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AL9910SP-13 Datasheet(PDF) 1 Page - Diodes Incorporated |
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AL9910SP-13 Datasheet(HTML) 1 Page - Diodes Incorporated |
1 / 15 page AL9910/AL9910A/AL9910-5 UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER AL9910/AL9910A/AL9910-5 Document number: DS 35103 Rev. 3 - 2 1 of 15 www.diodes.com June 2011 © Diodes Incorporated 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. Pin Assignments SO-8 1 2 3 45 6 7 8 (Top View) CS Gate GND LD VIN Rosc VDD PWM_D AL9910 SO8-EP 1 2 3 45 6 7 8 (Top View) CS Gate GND LD VIN Rosc VDD PWM_D AL9910 Features • >90% Efficiency • Universal rectified 85 to 277VAC input range • Input voltage up to 500V • Internal voltage regulator removes start-up resistor o 7.5V MOSFET drive – AL9910 o 10V MOSFET drive – AL9910A • Tighter current sense tolerance: 5% AL9910-5 • Drives LED Lamps with both high and low current LEDs • LED brightness control with Linear and PWM dimming • Internal Thermal Protection (OTP) • SO-8 and SO-8EP in “Green” Molding Compound • (No Br, Sb) with Lead Free Finish/ RoHS Compliant (Note 1) Applications • LED offline lamps • High voltage dc-dc LED Driver • Signage and Decorative LED Lighting • Back Lighting of Flat Panel Displays • General purpose constant current source Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. Typical Application Circuit R SENSE AL9910/A GATE CS LD PWM_D GND R OSC V DD V IN V AC IN Q1 L1 D1 C1 R OSC C2 C3 BR1 R SENSE AL9910/A GATE CS LD PWM_D GND R OSC V DD V IN V AC IN Q1 L1 D1 C1 R OSC C2 C3 BR1 |
Similar Part No. - AL9910SP-13 |
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Similar Description - AL9910SP-13 |
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