FAN7711

FAN7711 Ballast Control IC March 2007 FAN7711 Ballast Control IC Features „ Floating Channel for Bootstrap Operation to +600V „ Low Start-up and Operating Current: 120μA, 3.2mA „ Under-Voltage Lockout with 1.8V of Hysteresis „ Adjustable Run Frequency and Preheat Time „ Internal Active ZVS Control „ Internal Protection Function (Latch Mode) „ Internal Clamping Zener Diode „ High Accuracy Oscillator „ Soft-Start Functionality Description The FAN7711, developed using Fairchild’s unique highvoltage process, is a ballast control integrated circuit (IC) for a fluorescent lamp. FAN7711 incorporates a preheating / ignition function, controlled by an userselected external capacitor, to increase lamp life. The FAN7711 detects switch operation from after ignition mode through an internal active Zero-Voltage Switching (ZVS) control circuit. This control scheme enables the FAN7711 to detect an open-lamp condition, without the expense of external circuitry, and prevents stress on MOSFETs. The high-side driver built into the FAN7711 has a common-mode noise cancellation circuit that provides robust operation against high-dv/dt noise intrusion. Applications „ Electronic Ballast www.DataSheet4U.com 8-SOP 8-DIP Ordering Information Part Number FAN7711N FAN7711M FAN7711MX Package 8-DIP 8-SOP Pb-Free Yes Operating Temperature Range -25°C ~ 125°C Packing Method Tube Tube Tape & Reel © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.2 www.fairchildsemi.com FAN7711 Ballast C...