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新型ＬＥＤ 光柱指示器件以其色彩丰富、抗震性强、体积小、寿命长等优点正被越来越多的电子仪表产品设计者所采用， 其驱动芯片ＩＣ９５０４ 更是在设计光柱指示产品时不可缺少的驱动器件，本文介绍了新型ＬＥＤ 光柱指示器件及驱动芯片ＩＣ９５０４ 的性能参数及其应用电路。
The new LED light bar indicating device is used by more and more electronic instrument product designers due to its rich color, strong shock resistance, small volume and long service life. Its driver chip IC9504 is indispensable in designing the light bar indicating product Of the driver device, this article describes the performance of the new LED light bar indicating device and driver IC9504 performance parameters and application circuit.