器件名称: FAN7711_07
功能描述: Ballast Control Integrated Circuit
文件大小: 1438.92KB 共21页
简 介:FAN7711 — Ballast Control Integrated Circuit
May 2007
FAN7711 Ballast Control Integrated Circuit
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 with 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 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 commonmode noise cancellation circuit that provides robust operation against high-dv/dt noise intrusion. 8-SOP 8-DIP
Applications
Electronic Ballast
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
Typical Application
D5 R1 U1 D1 D2 D6 R3
VDD
C1
Main Supply
1 2 FAN7711 3 4
8 7 6 5
VB HO VS LO
R5 ……