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WS2801

Part Number	WS2801
Manufacturer	Worldsemi
Description	3-Channel Constant Current LED Driver
Published	May 25, 2014
Detailed Description	Preliminary WS2801 3-Channel C onstant Current LED Driver With Programmable PWM Outputs 　 Features 　 Applications • Supp...
Datasheet	WS2801 PDF File

Overview

Preliminary WS2801 3-Channel C onstant Current LED Driver With Programmable PWM Outputs 　 Features 　 Applications • Supports both constant voltage and constant current drive mode • Programmable constant LED drive current • Wide constant output current range 5~150mA • Build in PWM dimming scheme for each output channel, supports free-run, especially suitable for low cost controller application • PWM free-run capability(refresh rate(2.
5KHz) • Build in buffers to cascading data and clock to the next driver • Output polarity reverse function • Support hot swap • Maximum input clock frequency 25MHz • Power supply voltage 3.
3~5.
5V • LED decorative lighting • Indoor/Outdoor LED video or massage display • PWM signal generator • LCD TV back lighting 　 General Description The WS2801 is a constant current LED driver.
It is designed for indoor/ outdoor LED displays and decorative LED lighting system.
It is suitable for LED cascading applications.
The WS2801ownes 3 output channels, each channel ...

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