OB3380中文资料Universal High Brightness LED Driver数据手册OB规格书

描述 Description

OB3380 is a current mode PWM control IC for LED lighting application that operates in constant off-time mode. It integrates a 20V~500VDC linear regulator which allows it to work from a wide range of input voltages without the need for an external low voltage supply. The OB3380 supports linear mode dimming with 0V~0.5V variational DC voltage input. The OB3380 integrates damper driver for flickless TRIAC mode dimming. It requires only two components (apart from the power stage) to produce a controlled LED current, making it an LED lighting solution for small form factor designs.

特性 Features

·20V~500V DC wide range input
·Support high PF(>0.9) application
·Flicker free dimming with TRIAC control
·Support No E-cap design
·High efficiency buck topology
·Constant off-time operation
·Non-isolation design with few external components
·Open loop operation without compensation components
·Available in SOP8 packages, RoHS compliant

应用 Application

·DC/DC or AC/DC LED lighting applications
·RGB backlighting LED driver
·Backlighting of flat panel displays
·Signage and decorative LED lighting
·Dimmable LED luminaries