OB3306 PDF – LCD Monitor Backlight Inverter Controller

Part Number: OB3306

Function: High Integrated LCD Monitor Backlight Inverter Controller

Package: SOP 16 Pin Type

Manufacturer: GreenEngine

Images:OB3306 pdf controller


OB3306 is a high integrated and high performance Cold Cathode Fluorescent Lamp (CCFL) controller optimized for LCD monitor backlight application. It integrates high precision (2%) 4 channels of current and 1 channel of voltage feedback control, and thus provides a low-cost and high reliability LCD backlight solution with minimum system BOM count. OB3306 controls push pull topology and supports various dimming functions and comprehensive protections.


1. Minimal required external components

2. Push pull topology

3. High precision reference and frequency control

4. External programmability of the key parameters

5. Flexible Dimming mode Control

(1) Analog dimming control
(2) Internal burst dimming control
(3) External burst (LPWM) dimming control
(4) 0-2V DC voltage direct dimming control without external circuits
(5) Dimming range programmable (Max.: 100%~0%)

7. Comprehensive Protection Coverage:
(1) Output over voltage protection (OVP)
(2) Output over current proteciton (OCP)
(3) Open lamp protetion and short lamp protection
(4) Arcing protection


LCD CCFL backlight system in

(1) LCD monitor […]


OB3306 PDF Datasheet