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DS8973

更新时间: 2024-11-29 22:49:07
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器
页数 文件大小 规格书
4页 86K
描述
DS8973 9-Digit LED Driver

DS8973 数据手册

 浏览型号DS8973的Datasheet PDF文件第2页浏览型号DS8973的Datasheet PDF文件第3页浏览型号DS8973的Datasheet PDF文件第4页 
May 1986  
DS8973 9-Digit LED Driver  
General Description  
The DS8973 is a 9-digit driver designed to operate from  
3-cell battery supplies. Each driver will sink 100 mA to less  
than 0.7V when driven by only 0.1 mA. Each input is blocked  
by diodes so that the input can be driven below ground with  
virtually no current drain. This is especially important in cal-  
culator systems employing a DC-to-DC converter on the  
negative side of the battery. If the converter were on the  
positive side of the battery, the converter would have to  
handle all of the display current, as well as the MOS calcula-  
tor chip current. But if it is on the negative side, it only has  
to handle the MOS current. The DS8973 is designed for the  
more efficient operating mode.  
Features  
Y
Nine complete digit drivers  
Y
Built-in low battery indicator  
Y
High current outputsÐ100 mA  
Y
Straight through pin out for easy board layout  
Equivalent Circuit Diagrams  
Typical Driver Circuit  
Typical D.P. Out Circuit  
TL/F/5851–2  
TL/F/5851–1  
Connection Diagram  
Dual-In-Line Package  
TL/F/5851–3  
Top View  
Order Number DS8973N  
See NS Package Number N22A  
C
1995 National Semiconductor Corporation  
TL/F/5851  
RRD-B30M105/Printed in U. S. A.  

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