D8553DF TO-255 固态继电器 PWM IC 45W

  The D8553DF integrated a current mode PWM controller and a high voltage power MOSFET, which is applied to power less than 30W. D8553DF operates in the fixed frequency at heavy load and operates in Green Mode at no load or light load.Slope compensation circuit is integrated in D8553DF, which improves system large signal stability and reduces the possible sub-harmonic oscillation at high PWM duty cycle. Leading-edge blanking on current sense input eliminates the signal glitch due to snubber circuit diode reverse recovery current. Frequency Shuffling technique is integrated in D8553DF, which helps to achieve excellent EMI performance. D8553DF offers complete protection functions with autorecovery including cycle-by-cycle current limiting protection (OCP), over load protection (OLP), VDD over voltage protection(OVP), VDD over voltage clamp and under voltage lockout (UVLO). Driven by internal totem pole can improve the EMI characteristics of the system and the soft start control of the switch. D8553DF is offered in TO-255 Pb-free package