深圳市齐鑫微科技有限公司
联系人：傅先生
概述
The MP4026 is a primary-side-control, offline
LED controller that achieves high-power factor
and accurate LED current for isolated, singlepower-stage lighting applications in a tiny
TSOT23-6 package. It is the next generation of
the successful MP4021A. The proprietary realcurrent-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 MP4026 integrates power-factor correction
and works in valley switching mode to reduce
MOSFET switching losses.
The MP4026’s 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, VCCunder-voltage lockout, and
auto-restart over-temperature protection.
特点
• Real-Current Control without SecondaryFeedback Circuit
• Good Line/Load Regulation
• High Power Factor (≥0.9) over Universal
Input Voltage
• Valley Switching 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 TSOT23-6
应用
• Industrial and Commercial Lighting
•Residential Lighting
