[原创] Cirrus CS1680调光7W LED驱动器解决方案

Cirrus公司的CS1680是低压照明的可调光LED驱动器,具有最好的变压器兼容性,调光特性以及高达83%的效率,最低调光量5%,输出电压12V/15V,主要用在MR16灯和所有的12VAC/DC低压照明应用.本文介绍了CS1680主要特性,框图和应用电路,以及CRD1680-7W 7 W参考设计主要特性,电路图,材料清单和PCB设计图.

The CS1680 is a cascade boost-buck dimmable LEDdriver for the 12V halogen lamp-replacement market.

The CS1680 uses a Cirrus Logic proprietary intelligentdigital control that provides exceptional single-lamp andmulti-lamp transformer compatibility for non-dimmer systemsand dimmer systems paired with electronic andmagnetic low-voltage transformers.

The CS1680 integrates a continuous conduction mode(CCM) boost converter that provides transformer compatibilityand dimmer compatibility. An adaptive digitalalgorithm controls the boost stage and dimmer compatibilityoperation mode to enable flicker-free operationdown to 5% output current with leading-edge and trailing-edge dimmers.

CS1680主要特性:

• Best-in-class Transformer Compatibility
- Magnetic Transformers
- Electronic Transformers
• Best-in-class Dimmer Compatibility
- Leading-edge (TRIAC) Dimmers
- Trailing-edge Dimmers
• High Efficiency..

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