FAN7311M

LCD背光逆变器驱动IC LCD Backlight Inverter Drive IC

Description

The FAN7311 provides all the control functions for a series parallel resonant converter as well as a pulse width modulation PWM controller to develop a supply voltage. Typical operating frequency range is between 30kHz and 250kHz, depending on the cold cathode fluorescent lamp CCFL and the transformer"s characteristics. FAN7311 uses a new patented phase-shift control.

Features

„High-Efficiency Single-Stage Power Conversion

„Wide Input Voltage Range: 5V to 25.5V

„Backlight Lamp Ballast and Soft Dimming

„Reduced Number of Required External Components

„Precision Voltage Reference Trimmed to 2%

„ZVS Full-Bridge Topology

„Soft-Start Capability

„PWM Control at Fixed Frequency

„Analog and Burst Dimming Function

„Programmable Striking Frequency

„Open-Lamp Protection

„Open-Lamp Regulation

„20-Pin SSOP/SOIC/DIP

Applications

„LCD TV

„LCD Monitor