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AL9902

Part Number	AL9902
Manufacturer	Diodes
Description	LINEAR AND PWM DIMMING HIGH VOLTAGE LED DRIVER
Published	Aug 6, 2015
Detailed Description	AL9902 LINEAR AND PWM DIMMING HIGH VOLTAGE LED DRIVER Description The AL9902 high-voltage PWM LED driver provides an ef...
Datasheet	AL9902 PDF File

Overview

...ficient solution for offline high-brightness LED lamps from rectified line voltages ranging from 85VAC up to 277VAC.
The AL9902 has an internal MOSFET that allows switching frequencies up to 300kHz, with the switching frequency determined by an external single resistor.
The AL9902 topology creates a constant current through the LEDs providing constant light output.
The output current is programmed by one external resistor.
The LED brightness can be varied by both linear and PWM dimming using the AL9902’s LD and PWM pins respectively.
The PWM input operates with duty ratio of 0-100% and frequency of up to several kHz.
The AL9902 is available in the thermally enhanced U-DFN6040-12 and SO-16 pa...

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