器件名称: AX2020
功能描述: 生产厂商：亚瑟莱特科技股份有限公司 AXElite Technology Co.,Ltd.
32V,1A Step-down High Brightness
LED Driver with 5000:1 Dimming
特别适合MR16、MR11、转向灯、刹车灯……等
文件大小: 471.34KB 共11页
简 介:授权代理商：深圳市四海恒通科技有限公司 电话：0755-8398 3377 135 9011 2223 http://www.gofotech.com
AX2020
32V,1A Step-down High Brightness LED Driver with 5000:1 Dimming
GENERAL DESCRIPTION The AX2020 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 AX2020 can provide more than 15 watts of output power. The AX2020 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 AX2020 is available in SOT89-5L package. FEATURES Simple low parts count Wide input voltage range: 8V to 32V Up to 1A output current Single pin on/off and brightness control using PWM Up to 1MHz switching frequency Typical 5% output current accuracy High-Side Current Sense Hysteretic Control: No Compensation Adjustable Constant LED Current
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Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.1 Jul.06, 2010
授权代理商：深圳市四海恒通科技有限公司 电话：0755-8398 3377 135 9011 2223 http://ww……
