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 Ultra-Low Standby (8DIP-7)

The LNK574PN from Power Integrations is an advanced AC/DC converter, part of the innovative LinkZero™-LP controller family. This device sets a new standard for energy efficiency by automatically entering and waking from no-load mode. It consumes less than 5 mW from AC power, effectively rounding to zero based on the IEC 62301 standby power definition. The LNK574PN ensures accurate constant voltage regulation from 5% to full load through its precisely specified FEEDBACK (FB) pin voltage reference. Its design eliminates the need for external start-up circuitry, deriving power directly from the DRAIN pin. Furthermore, integrated frequency jittering significantly reduces both quasi-peak and average EMI, simplifying design and lowering costs. This 8DIP-7 IC is an ideal solution for modern, energy-conscious electronic applications requiring robust and reliable power conversion.

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.
• Detects load reconnection and automatically restarts regulation.
• 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 significantly 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.
• Any application demanding ultra-low no-load power consumption.

Package Includes:

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