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reference designMP44011

Monolithic Power Systems MP44011

Boundary-Mode PFC Controller with Harmonic Injection

Overview

TopologyFlyback Converter
Input voltage85-265 V
Switching frequency40-50 kHz
Output 10.35 A
IC revision1.01

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

Typical applications

  • General PFC Pre-Regulators
  • LED Lighting Driver

More information

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744841247
SPECWE-CMB NiZn Common Mode Power Line Choke, 2 A, 47 µH
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB NiZn Common Mode Power Line Choke
Rated Current2 A
Inductance47 µH
DC Resistance40 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialNiZn 
Length16 mm
Width7.5 mm
Height17.5 mm
MountTHT 
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