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  • Model：BCR450
  • Manufacturer：HUABAN
  • Date Code：10+rohs 11+rohs
  • Standard Package：3000
  • Min Order：10
  • Mark/silk print/code/type：50s
  • Package：SOT-163/SOT23-6

恒流
Constant Current		是 YES
恒压
Constant Voltage
拓扑
Topology		线性（LDO），PWM Linear (LDO), PWM
输出数
Number of Outputs		1
内部驱动器
Internal Driver		是 YES
初级类型
Type - Primary		通用 General Purpose
次级类型
Type - Secondary
频率
Frequency		1MHz
电源电压
Voltage - Supply		8V~27V
输出电压
Voltage - Output		6V
Description & ApplicationsFEATURES • Power LED Driver IC • Low voltage drop across sense resistor, 0.15 V typical • High output current precision • Operating voltage fro 8 to 27 V • Over voltage protection • Overtemperature current foldback and Thermal shut down function • Adjustable Constant LED Current up to 85 mA in stand alone operation • Precise Internal bandgap enables High output current accuracy • Up to 2.5 A LED current possible by using external transistor • EN Input for PWM LED brightness control and On/Off control • Very Low Standby Current • Minimum number of external components required, no inductors • Very small SC-74 package: 2.9 mm x 2.5 mm x 1.1 mm Benefits • High level of colour control due to high output current precision • Small space requirement • No electro- magnetic interference • Active thermal monitoring of chip and LED temperature with current fold- back to avoid thermal overstress • Low cost device • Scalable output stage optimizing cost and space Typical Applications • General lighting e.g. retrofits • Architectural lighting, Medical and Dental lighting • Transportation like train and aircraft lighting • Strobe lighting • Universal constant current source • Signal and marker lights for orientation or navigation • LED controller for industrial applications, not qualified to AECQ-100
描述与应用特点 •电源LED驱动IC •低电压检测电阻，压降典型值0.15 V •高输出电流精度 •工作电压来回8至27 V •过电压保护 •过热电流折返和热关机功能 •可调恒定LED电流高达85 mA的独立操作 •精确的内部带隙，实现高输出电流精度 •高达2.5 A LED电流可以通过使用外部晶体管 •EN输入PWM控制LED亮度和开/关控制 •极低的待机电流 •最小所需的外部元件数量，无需电感器 •非常小的SC-74封装：2.9毫米×2.5毫米×1.1毫米 优点 •由于高输出电流精度色彩控制水平高 •小空间要求 •无电磁干扰 •主动热监测芯片温度和LED电流折返，以避免过度热 •低成本设备 •可扩展的输出级优化成本和空间 典型应用 •一般照明，例如改造 •建筑照明，医疗及牙科照明 •火车和飞机等交通设施照明 •频闪照明 •通用恒流源 •定向或导航信号和标志灯 •LED控制器为工业应用，而不是符合AECQ-100

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