EE Product News

Controller IC Simplifies Implementation Of PFC In Switchers

This power factor correction (PFC) controller IC has been designed for use with power MOSFETs in electronic ballast and low power (<150W) switch mode power supplies. The FAN7527, available in SOP and 8-pin DIP packages, is a boundary conduction, current-mode controller with low start up and operating current to minimize power loss and increase efficiency. The FAN7527's integrated R/C filter eliminates the need for external components. Adjustable over-voltage protection circuitry improves turn on overshoot and current limiting characteristics. Other reliability enhancing features include no-load runaway protection and output drive clamping to limit overshoot of the power FET gate. The FAN7527 controller IC costs $0.75 each/1,000.


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