Diodes AL9910/ AL9910A/ AL9910-5/ AL9910A-5 Manuel d'utilisateur télécharger pdf (Page 1)

AL9910/ AL9910A/ AL9910-5/ AL9910-5A

Document number: DS35103 Rev. 9 - 2

1 of 15

www.diodes.com

May 2014

L9910/ AL9910A/ AL9910-5/

L9910A-5

UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER

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 85V

up to 277V

. 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.

Features

• >90% Efficiency

• Universal Rectified 85 to 277V

Input Range

• Input Voltage Up to 500V

• Internal Voltage Regulator Removes Start-Up Resistor

 7.5V MOSFET Drive – AL9910

 10V MOSFET Drive – AL9910A

• Tighter Current Sense Tolerance: 5% AL9910-5, AL9910A-5

• Drives LED Lamps with Both High and Low Current LEDs

• LED Brightness Control with Linear and PWM Dimming

• Internal Thermal Protection (OTP)

• Available in SO-8 and SO-8EP Packages

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

Pin Assignments

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. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

PWM_D

OSC

GATE

GND

(Top View)

SO-8

AL9910

PWM_D

OSC

GATE

GND

(Top View)

SO-8EP

AL9910

1 2 3 4 5 6 ... 14 15

Résumé du contenu

AL9910/ AL9910A/ AL9910-5/ AL9910-5A Document number: DS35103 Rev. 9 - 2 1 of 15 www.diodes.com May 2014© Diodes Incorporated AL9910/ AL9910A/ AL9

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Page 5 - CURRENT SENSE THRESHOLD (mV)

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Page 6 - POWER FACTO

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Page 7 - Design Parameters

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Page 10 - AL9910/A

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Page 13 - Detail ‘A’

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Naviguer en ligne ou télécharger Manuel d'utilisateur pour Matériel Diodes AL9910/ AL9910A/ AL9910-5/ AL9910A-5. Diodes AL9910/ AL9910A/ AL9910-5/ AL9910A-5 User Manual [en] Manuel d'utilisatio

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Naviguer en ligne ou télécharger Manuel d'utilisateur pour Matériel Diodes AL9910/ AL9910A/ AL9910-5/ AL9910A-5. Diodes AL9910/ AL9910A/ AL9910-5/ AL9910A-5 User Manual [en] Manuel d'utilisatio

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