improves system field reliability.
• Offers a simple upgrade path for existing LinkSwitch-LP designs.

Applications:

• Energy-efficient standby power supplies for appliances.
• Compact power adapters for consumer electronics.
• Smart home devices and IoT applications requiring minimal standby power.
• Auxiliary power supplies in larger industrial or commercial systems.
• Chargers for portable electronic devices.

Frequently Asked Questions:

Q: What is the standby power consumption of the LNK574PN?
A: The LNK574PN consumes less than 5 mW from AC power in no-load mode, meeting the IEC 62301 standby power definition.

Q: How does the LNK574PN reduce EMI?
A: The LNK574PN incorporates integrated frequency jittering, which significantly reduces both quasi-peak and average EMI.

Q: Does the LNK574PN require external start-up components?
A: No, the LNK574PN derives its start-up and operating power directly from the DRAIN pin, eliminating the need for external circuitry.

Package Includes:

*Image shown is a representation only.

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