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IC manufacturers Monolithic Power Systems

IC manufacturers (84)

Monolithic Power Systems EV4021A-S-00T

Universal input, 15W Primary-side-control with Active PFC T8 Isolated LED Driver Evaluation Board


TopologyPower Factor Correction
Input voltage85-265 V
Output 150 V / 0.3 A
IC revision1.05


The EV4021A-S-00T Evaluation Board is designed for driving a nominal LED string voltage of 50V at 0.3A from universal input (85VAC-265VAC). The LED driver uses the MP4021A.

The MP4021A is a primary-side-control offline LED lighting controller which can achieve high power factor and accurate LED current for anisolate lighting application in a single stage converter. It works in boundary conduction mode for reducing the MOSFET and Diodeswitching losses.

The EV4021A-S-00T has a low profile and high efficiency, and meets IEC61547 surge immunity, IEC61000-3-2 Class C harmonics andEN55015 conducted EMI requirements. It has multi-protection function such as over-voltage protection, short-circuit protection, cycle bycycle current limit, etc.


  • Low profile design, <10mm component height
  • Unique architecture for superior line regulation
  • High power factor>0.9 over universal input voltage
  • Boundary conduction mode improves efficiency
  • Input UVLO
  • Cycle-by-cycle current limit
  • Over-voltage protection (OVP)
  • Short-circuit protection (SCP)
  • Over-temperature protection (OTP)
  • Fit inside T8 tube enclosure

Remarks;Inductor L1=4mH , L5=300uH ,L2=L3=L4=1mHAnd Transformer T1=0.918mH UsedRefer page no. 2

Typical applications

  • Solid State Lighting
  • Industrial & Commercial Lighting
  • Residential Lighting
  • T8 Tube Replacement