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Diodes公司符合汽车规范的线性 LED 驱动器控制器配备低电压降和强化调光
Diodes公司符合汽车规范的线性 LED 驱动器控制器配备低电压降和强化调光
网络整理
2019-07-22 10:16:04
750
Related Key Words:
线形LED驱动器控制器 线形驱动LED灯
Diodes 公司 (Nasdaq:DIOD) 今日推出AL5814Q,一款符合汽车规范的线性 LED
驱动器控制器
,具备
低电压
降和开放式
LED
侦测功能,适用于汽车的线性驱动 LED 灯。
AL5814Q 适用于需要特定变更控制的汽车应用,符合 AEC-Q100 标准、具有1级温度等级、通过生产零件核准程序,且以 IATF16949:2016 标准认证生产设施制造。该设备可在 4.5V 到 60V 的输出
电压范围
内正常运作,配备高达 15mA 的驱动器,使用外部驱动晶体管、MOSFET 或 BJT,利于减少其功耗。本设备能驱动高电流的 LED 或多个 LED 灯条,很适合需要高照明输出的产品应用,包括车牌照明、车尾灯、车内灯和仪表板。
AL5814Q的 VSET 接脚可透过电阻
分配器
、模拟调光和热回流,以低电压降调整输出电流回馈等级,热回流使用 NTC 电阻器达成。
PWM 调光则是对 VFAULT 接脚应用 PWM 讯号实现,并提供过热保护以及输入欠压锁定。VFAULT 接脚提供的开路 LED 侦测功能则也可透过 SFAULT 接脚启动来支持。
AL5814Q 紧密的 0.4V 参考电压 (温度范围 ±5%) 提供高水平的热稳定性和灯具间的优异匹配。
AL5814Q 提供的裸露封装为 MSOP-8EP。
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