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DS7880 PDF预览

DS7880

更新时间: 2024-02-23 07:50:36
品牌 Logo 应用领域
美国国家半导体 - NSC 解码器驱动器高压
页数 文件大小 规格书
6页 140K
描述
High Voltage 7-Segment Decoder/Driver

DS7880 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:DIP, DIP16,.3Reach Compliance Code:unknown
风险等级:5.92JESD-30 代码:R-XDIP-T16
JESD-609代码:e0端子数量:16
最高工作温度:125 °C最低工作温度:-55 °C
封装主体材料:CERAMIC封装代码:DIP
封装等效代码:DIP16,.3封装形状:RECTANGULAR
封装形式:IN-LINE电源:5 V
子类别:Display Drivers最大压摆率:43 mA
标称供电电压:5 V表面贴装:NO
技术:BIPOLAR温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL

DS7880 数据手册

 浏览型号DS7880的Datasheet PDF文件第2页浏览型号DS7880的Datasheet PDF文件第3页浏览型号DS7880的Datasheet PDF文件第4页浏览型号DS7880的Datasheet PDF文件第5页浏览型号DS7880的Datasheet PDF文件第6页 
March 1988  
DS7880/DS8880 High Voltage 7-Segment Decoder/Driver  
General Description  
The DS7880/DS8880 is custom designed to decode four  
lines of BCD and drive a gas-filled seven-segment display  
tube.  
gram resistor (R ) from V to the Program input in accord-  
CC  
P
ance with the programming curve. The circuit design pro-  
vides a one-to-one correlation between program input cur-  
rent and b-segment output current.  
Each output constitutes a switchable, adjustable current  
sink which provides constant current to the tube segment,  
even with high tube anode supply tolerance or fluctuation.  
These current sinks have a voltage compliance from 3V to  
at least 80V; typically the output current varies 1% for out-  
put voltage changes of 3 to 50V. Each bit line of the decod-  
er switches a current sink on or off as prescribed by the  
input code. Each current sink is ratioed to the b-output cur-  
rent as required for even illumination of all segments.  
The Blanking Input provides unconditional blanking of any  
output display, while the Ripple Blanking pins allow simple  
leading- or trailing-zero blanking.  
Features  
Y
Current sink outputs  
Y
Adjustable output currentÐ0.2 to 1.5 mA  
Y
High output breakdown voltageÐ110V typ  
Output currents may be varied over the 0.2 to 1.5 mA range  
for driving various tube types or multiplex operation. The  
output current is adjusted by connecting an external pro-  
Y
Suitable for multiplex operation  
Y
Blanking and Ripple Blanking provisions  
Y
Low fan-in and low power  
Logic Diagram  
TL/F/5845–1  
C
1995 National Semiconductor Corporation  
TL/F/5845  
RRD-B30M105/Printed in U. S. A.  

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