The FAN7527BN is a simple and high-performance active Power Factor Correction (PFC) Controller for electronic ballast. The FAN7527B is optimized for electronic ballasts and low-power, high-density power supplies that require minimum board size, reduced external components and low power dissipation, because the R/C filter is included in the current-sense block, an external R/C filter is not necessary. Special circuitry prevents no-load runaway conditions. Regardless of the supply voltage, the output drive clamping circuit limits the overshoot of the power MOSFET gate drive, which improves system reliability.
● Internal start-up timer
● Internal R/C filter eliminates the need for external R/C filter
● Precise adjustable output overvoltage protection
● Zero current detector
● One quadrant multiplier
● Trimmed 1.5% internal band gap reference
● Under-voltage lockout with 3V of hysteresis
● Totem-pole output with high-state clamp
● Low start-up and operating current
