LNK420EG Power Integrations LED Driver Off Line Switcher IC

LNK420EG Power Integrations LED Driver Off Line Switcher IC 

The LNK420EG is a highly integrated AC-DC off-line switcher IC from Power Integrations’ LinkSwitch-TN family, specifically designed for efficient LED driver applications. It combines a high-voltage power MOSFET, PWM controller, oscillator, and built-in protection features into a single device, reducing external component count and simplifying the design of compact LED power supplies.

The LNK420EG is ideal for low to medium power LED lighting applications, offering high efficiency, low standby power consumption, and excellent reliability. It supports constant current LED driver circuits with minimal external components and excellent thermal performance.

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Applications

• AC-DC LED drivers for residential and commercial lighting
• Low-power LED bulbs and luminaires
• Decorative and architectural lighting
• Standby auxiliary LED power supplies
• Consumer electronics with integrated LED indicators

Features

• Type: LED driver AC-DC off-line switcher IC with integrated MOSFET
• Manufacturer: Power Integrations
• Family: LinkSwitch-TN
• Integrated high-voltage power MOSFET
• Wide AC input range: 85–265V AC (with proper design)
• High efficiency and ultra-low standby power consumption
• Built-in current limiting, thermal shutdown, and over-voltage protection
• Auto-restart fault protection
• Frequency jittering for reduced EMI
• Requires minimal external components
• Package: EG (SMD, eSIP-7 / small footprint)
• Long-term reliability and compact design

LNK420EG-IC datasheet