DESCRIPTION

The MP4021A is a primary-side–control offline LED lighting controller that achieves high power factor and accurate LED current for isolated single-power-stage lighting applications in a single SOIC8 package. The proprietary real current control method accurately controls LED current from primary-side information. Eliminating the secondary-side feedback components and the optocoupler significantly simplifies the LED lighting system design.

FEATURES

• Real current control without secondary feedback circuit

• Typical ±1.5 load regulation

• Unique architecture for superior line regulation

• High power factor≥0.9 over universal input voltage

• Boundary conduction mode improves efficiency

• Ultra-low (20µA) start-up current

• Low (1mA) quiescent current

• Input UVLO

• Cycle-by-cycle current limit

• Over-voltage protection

• Short-circuit protection

• Over-temperature protection

• Available in an SOIC8 package

APPLICATIONS

• Solid-state lighting

• Industrial and commercial lighting

• Residential lighting