LED DRVR Flyback 1-CH Triac 10-Pin MSOP

The MP4033 is a TRIAC-dimmable primaryside–control, offline LED lighting controller with active PFC. It is also available for applications that requires analog dimming with PWM input. It outputs an accurate LED current for an isolated lighting application with a single-stage converter. The proprietary real-current–control method accurately controls the LED current using primary-side information. The MP4033 implements power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses. The adaptive dimmer type detection and phasecut-based dimming control achieves good dimmer compatibility and deep dimming range. The MP4033 has an integrated charging circuit at the supply pin for fast start-up without a perceptible delay

• Primary-Side-Control without Requiring a Secondary-Side Feedback Circuit
• Adaptive Dimmer Type Detection and Phase-Cut-Based Dimming Control
• Good Dimmer Compatibility and Deep Dimming Range
• Analog Dimming with PWM Input
• Fast Start-Up without Perceptible Delay
• Programmable Current Fold-back to Prolong the LED lifetime (NTC)
• Color Temperature and Brightness Control for Warm Sunset Dimming application
• Accurate Line & Load Regulation
• High Power Factor
• Operates in Boundary Conduction Mode
• Cycle-by-Cycle Current Limit
• Winding Short Circuit Protection
• Output Over-Voltage Protection
• Output Short-Circuit Protection
• ZCD Pin Short-Circuit Protection
• Over-Temperature Protection
• Available in SOIC-8/MSOP-10/SOIC-14 Package