ST ALED6001汽车高亮度LED解决方案
ST公司的ALED6001是汽车级(AECQ100兼容)LED驱动器,集成了升压控制器和高边电流传感电路,用来优化驱动高亮度LED串,器件和多种拓扑如升压,SEPIC和浮动负载降压-升压.输入电压5.5 V - 36 V,输出电压高达60V,主要用在汽车外灯照明,白天运行照明,高低聚光灯,雾灯和方位灯/闪光信号灯.本文介绍了ALED6001主要特性,框图,几种应用电路以及安装在STM32 Nucleo板的LED驱动器扩展板X-NUCLEO-LED61A1主要特性,电路图,材料清单和PCB元件布局图.
The ALED6001 is an automotive-grade(AECQ100 compliant) LED driver that combines a boost controller and high-side current sensingcircuitry optimized for driving one string of highbrightnessLEDs. The device is compatible withmultiple topologies such as boost, SEPIC andfloating load buck-boost. PWM dimming of theLED brightness is achieved by means of anexternal MOSFET in series with the LED stringand directly driven by a dedicated pin. The pinthat manages the LED current setting, usuallyconnected to an external resistor, can also beused as analog control if a microcontroller islocated in the LED module.
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