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AL9901

Part Number	AL9901
Manufacturer	Diodes
Description	UNIVERSAL HIGH VOLTAGE LED DRIVER
Published	Aug 6, 2015
Detailed Description	AL9901 UNIVERSAL HIGH VOLTAGE LED DRIVER Description The AL9901, high-voltage PWM LED driver provides an efficient solu...
Datasheet	AL9901 PDF File

Overview

AL9901 UNIVERSAL HIGH VOLTAGE LED DRIVER Description The AL9901, high-voltage PWM LED driver provides an efficient solution for offline, high-brightness LED lamps for rectified line voltages ranging from 85VAC up to 305VAC.
The AL9901 has an internal MOSFET that allows switching frequencies up to 300kHz, with the switching frequency determined by an external single resistor.
The AL9901 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 AL9901’s LD and PWM pins respectively.
The PWM input operates with a duty ratio of 0-100% ...

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