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[原创] ADI LTM8005 38VIN升压μModule稳压器解决方案

关键词:电源管理 μModule稳压器 LED驱动器 LTM8005

时间:2018-10-09 10:50:14       来源:中电网

摘要: ADI公司的LTM8005是38VIN 38VOUT的升压电源微模块(μModule)LED驱动器,固定频率和电流模式架构使得大范围的电源和输出电压内具有稳定工作,广谱频率调制(SSFM)可以改善电磁兼容(EMC)性能,输入电压5-38V,支持升压或SEPIC电源拓扑,可调LED电流高达1.6A,集成了40V 10A功率开关,3000:1真彩色PWM调光,工作温度–40℃ - 150℃,主要用在大功率LED和高压LED,以及精密限流的电压稳压器.本文介绍了LTM8005主要特性,功能框图,多种应用电路,以及演示板DC2257A主要特性,测量建立图,电路图,材料清单.

The LTM.8005 is a 38VIN, 38VOUT boost μModule (power micromodule) LED driver designed to regulate current or voltage and is ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Spread spectrum frequency modulation (SSFM) can be activated for improved electromagnetic compatibility (EMC) performance.

The ground-referred voltage FB pin serves as the input for several LED protection features, and also allows the converter to operate as a constant voltage source. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL inputs provide additional analog dimming capability.

The low profile package enables utilization of unused space on the bottom of PC boards. The LTM8005 is packaged in therma..

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