MP4051

NOT RECOMMENDED FOR NEW DESIGNS

Primary Side Control Offline Non-Isolated LED Controller with Active PFC

ALTERNATIVE PART

NRFND Datasheet

The MP4054 continues to be in production for existing customers. Please consider this alternative for new designs:

MP4054

Non-isolated Offline LED Controller with Active PFC

Features & Benefits

Unique Architecture for Superior Line Regulation
Achieve <1% Line and Load Regulation for High-Side Non-Isolated Solution
High PF (≥0.9) over Universal Input Voltage
Valley Switching Mode for Improved Efficiency
Brown-Out Protection
Over-Voltage Protection
Short-Circuit Protection
Over-Temperature Protection
Over-Current Protection
Cycle-By-Cycle Current Limit
VCC Under-Voltage Lockout Protection
Auto-Restart Function
Available in TSOT23-8 Package

… and many more!

Description

The MP4051 is a non-isolated offline LED lighting controller that achieves high power factor and accurate LED current for single-stage PFC lighting applications in a single SOIC8 package. The MP4051 integrates power factor correction and works in boundary conduction mode to reduce the MOSFET switching losses. The extremely low start-up current and quiescent current reduces the total power consumption and provides a high-efficiency solution for non-isolated lighting applications. The multi-protection features of MP4051 greatly enhance system reliability and safety. The MP4051 features over-voltage protection, short-circuit protection, cycle-by-cycle current limiting, VCC UVLO, and auto-restart over-temperature protection.