FAN7711 Datasheet, PDF (1/23 Pages) Fairchild Semiconductor – Ballast Control IC

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
Applications
„ Electronic Ballast
March 2007
Description
The FAN7711, developed using Fairchild’s unique high-
voltage process, is a ballast control integrated circuit (IC)
for a fluorescent lamp. FAN7711 incorporates a
preheating / ignition function, controlled by an user-
selected 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.
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