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IC manufacturers Monolithic Power Systems

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reference designMP4032-1

Monolithic Power Systems MP4032-1

Primary-Side-Controlled, Offline LED Driver with Fully-Integrated Internal MOSFET

Overview

TopologyFlyback Converter
Input voltage108-132 V
Output 118 V / 0.35 A
IC revision1.02

Description

The MP4032-1 is a TRIAC-dimmable, primaryside-controlled, offline, LED lighting driver with an integrated 500V MOSFET. It can achieve a high power factor and accurate LED current control for lighting applications in a single-stage converter. The proprietary real-current control can accurately control the secondary-side LED current using primary-side information. Itsimplifies LED lighting systems and increases efficiency by removing the secondary feedback components and the current-sensing resistor.

The MP4032-1 has a power-factor-correction function and works in boundary-conduction mode that reduces power losses. The DRAIN pin can supply current to the internal charging circuit for start-up without a perceptible delay. The proprietary dimming control extends the TRIAC-based dimming range.

The multiple protections greatly enhance system reliability and safety. These protections include VCC under-voltage lockout, LED overvoltage and over-current protections, shortcircuit protection, and over-temperatureprotection.

The MP4032-1 is available in an SOIC8-7A package.

Features

  • Real Current Control without Secondary Feedback Circuit
  • Internal MOSFET with 500V High Voltage Rating
  • Less than 6W Output Power
  • Internal Charging Circuit for Fast Start-Up
  • Accurate Line Regulation
  • Flicker-Free, Phase-Controlled TRIAC Dimming with Extended Dimming Range
  • High Power Factor
  • Boundary-Conduction Mode
  • VCC UVLO
  • Cycle-by-Cycle Current Limiting
  • Over-Voltage Protection
  • Short-Circuit Protection
  • Over-Temperature Protection
  • Available in SOIC8-7A Package

Remarks

  • L1=L2=4.7mH,L3=2.2mH,L4=1000mH and Lp=2.596mH are used Refer Page no-18,Figure-12

Typical applications

  • Solid-State Lighting
  • Industrial and Commercial Lighting
  • Residential Lighting

More information

Products

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Data­sheet
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Status
Product series
L(µH)
IR(A)
ISAT,10%(A)
fres(MHz)
Version
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(mΩ)
Type
SamplesAvailability & Sample
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7447720222
SPECWE-TI Radial Leaded Wire Wound Inductor, 2200 µH, 0.29 A
Simu­lation
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance2200 µH
Rated Current0.29 A
Saturation Current @ 10%0.35 A
Self Resonant Frequency1.1 MHz
VersionStandard 
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–
–
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DC Resistance4730 mΩ
–
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742792097
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, 0.7 A
Simu­lation
Availability
–
Downloads8 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 8 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
–
Rated Current0.7 A
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–
VersionSMT 
Impedance @ 100 MHz1500 Ω
Maximum Impedance1800 Ω
Maximum Impedance70 MHz 
Rated Current 21000 mA
DC Resistance300 mΩ
TypeHigh Current 
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