| Topologie | Leistungsfaktor-Korrektur |
| Eingangsspannung | 85-265 V |
| Ausgang 1 | 50 V / 0.3 A |
| IC-Revision | 1.05 |
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.
Remarks;Inductor L1=4mH , L5=300uH ,L2=L3=L4=1mHAnd Transformer T1=0.918mH UsedRefer page no. 2