IC reference design search
IC manufacturers Monolithic Power Systems

IC manufacturers (104)

reference designMP4021A

Monolithic Power Systems MP4021A

Primary Side Control Offline LED Controller with Active PFC

Overview

TopologyFlyback Converter
Input voltage85-265 V
Output 150 V / 0.3 A
IC revision1.05

Description

The MP4021A is a primary-side–control offline LED lighting controller that achieves high power factor and accurate LED current for isolated single-power-stage lighting applications in a single SOIC8 package. The proprietary real-current control method accurately controls LED current from primary-side information. Eliminating the secondary-side feedback components and the optocoupler significantly simplifies the LED lighting system design.

The MP4021A 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 lighting applications.

The multi-protection features of MP4021A greatly enhance system reliability and safety. The MP4021A features over-voltage protection, short-circuit protection, cycle-by-cycle current limiting, VCC UVLO, and auto-restart over-temperature protection.

Features

  • Real current control without secondaryfeedback circuit
  • Typical ±1.5% load regulation
  • Unique architecture for superior line regulation
  • High power factor≥0.9 over universal input voltage
  • Boundary conduction mode improves efficiency
  • Ultra-low (20µA) start-up current
  • Low (1mA) quiescent current
  • Input UVLO
  • Cycle-by-cycle current limit
  • Over-voltage protection
  • Short-circuit protection
  • Over-temperature protection
  • Available in an SOIC8 package

Remarks

L1=10mH,L2=L3=L4=1.5mH,L=1.45mH are used

Typical applications

  • Residential lighting
  • Solid-state lighting
  • Industrial and commercial lighting

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
Version
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
744743102
SPECWE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.42 A
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance1000 µH
Rated Current0.42 A
Saturation Current @ 10%0.69 A
DC Resistance2.5 Ω
Self Resonant Frequency1.6 MHz
VersionStandard 
–Check availability