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Led Driver, 1 Output, Buck (Step Down), 20V-500V in, 300kHz switch, SOIC-8


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Technical Datasheet:
AL9910AS-13   Datasheet
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Non Isolated Buck







Surface Mount








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Technical Documents (2)

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Product Overview

The AL9910AS-13 is a high voltage PWM LED Driver Controller provides an efficient solution for offline high brightness LED lamps from rectified line voltages ranging from 85 to 277VAC. The AL9910 drives external MOSFETs at switching frequencies up to 300kHz, with the switching frequency determined by a single resistor. The AL9910 topology creates a constant current through the LEDs providing constant light output. The output current is programmed by one external resistor and is ultimately determined by the external MOSFET chosen and therefore allows many low current LEDs to be driven as well as a few high current LEDs. The LED brightness can be varied by both Linear and PWM dimming using the AL9910s LD and PWM_D pins respectively. The PWM_D input operates with duty ratio of 0 to 100% and frequency of up to several kHz. The AL9910 can withstand input voltages up to 500V which makes it very resilient to transients at standard mains voltages.
  • Drives LED lamps with both high and low current LEDs
  • LED brightness control with linear and PWM dimming
  • Internal thermal protection
  • >90% Efficiency
  • 5% Tighter current sense tolerance


LED Lighting, Industrial, Imaging, Video & Vision


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