AX2020F5A.doc

深圳市泰德兰电子有限公司TEL: 86X2020F5A32V,1A Step-down High Brightness LED Driver with 5000:1 Dimmingaxelite 概要：The AX2020F5A is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. The device operates from an input supply between 8V and 32V and provides an externally adjustable output current of up to 1A. Depending upon the supply voltage and external components, the AX2020F5A can provide more than 15 watts of output power. The AX2020F5A includes the power switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts a wide range of pulsed dimming. Applying a voltage of 0.3V or lower to the DIM pin turns the output off and switches the device into a low current standby state. The AX2020F5A is available in SOT89-5L package.axelite 特点：n Simple low parts count n Wide input voltage range: 8V to 32V n Up to 1A output current n Single pin on/off and brightness control using PWM n Up to 1MHz switching frequency n Typical 5% output current accuracy n High-Side Current Sense n Hysteretic Control: No Compensation n Adjustable Constant LED Currentaxelite 电路框图：axelite目前产品线主要包括：DC-DC电源转换IC (Power Converter IC)、DC-DC电源控制IC (Power Control IC)、LED电源驱动IC (LED Power Devices IC)、LDO与其他电源IC (LD Power Devices & MOSFET)。台湾 axelite （亚瑟莱特） 系列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