OB3309数据手册OB中文资料规格书

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

应用 Application

LCD CCFL backlight system in \r
· LCD Monitor/TV\r
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Typical Application: