●Description
●The FAN7527 provides simple and high performance active power factor correction. FAN7527 is optimized for electronic ballast and low power, high density power supplies which require minimum board area reduced component count and low power dissipation. Internal R/C filter eliminates the need for an external R/C filter. Internally clamping the error amplifier and multiplier outputs, improves turn on overshoot characteristics and current limiting. Special circuitry has also been added to prevent no load runaway conditions. Independent of supply voltage, the output drive clamping circuit limits overshoot of the power MOSFET gate drive. This greatly enhances the system reliability.
●Features
●• Internal Startup Timer
●• Internal R/C filter eliminates the Need for an External R/C filter
●• Very Precise Adjustable Output Over Voltage Protection
●• Zero Current Detector
●• One Quadrant Multiplier
●• Trimmed 1.5% Internal Bandgap Reference
●• Under Voltage Lock Out with 3V of Hysteresis
●• Totem Pole Output with High State Clamp
●• Low Startup and Operating Current
●• 8-Pin DIP or 8-Pin SOP
●Applications
●• Electronic Ballast
●•SMPS
