MP4027 Description
The MP4027 is a primary-side-control, offline LED lighting controller. In a tiny TSOT23-8 package, it achieves high power factor (PF) and accurate LED current for isolated, single-powerstage lighting applications. This simplifies LED-lighting-system design significantly by eliminating the secondary-side feedback ponents and the optocoupler.
MP4027 Key Features
- Real-Current Control without SecondaryFeedback Circuit
- <2% Line/Load Regulation
- NTC Thermal Current Fold-Back
- PWM Dimming Available
- High PF (≥0.9) over Universal Input Voltage
- Valley Switching Mode for Improved
- Brown-Out Protection
- Over-Voltage Protection
- Short-Circuit Protection
- Over-Temperature Protection