[原创] PowerIntLYT1402－160432W LED驱动器参考设计DER－556

Power Integrations公司的LYT1402-1604是LYTSwitch-1系列产品,集成了高压MOSFET和临界导通模式(CrM)控制器,功率因素大于0.9,效率大于93%,725V MOSFET增加了抗线路电压浪涌特性,具有低EMI和设计灵活性,最高可靠性,输入电压90 VAC – 308 VAC,主要用在单级高PF和恒流LED灯和LED管灯.本文介绍了LYT1402-1604产品亮点,框图,8W LED驱动器电路图以及32W非调光非隔离降压LED驱动器参考设计DER-556主要特性,电路图,材料清单和PCB设计图.

The LYTSwitch™-1 family is ideal for single-stage, high PF, constant current LED bulbs and tubes. The family incorporates a high-voltage MOSFET with a variable on-time CrM controller. Extensive protection features with minimum external components provide industry leading power density and functionality. The devices can be used in high-side or low-side non-isolated buck topology.

The CrM operation results in low turn-on losses and reduces cost of output diode (slower reverse recovery).

LYTSwitch-1 devices are suitable for applications from 2 W to 22 W. See Table 1 for selection guidance.

LYT1402-1604产品亮点:

Single-Stage PFC + Accurate CC Output

±3% CC regulation in single line input voltage applications

Power factor >0.9

High efficiency >93%

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