General Description

The MAX16841 is an LED driver for AC line (100V, 120V, 220V, and 230V AC) input lamps. It features proprietary control of the input current that allows lamps to dim smoothly from full to zero light intensity, while providing active power factor correction (PFC). It is a very flexible product that can be used in isolated (e.g., flyback) and nonisolated (e.g., buck) configurations. The conventional use of an optocoupler in isolated configurations can be avoided in MAX16841-based designs.

Features

♦ Smooth Dimming with Leading-Edge (Triac) and Trailing-Edge Dimmers

♦ Active Power Factor Correction

♦ Nonisolated (e.g., Buck) and Isolated (e.g., Flyback) Topologies

♦ Universal 90V to 264V AC Input Range

♦ Constant Frequency-Control Scheme Maximizes Efficiency at High and Low AC Line Voltage

♦ Constant Power Control with No Need for Optocouplers

♦ Very-Low Quiescent Current

♦ Output Open and Short Protection

♦ Thermal Shutdown

♦ Available in an 8-Pin SO Package

Applications

    Retrofit LED Lamps with Triac Dimming

    Universal Input LED Retrofit Lamps

    Industrial and Commercial Lighting

    Residential LED Lighting