Site Location

ISO9001:2008
AS9100:2009
CERTIFIED
COMPANY

EMPLOYEE
OWNED
COMPANY

 

Latest Park Blogs

   
  LED Driver with Square Law Dimming Control
 
   
DEI1090 Datasheet

Get Acrobat Reader
Data Sheets can be viewed with Adobe Acrobat Readerâ„¢

Features:
  • Emulates incandescent lamp ‘Square Law’ luminance curve.
  • LED dimming controlled by Pulse Width Modulation ranging from 50HZ to 200HZ.
  • LED current adjustable from 10mA to 20mA.
  • 200:1 Dimming Range at 50Hz. 40:1 Dimming Range at 200Hz
  • Drives 8 LED outputs with matched current drive.
  • Drivers can be cascaded to synchronously drive additional LEDs.
  • Plastic 16 lead SOIC package.
 
       
   

GENERAL DESCRIPTION
The DEI1090 device is a 16 pin bipolar integrated circuit designed to drive nine LEDs and provide Pulse Width Modulated (PWM) dimming control according to the luminance curve of incandescent lamps. The device squares the analog control input and produces a PWM waveform used to enable or disable the current outputs. The LED brightness is controlled by the PWM duty cycle. All nine LEDs are driven at the same adjustable drive current. Drivers can be cascaded to synchronously drive additional LED groups. The dimming control input may be a DC or AC voltage.

 
   

DEI1090 BLOCK DIAGRAM

 
     
  © 2011-2017  Device Engineering  All rights reserved  

Our Services

Our Testimonials

Contact Us

Device Engineering Incorporated
385 East Alamo Drive
Chandler AZ 85225

P: 480-303-0822

F: 480-303-0824

www.deiaz.com