1A输出电流线性脉宽调制调光能力1MHz的开关频率CXDC6582恒流LED驱动器入电压7V至60V连续传导模式电感降压转换器 | |||||||||||||||||||||||||||||||||||||||||||||||
目录 1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档） 一.产品概述 The CXDC6582 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 7V and 60V and provides an externally adjustable output current of up to 1A. Depending upon the supply voltage and external components, the CXDC6582 can provide max. 30 watts of output power. The CXDC6582 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 either a DC voltage or 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 CXDC6582 is available in PSOP-8 (ESOP8) with power pad packages. 二.产品特点 Low components count Wide input voltage range: 7V to 60V Up to 1A output current Linear and PWM dimming capability Up to 1MHz switching frequency Typical 5% output current accuracy Open/short circuit LED protection High efficiency (up to 97%) High-Side Current Sense Hysteretic Control: No Compensation Constant current LED driver 三.应用范围 DC/DC LED driver applications Automotive lighting General purpose constant current source LED back-up lighting SELV lighting Backlighting for flat panel displays 四.技术规格书（产品PDF) 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 五.产品封装图 出色的调光特性，非常高的效率，宽电压输入，简洁的外围电路。 CXDC6582 专为 LED 背光---车灯---LED 照明的各种恒流应用打造。 六.电路原理图
The CXDC6582 allow dimming with a PWM signal at the DIM input. A logic level below 0.3V at DIM forces to turn off the LED and the logic level at DIM must be at least 2.5V to turn on the full LED current. The frequency of PWM dimming ranges from 100Hz to more than 20 kHz. The DC voltage is valid from 0.5V to 2.5V. When the dc voltage is higher than 2.5V, the output current keeps constant. Constant LED current : I=100mV/Rs 七.相关芯片选择指南 更多同类产品......
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1A输出电流线性脉宽调制调光能力1MHz的开关频率CXDC6582恒流LED驱动器入电压7V至60V连续传导模式电感降压转换器
发表时间：2020-06-25浏览次数：3
