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BCR401U PDF预览

BCR401U

更新时间: 2024-02-09 21:29:05
品牌 Logo 应用领域
英飞凌 - INFINEON 驱动器
页数 文件大小 规格书
9页 122K
描述
LED Driver

BCR401U 数据手册

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BCR401U  
LED Driver  
Features  
LED drive current of 10mA  
Output current adjustable up to 65mA with external resistor  
Supply voltage up to 40V  
4
3
5
2
1
6
Easy paralleling of drivers to increase current  
Low voltage overhead of 1.4V  
High current accuracy at supply voltage variation  
No EMI  
High power dissipation of 750mW  
Reduced output current at higher temperatures - Negative thermal coefficient of -0.2% / K  
RoHS compliant (pb-free) small and robust SC-74 package  
Qualified according to AEC Q101  
Applications  
Channel letters for advertising, LED strips for decorative lighting  
Aircraft, train, ship illumination  
Retrofits for general lighting, white goods like refrigerator lighting  
Medical lighting  
Automotive applications like CHMSL and rear combination lights  
General Description  
The BCR401U is a cost efficient LED driver to drive low power LED’s. The advantages  
towards resistor biasing are:  
homogenous light output despite varying forward voltages in different LED strings  
homogenous light output of LED’s despite voltage drop across long supply lines  
homogenous light output independent from supply voltage variations  
longer lifetime of the LED’s due to reduced output current at higher temperatures  
(negative thermal coefficient)  
The advantages towards discrete solutions are:  
lower assembly cost  
smaller form factor  
better quality due to less soldering points  
higher output current accuracy due to pretested LED drivers  
Dimming is possible by using an external digital transistor at the ground pin.  
The BCR401U can be operated at higher supply voltages by putting LED’s between the  
power supply +VS and the power supply pin of the LED driver. You can find further details  
in the application note AN097.  
The BCR401U is a perfect fit for numerous low power LED applications by combining small  
form factor with low cost. These LED drivers offer several advantages to resistors like  
significantly higher current control at very low voltage drop ensuring high lifetime of LED’s.  
2009-07-31  
1

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