General Description AS1109 designed drive LEDs through fast seria

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General Description AS1109 designed drive LEDs through fast seria

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General Description
AS1109 designed drive LEDs through fast serial interface features output constant current drivers on-chip diagnostic readback function. high clock-frequency 30MHz), adjustable output current, flexible serial interface makes device perfectly suited high-volume transmission applications. Output current adjustable 100mA/channel) using external resistor (REXT). serial interface includes integrated shift register with Schmitt trigger inputs allows display data shifted-in. Additionally, internal data register stores currently displayed data. device features integrated diagnostics overtemperature, open-LED, shorted-LED conditions. Integrated shift registers store global fault status information during load well detailed temperature/ open-LED/shorted-LED diagnostics results. AS1109 also features low-current diagnostic mode minimize display flicker during fault testing. AS1109 available 16-pin SOIC-150 package 16-pin SSOP Package.
Features
Constant-Current Output Channels Excellent Output Current Accuracy Between Channels: <±2% Between AS1109 Devices: <±2%
Output Current Channel: 100mA Controlled In-Rush Current Over-Temperature, Open-LED, Shorted-LED Diagnostics Functions Low-Current Test Mode Global Fault Monitoring Shutdown Mode Current: 10µA Fast Serial Interface: 30MHz Cascaded Configuration Extremely Fast Output Drivers Suitable 16-pin SOIC-150 16-pin SSOP Package
Applications
device ideal fixed- slow-rolling displays using static multiplexed matrix dimming functions, large matrix displays, mixed display switch monitoring, displays elevators, public transports (underground, trains, buses, taxis, airplanes, etc.), large displays stadiums public areas, price indicators retail stores, promotional panels, bar-graph displays, industrial controller displays, white good panels, emergency light indicators, traffic signs.
Figure Main Diagram Assignments
+VLED OUTN0 OUTN1 OUTN2 OUTN3 OUTN4 OUTN5 OUTN6 OUTN7 REXT
AS1109
OUTN0 OUTN1
AS1109
OUTN7 OUTN6 OUTN5 OUTN4
REXT
OUTN2 OUTN3
www.austriamicrosystems.com
Revision 1.05
AS1109
austriam systems
Copyrights
Copyright 1997-2006, austriamicrosystems Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered rights reserved. material herein reproduced, adapted, merged, translated, stored, used without prior written consent copyright owner. products companies mentioned trademarks registered trademarks their respective companies.
Disclaimer
Devices sold austriamicrosystems covered warranty patent indemnification provisions appearing Term Sale. austriamicrosystems makes warranty, express, statutory, implied, description regarding information forth herein regarding freedom described devices from patent infringement. austriamicrosystems reserves right change specifications prices time without notice. Therefore, prior designing this product into system, necessary check with austriamicrosystems current information. This product intended normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, high reliability applications, such military, medical life-support lifesustaining equipment specifically recommended without additional processing austriamicrosystems each application. shipments less than parts manufacturing flow might show deviations from standard production flow, such test flow test location. information furnished here austriamicrosystems believed correct accurate. However, austriamicrosystems shall liable recipient third party damages, including limited personal injury, property damage, loss profits, loss use, interruption business indirect, special, incidental consequential damages, kind, connection with arising furnishing, performance technical data herein. obligation liability recipient third party shall arise flow austriamicrosystems rendering technical other services.
Contact Information
Headquarters austriamicrosystems A-8141 Schloss Premstaetten, Austria Tel: 3136 Fax: 3136 e-mail: info@austriamicrosystems.com Sales Offices, Distributors Representatives, please visit:
austriamicrosystems
www.austriamicrosystems.com Revision 1.05
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General Description AS1109 designed drive LEDs through fast seria

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