Power factor controller features negative capacitance technology to provide low harmonic distortion performance
The ISL6730A features a patent-pending breakthrough in negative capacitance technology which reduces EMI filter size, improves THD and PF and provides maximum efficiency over a wide input supply range and output power (input voltages from 85 VAC to 270 VAC and power range from 50 W to 2 kW). This technology also minimizes zero crossing distortion, compensates for input filter capacitance PF displacement error and reduces the magnetic component size by up to 66 percent. For example, in an 85 W power supply the EMI filter inductor can be reduced from 150 uH to 56 uH. The small external components result in a lower cost design with improved performance.
The device’s power factor correction capability is compatible with the requirements for a power factor higher than 0.9, as currently required by ENERGY STAR Program Requirements for Computers Version 5.0. The ISL6730A also achieves excellent light load efficiency using integrated skip-mode, and includes an internally clamped 12.5 V gate driver delivering 1.5 A peak current to the external power MOSFET.
The ISL6730A enables a reliable system that is fully protected with features such as cycle-by-cycle over-current, power limiter, over-temperature, input brownout, output over-voltage and under-voltage protection.
Availability and Pricing
The ISL6730A is available now in compact 10-lead MSOP package, with prices starting at $0.95 each in 1,000-unit quantities.
More information about the ISL6730A power factor controller at
www.intersil.com/content/intersil/en/products/power-management/isolated-power/pfc-controllers/ISL6730A.html
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