FAN7311N Overview
The FAN7311 provides all the co ntrol fu nctions for a series p arallel resonant co nverter as well as a pu lse width m odulation (PWM) controller t o d evelop a s upply voltage. T ypical op erating fre quency ran ge is bet ween 30kHz and 250kHz, depending on the cold cathode fluorescent lamp (CCFL) and the transformer's characteristics. FAN7311 uses a new proprietary phase-shift control.
FAN7311N Key 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 ponents
- 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