PFC + LLC Controller with THD Improvement Function
Shindengen Electric Manufacturing Co., Ltd. has developed the MCZ5213ST PFC+LLC controller with THD (Total Harmonic Distortion) improvement function. This product is equipped with a function built in to the IC which utilizes Shindengen's proprietary technologies to make it possible to maintain THD at less than 10%, which can greatly contribute to power harmonic current regulation, especially in the lighting industry. The MCZ5213ST is a control IC for PFC and LLC which allows it to be deployed in a variety of applications.
Lighting equipment must satisfy the requirements of JIS C61000-3-2 Power Harmonic Current Regulation Class C, for which reduction of THD is effective. The MCZ5213ST, developed using Shindengen's proprietary technologies, is equipped with a THD improvement function which allows for reduction of THD to less than 10%, which in turn makes it possible to more reliably clear the requirements of the relevant standards.
In addition, because the product is a control IC for power factor improvement circuits and current resonance circuits, it can also be deployed in a wide variety of applications other than lighting equipment. Major applications are expected to include: CVCC application like high power LED driver / battery charger; LBP and other document PSUs; High power audio amplifier PSUs; Flat panel display PSUs; Industrial PSUs.
Features include: Equipped with a THD improvement function suitable for lighting applications that achieves less than 10% at 50% load and less than 5% at 100% load at 240Vac; Single chip PFC/LLC controller in a SOP18 package; High efficiency and low EMI through critical conduction mode PFC control; Adjustable LLC min/max and start frequency; 600V robust gate driver; Optimizes PFC/LLC ON-OFF sequence; and 35V rating for Vcc supply.
