Product introduction | MT765X: flicker-free, linear PWM dimming solution

As market required, Maxic launched the new generation low cost, high performance, flicker-free, linear PWM smart dimming products: MT7651L/H and MT7652L/H. In order to meet the requirements of EU’s new ERP standard, Maxic took the lead in launching the linear PWM smart dimming products: MT7656L/H and MT7658L/H.

 Product Selection 

 Features 

• Ultra-low power consumption

           Single channel: <5mW@120Vac，，
，
，<10mW@230Vac

           Dual-channel: <10mW@120Vac，，，，<20mW@230Vac

• Low to 1% dimming depth and 0.1% dimming resolution

• 1%-100% PWM dimming, no flicker across the full range

• <10KHz PWM frequency

• High constant current accuracy (100% Duty，，，<±3%)

• High constant current accuracy at low end (3% Duty，，<±5%)

• >750V (no fuse) anti-surge capability

• MT7656H and MT7658H: PF>0.7, no flicker, meets the THD requirement of new EU’s standard

• Excellent EMI performance with low BOM cost
  

 Typical scheme 

Schematic diagram

Performance

THD：IIN波形curve：

The input current shall be such that it reaches the 5% current threshold before or at 60o, has its peak value before or at 65o and does not fall below the 5% current threshold before 90°.

CH1(yellow)：Vin，
，CH2(blue)：Vcap ，，，CH4(green)：Iin 230Vac

Dimming curve

EMI Performance

230Vac  L

230Vac  N

230Vac  CDN