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RT8301 是具有动态余量控制( DHC )功能的8通道恒流吸入 LED 驱动器,它能提供良好的通道间电流一致性,可通过调节 VSET 电压设定合适的 MOSFET/BJT 电压差。此外, DHC 提供了稳定的 VFB 调节,这使得即便是在调光期间也能保持很小的电压纹波。RT8301 的8个通道之间的电流误差范围在3%以内,在不同芯片之间也保持这一水平。各通道的输出电流可通过一只外部电阻( RISET )进行调节。 LED 的亮度还可以通过施加在 EN/PWM 端的占空比范围为 0%~100% 的 PWM 信号进行调节。 RT8301 可以借助外部组件实现大电流操作满足应用需求。
宽输入电压范围:5V~24V
可调通道电流
3% 电流检测放大器输入偏移
VCC 欠压锁定
热关机
可调节动态余量控制( DHC )功能
LED 开路/短路保护
符合 RoHS 规范,不含卤素
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