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BCR421UE6327 PDF预览

BCR421UE6327

更新时间: 2024-10-28 12:27:31
品牌 Logo 应用领域
英飞凌 - INFINEON 驱动器
页数 文件大小 规格书
26页 1352K
描述
LED Driver

BCR421UE6327 数据手册

 浏览型号BCR421UE6327的Datasheet PDF文件第4页浏览型号BCR421UE6327的Datasheet PDF文件第5页浏览型号BCR421UE6327的Datasheet PDF文件第6页浏览型号BCR421UE6327的Datasheet PDF文件第8页浏览型号BCR421UE6327的Datasheet PDF文件第9页浏览型号BCR421UE6327的Datasheet PDF文件第10页 
BCR420U / BCR421U  
LED Driver  
1
LED Driver  
1.1  
Features  
LED drive current preset to 10 mA  
Continuous output current up to 150 mA with an external resistor  
Easy paralleling of drivers to increase current  
Supply voltage up to 40 V  
Low side current control  
Digital PWM input up to 10 kHz frequency (BCR421U)  
Up to 1 W power dissipation in a small SC74 package  
Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures  
RoHS compliant (Pb-free) package  
Automotive qualified according AEC Q101  
SC74-3D  
1.2  
Applications  
Architectural LED lighting  
Channel letters for advertising, LED strips for decorative lighting  
Retail lighting in fridge, freezer case and vending machines  
Emergency lighting (e.g. steps lighting, exit way signs etc.)  
1.3  
General Description  
The BCR420U / BCR421U provides a low-cost solution for driving 0.25 W LEDs with a typical LED current of  
75 mA to 150 mA. Internal breakdown voltage is higher than 40 V which is the maximum voltage the LED driver  
can sustain when the output is directly connected to supply voltage.  
The BCR420U / BCR421U can be operated with a supply voltage of more than 40 V considering the voltage drop  
of the LED load which reduces the output voltage to the maximum rating of the driver.  
The enable pin of BCR420U can withstand a maximum voltage of 40 V which can be increased adding a series  
resistor in front of the enable pin reducing the voltage at the enable pin below 40 V.  
The digital input pin of BCR421U allows dimming via a micro controller with frequencies up to 10 kHz.  
A reduction of the output current at higher temperatures is the result of the negative temperature coefficient of -  
0.2 %/K of the LED driver.  
With no need for additional external components like inductors, capacitors and free wheeling diodes, the  
BCR420U / BCR421U LED drivers are a cost-efficient and PCB-area saving solution for driving 0.25 W LEDs.  
Datasheet  
7
Revision 2.0, 2012-05-04  

BCR421UE6327 替代型号

型号 品牌 替代类型 描述 数据表
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