品牌:ZBW | 型号:AH9917 | 类型:驱动IC |
封装:SOT89 | 批号:2021+ |
24V-60V转12V 600MA恒流驱动降压芯片AH9917 是一款小型SOT89封装的LED驱动降压芯片 24v-60v ile 12V 600mA sürekli a ??mdaki sürücü dolar ?ipi ah9917, sot89 ile paketlenmi? kü?ük LED sürücü dolar ?ipi
AH9917宽输入电压范围:4.8V~60V,负载输出电压可从3V 到 50V。通过外接电阻可以设定输出电流,输出电流可达 1.2A,且恒流精度高。根据不同的输入电压和外部器件, AH9917 可以驱动供高达数十瓦的 LED。高电流精度:±5%,高效率:97%,AH9917 只需很少的外接元件就可实现降压、恒流驱动功能,并可以通过 DIM引脚实现 PWM 和线性调光功能,且当VDIM=0V 时,整个芯片关断进入低功耗待机模式。另外,当 DIM 脚接 NTC 电阻到地可实现输出 LED 过温电流补偿功能,由于采用滞环控制方式,AH9917 对负载瞬变具有非常快的响应速度,工作频率可达 1MHz, AH9917内置负载开路和负载短路保护功能,有效地保护恒流控制系统。
应用领域
AH9917宽输入135-3806-7573-xv-同、号
* 建筑、工业、环境照明
* 汽车尾灯、雾灯、指示灯、应急灯、
* MR16 及 LED 灯
AH9917具有DIM调光脚,DIM脚接 NTC 电阻到地实现过温电流补偿。AH9917 DIM 脚接电阻到地实现亮度调节。AH9917 输入14-45V,输出12-13V 600MA照明灯恒流 AH9917 24V驱动两串并联 400MA AH9917 电源待机电流160uA,AH9917 50V恒流研究电路 SOT89封装AH9917 AH9917恒流调光应用芯片 AH9917替代pAM2861、QX4117驱动恒流灯
Ang Ah9917 ay may madilim na pinong dimming, na may koneksyon sa NTC resistor upang malaman ang kumpensasyon sa kasalukuyang temperatura. Ang madilim na pin ng ah9917 ay naka-uugnay sa lupa upang malaman ang pagbabago sa kaliwanagan. Ah9917 input 14-45v, output 12-13v 600mA constant current ah9917 24V drive two series parallel 400mA ah9917 power supply standby current 160ua, ah9917 50V constant current research circuit sot89 package ah9917 ah9917 constant current dimming application chip ah9917 replace pam2861 and qx4117 to drive constant current lamps