Microsemi LX23224IDB, Руководство пользователя

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LX23224IDB Evaluation Board U U s s e e r r G G u u i i d d e e
Copyright © 2011
Microsemi
4
Rev. 0.2, 10-04-2011 Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Within the USA: (800) 713-4113, Outside the USA: (949) 221-7100 Fax: (949) 756-0308
2 Introduction
Microsemi’s Evaluation Kit (see Figure 1) provides designers with a platform to evaluate the performance and
implementation of LX23224IDB EDGE-Lit LED Display Driver.
All necessary steps and connection instructions required to install and operate this board are provided within this
document.
Backlight Demo System enables Back Light LCD designers to evaluate Microsemi's driver EDGE-Lit solution with
maximum flexibility and ease in configuration.
Figure 1: LX23224DB Evaluation Board – General View
2.1 EVB Features

LX23224IDB supports four LED strings

Digital dimming input
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Minimum duty cycle 4%@2KHz
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Per string voltage monitoring for failure events detection
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Controls LED string voltage for power loses reduction
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LED driver inherent thermal protection

System input voltage and output voltage monitoring
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125 mA/string
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120V output voltage

140KHz DC/DC switching frequency
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RoHS compliant