OB3309中文资料High Integrated U-Type CCFL Backlight Driver数据手册OB规格书

描述 Description

OB3309 is a high integrated and high performance U-type Cold Cathode Fluorescent Lamp (CCFL) controller optimized for LCD monitor backlight application. Comprehensive protection functions are integrated, thus it provides a low-cost and high reliability LCD backlight solution with minimum system BOM count. OB3309 controls push pull topology and supports various dimming functions.

特性 Features

· Minimal required external components
· Push pull topology
· High precision reference and frequency control
· External programmability of the key parameters
· Flexible Dimming mode Control:
· Selective dimming polarity
· Analog, internal burst and external burst (LPWM) dimming control
· 0-2V DC voltage or external PWM direct dimming control without external circuits
· Dimming range programmable (100 ~0 )
· Comprehensive protection coverage:
· Output over voltage protection (OVP)
· Output over current protection (OCP)
· Open lamp protection and short lamp protection
· Arcing protection
· Available in SOP16 package, RoHS compliant

应用 Application

LCD CCFL backlight system in
· LCD Monitor/TV


Typical Application: