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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 Arrow Electronics Central EU 22500 7/2/2020 Buy Now Germany
AL9910-5S-13 Mouser Electronics Inc. 2237 7/2/2020 Buy Now United States
AL9910-5S-13 Digi-Key Electronics 2345 7/1/2020 Buy Now United States
AL9910-5S-13 RS Components 1875 7/1/2020 Buy Now England
AL9910-5S-13 RS Components Ltd. 1875 7/1/2020 Buy Now Japan
AL9910-5SP-13 Arrow Electronics Central EU 2500 7/2/2020 Buy Now Germany
AL9910-5SP-13 Mouser Electronics Inc. 3124 7/2/2020 Buy Now United States
AL9910-5SP-13 RS Components 1980 7/1/2020 Buy Now England
AL9910-5SP-13 RS Components Ltd. 1980 7/1/2020 Buy Now Japan
AL9910A-5S-13 Mouser Electronics Inc. 2302 7/2/2020 Buy Now United States
AL9910A-5S-13 Digi-Key Electronics 2453 7/1/2020 Buy Now United States
AL9910A-5SP-13 Arrow Electronics Central EU 2500 7/2/2020 Buy Now Germany
AL9910A-5SP-13 Mouser Electronics Inc. 2483 7/2/2020 Buy Now United States
AL9910A-5SP-13 Digi-Key Electronics 3389 7/1/2020 Buy Now United States
AL9910AEV2 Digi-Key Electronics 1 7/1/2020 Buy Now United States
AL9910AS-13 Arrow Electronics 422 7/2/2020 Buy Now United States
AL9910AS-13 Mouser Electronics Inc. 3663 7/2/2020 Buy Now United States
AL9910AS-13 Digi-Key Electronics 79 7/1/2020 Buy Now United States
AL9910AS-13 Farnell, An Avnet Company 2578 7/1/2020 Buy Now England
AL9910AS-13 RS Components 245 7/1/2020 Buy Now England
AL9910AS-13 RS Components Ltd. 245 7/1/2020 Buy Now Japan
AL9910ASP-13 Arrow Electronics 695 7/2/2020 Buy Now United States
AL9910ASP-13 Arrow Electronics 3005 7/2/2020 Buy Now United States
AL9910ASP-13 Arrow Electronics Central EU 2500 7/2/2020 Buy Now Germany
AL9910ASP-13 Mouser Electronics Inc. 2552 7/2/2020 Buy Now United States
AL9910ASP-13 Digi-Key Electronics 1216 7/1/2020 Buy Now United States
AL9910ASP-13 RS Components 82 7/1/2020 Buy Now England
AL9910ASP-13 RS Components Ltd. 38 7/1/2020 Buy Now Japan
AL9910S-13 Arrow Electronics Central EU 2500 7/2/2020 Buy Now Germany
AL9910S-13 Mouser Electronics Inc. 4533 7/2/2020 Buy Now United States
AL9910S-13 RS Components 2505 7/1/2020 Buy Now England
AL9910S-13 RS Components Ltd. 2505 7/1/2020 Buy Now Japan
AL9910SP-13 Mouser Electronics Inc. 2325 7/2/2020 Buy Now United States
AL9910SP-13 Digi-Key Electronics 8196 7/1/2020 Buy Now United States