Description

The FAN7315 provides all the control functions for a series parallel resonant converter and also contains a pulse width modulation (PWM) controller to develop a supply voltage. Typical operating frequency range is between 30kHz and 250kHz depending on the CCFL and the transformers characteristics.

Features

• Wide Dimming Range

Analog dimming ( 2.5 : 1 )

Burst dimming ( >100 : 1 )

• High Efficiency Single Stage Power Conversion

• Wide Input Voltage Range 7.4V to 20V

• Back Light Lamp Ballast and Soft Dimming

• Few External Components

• Precision Voltage Reference Trimmed to 2

• ZVS full-bridge topology

• Soft Start

• PWM Control at fixed frequency

• Analog, Burst Dimming Function

• Open Lamp Protection

• Open Lamp Regulation

• Short Lamp Protection

• Thermal Protection

• 20 Pin SSOP