Description

FAN7313 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.

Features

„High-Efficiency Single-Stage Power Conversion

„Wide Input Voltage Range: 4.5V to 25.5V

„Backlight Lamp Ballast and Soft Dimming

„Reduces Required External Components

„Precision Voltage Reference Trimmed to 2

„Push-Pull Topology

„Soft-Start Capability

„PWM Control at Fixed Frequency

„Analog and Burst Dimming Functions

„Open-Lamp Protection

„Open-Lamp Regulation

„Over-Voltage Protection

„Short-Circuit Protection

„20-Pin SOIC

Applications

„LCD TV

„LCD Monitor