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LED低压灯带灯条一般是12V,24V 36V,48V输入，市面上很多都是需要外围电子元器件，台湾数能推荐一款零外围元件，简易方便，.高精度恒流，低压差，耐压高达30V,定电流输出的LED线性恒流ICNU501。电流最小10MA-240MA可选。60MA以内下封装为SOT23-3,60MA以上为SOT89封装。 用NU501低压定电流恒流IC做的低压LED产品，具有以下优势: 一是每串灯珠电流都是恒定的，能保护灯珠，减少光衰，大大延长灯条的使用寿命 二是灯条的亮度一致性好 三是对要求接的长的工程单来说，减少了接线成本和人工成本，恒流灯条和串电阻的灯条成本就差不多了，恒流灯条更省 采用NU501定电流IC生产的方案成品案例:

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