International Rectifier has introduced the IRS2500S μPFC power factor correction (PFC) control IC for switch mode power supply (SMPS), LED drivers, fluorescent and HID electronic ballast applications. The chip can be configured to operate in critical conduction boost PFC or flyback configuration. It also features high noise immunity and a total harmonic distortion (THD) optimisation circuit to reduce line current harmonics.
Available in an SO-8 package, the IRS2500S also features startup current of less than 50 μA, quiescent current of 2,5 mA, drive capability of +800 mA/-600 mA as well as static and dynamic over-voltage protection and over-current protection. The short minimum on-time of the device allows wide input range power factor correction for universal input operation.
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