Maxim MAX25610A降压升压LED驱动器解决方案
Maxim公司的MAX25610A/MAX25610B是全同步的LED驱动器,提供用来驱动大功率LED的恒流输出.器件集成两个60mΩ功率MOSFET,用来同步运行,以最少化外接元件.灵活的配置支持降压,反相降压-升压和升压转换.器件采用电流模式控制,具有快速瞬态响应和容易实现回路稳定.MAX25610A/MAX25610B包括逐个周期的限流,输出过压保护(OVP),LED串开路保护,输出短路保护(SCP)和热关断.器件还包括两个5V稳压器,支持外接电流检测,LED电流精度分别是±3%和±6%.MAX25610A/MAX25610B满足汽车规范AEC-Q100,输入电压从5V到36V,2.2MHz开关频率降低电感的尺寸.带模拟电压控制的PWM调光最少化调光外接元件.工作温度-40℃ 到+125℃,主要用在汽车照明和工业照明应用.本文介绍了MAX25610A/MAX25610B主要优势和特性,功能框图和多种应用电路图,以及评估板MAX25610 EVK主要优势和特性,电路图,材料清单和PCB设计图.
The MAX25610A/MAX25610B are fully synchronous LED drivers that provide constant output current to drive high-power LEDs. The MAX25610A/MAX25610B integrate two 60mΩ power MOSFETs for synchronous operation, minimizing external components. Flexible configuration supports buck, inverting buck-boost, and boost conversion. The devices incorporate current-mode control that provides fast transient response and eases loop stabilization. The MAX25610A/MAX25610B include cycle by cycle current limiting, output overvoltage protection (OVP), open-string protection, output short-circuit protection (SCP), and thermal shutdown.
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