The MP4026GJ is a primary-side-control, offline LED controller that achieves high-power factor and accurate LED current for isolated, single-power-stage lighting applications in an FCTSOT package. It is the next generation of the successful MP4021A. The proprietary real-current-control method accurately controls LED current from primary-side information with good line and load regulation. The primary-side-control eliminates the secondary-side feedback components and the opto-coupler to significantly simplify LED-lighting-system design. The MP4026GJ integrates power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses. The MP4026s multiple protection features greatly enhance system reliability and safety. These features include over-voltage protection, short-circuit protection, primary-side over-current protection, brown out protection, cycle-by-cycle current limiting, VCC under-voltage lockout, and auto-restart over-temperature protection.
Feature
- Real-Current Control without Secondary-Feedback Circuit
- <2% Line/Load Regulation
- High Power Factor (=0.9) over Universal Input Voltage
- Boundary Conduction Mode for Improved Efficiency
- Brown-Out Protection
- Over-Voltage Protection
- Short-Circuit Protection
- Over-Temperature Protection
- Primary-Side Over-Current Protection
- Cycle-by-Cycle Current Limit
- Input UVLO
- Available in FCTSOT-6