Monolithic Power Systems MP44011

Description

The MP44011 is a boundary-conduction–mode PFC controller with an internal-harmonic–injection function. It provides simple and highperformance active power-factor correction with minimal external components.

Compared against traditional boundaryconduction–mode PFC controllers, the harmonic-injection function makes the part suitable for LED lighting applications.

In LED lighting applications with two-stage structures, the harmonic-injection function can effectively reduce bus capacitance between theAC/DC and the DC/DC stage. In addition,harmonic injection can reduce the transformer size to save board space and BOM cost.

Also, the benefits of a harmonic-injection function also apply to general boost or flyback PFC applications.

The MP44011 is derived from the MP44010,except with a harmonic-injection function.

The MP44011 is available in an 8-pin SOIC package.

Features

• Boundary-Conduction–Mode PFC Controller for Pre-Regulation
• Reduced Bus Capacitance
• Reduced Transformer Size
• Internal Harmonic-Injection Function
• Precise Adjustable-Output Over-Voltage Protection
• Ultra-Low Start-Up Current
• Very Low Quiescent Current
• On-Chip Filter for Current-Sense Pin
• Disable Function
• Available in SOIC-8

Remarks

• Refer Link-https://www.monolithicpower.com/DesktopModules/DocumentManage/API/Document/GetDocument?id=110 Page no-L1=L2=Ldm1=1mH,Lcm1=47uH,Lcm2=32mH are used.

Typical applications

• General PFC Pre-Regulators
• LED Lighting Driver

More information

• Datasheet
• IC product information