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Description

The AL9910/A high voltage PWM LED driver-controller provides an efficient solution for offline high brightness LED lamps from rectified line voltages ranging from 85VAC up 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 AL9910’s LD and PWM_D pins respectively. The PWM_D input operates with duty ratio of 0-100% 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. As well as standard SO-8 package the AL9910 is available in the thermally enhanced SO-8EP package.

Application

  • DC/DC or AC/DC LED Driver application
  • RGB Backlighting LED Driver
  • Back Lighting of Flat Panel Displays
  • General purpose constant current source
  • Signage and Decorative LED Lighting

Features

  • >90% Efficiency
  • Universal rectified 85 to 277VAC input range
  • Input voltage surge ratings up to 500V
  • Internal voltage regulator removes start-up resistor o 7.5V MOSFET drive – AL9910 o 10V MOSFET drive – AL9910A
  • Constant-current LED driver
  • Applications from a few mA to more than 1A Output
  • PWM Low-Frequency Dimming via Enable pin
  • Internal Thermal Protection (OTP)
  • SO-8 and SO-8EP in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/ RoHS Compliant

Product Specifications

Product Parameters

Minimum Input AC Voltage (VAC) 85
Maximum Input AC Voltage (VAC) 277
Maximum DC VDD (VDC) 500
LED Current (mA) External MOSFET
Frequency (kHz) 100
Accuracy 10 %
Efficiency 90 %
Dimming PWM to DC
Supply Current 0.5 mA
Temperature Range -40 to 85, -40 to 105 °C

Related Content

Packages
SO-8
SO-8EP

Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AL9910-5S-13 Digi-Key Electronics 2500 10/19/2019 Buy Now United States
AL9910-5S-13 Mouser Electronics Inc. 5000 10/19/2019 Buy Now United States
AL9910-5S-13 Future Electronics 20000 10/18/2019 Buy Now Canada
AL9910-5S-13 RS Components 1935 10/18/2019 Buy Now England
AL9910-5S-13 RS Components Ltd. 1935 10/18/2019 Buy Now Japan
AL9910-5SP-13 Mouser Electronics Inc. 3259 10/19/2019 Buy Now United States
AL9910-5SP-13 Future Electronics - Europe 2500 10/18/2019 England
AL9910-5SP-13 RS Components 2000 10/18/2019 Buy Now England
AL9910-5SP-13 RS Components Ltd. 2000 10/18/2019 Buy Now Japan
AL9910A-5S-13 Digi-Key Electronics 2453 10/19/2019 Buy Now United States
AL9910A-5S-13 Mouser Electronics Inc. 2324 10/19/2019 Buy Now United States
AL9910A-5SP-13 Digi-Key Electronics 936 10/19/2019 Buy Now United States
AL9910AEV2 Digi-Key Electronics 1 10/19/2019 Buy Now United States
AL9910AS-13 Arrow Electronics 425 10/19/2019 Buy Now United States
AL9910AS-13 Digi-Key Electronics 108 10/19/2019 Buy Now United States
AL9910AS-13 Farnell, An Avnet Company 2671 10/19/2019 Buy Now England
AL9910AS-13 Mouser Electronics Inc. 1308 10/19/2019 Buy Now United States
AL9910AS-13 RS Components 245 10/18/2019 Buy Now England
AL9910AS-13 RS Components Ltd. 245 10/18/2019 Buy Now Japan
AL9910ASP-13 Arrow Electronics 750 10/19/2019 Buy Now United States
AL9910ASP-13 Arrow Electronics 3005 10/19/2019 Buy Now United States
AL9910ASP-13 Digi-Key Electronics 1471 10/19/2019 Buy Now United States
AL9910ASP-13 Mouser Electronics Inc. 1870 10/19/2019 Buy Now United States
AL9910ASP-13 RS Components 82 10/18/2019 Buy Now England
AL9910ASP-13 RS Components Ltd. 38 10/18/2019 Buy Now Japan
AL9910S-13 Farnell, An Avnet Company 5 10/19/2019 Buy Now England
AL9910S-13 Mouser Electronics Inc. 4565 10/19/2019 Buy Now United States
AL9910S-13 RS Components 2508 10/18/2019 Buy Now England
AL9910S-13 RS Components Ltd. 2508 10/18/2019 Buy Now Japan
AL9910S-13 Rutronik GmbH 15000 10/17/2019 Buy Now Germany
AL9910SP-13 Digi-Key Electronics 7289 10/19/2019 Buy Now United States
AL9910SP-13 Mouser Electronics Inc. 2325 10/19/2019 Buy Now United States