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LM3915N-1/NOPB PDF预览

LM3915N-1/NOPB

更新时间： 2024-11-06 14:52:27
品牌 Logo 应用领域
德州仪器 - TI 驱动光电二极管接口集成电路
页数 文件大小 规格书
32页 1426K
描述
Dot/Bar Display Driver 18-PDIP 0 to 70

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中文翻译

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LM3915N-1/NOPB 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：DIP
包装说明：DIP, DIP18,.3针数：18
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.09
其他特性：SELECTABLE DOT MODE数据输入模式：ANALOG
显示模式：BAR GRAPH接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：R-PDIP-T18长度：21.78 mm
湿度敏感等级：1复用显示功能：NO
位数/字符：10-DIGIT功能数量：1
区段数：10端子数量：18
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装等效代码：DIP18,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：5.08 mm
子类别：Display Drivers最大供电电压：25 V
最小供电电压：3 V表面贴装：NO
技术：BIPOLAR温度等级：COMMERCIAL
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.62 mmBase Number Matches：1

LM3915N-1/NOPB 数据手册

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LM3915  
www.ti.com  
SNVS740C –JANUARY 2000–REVISED MARCH 2013  
LM3915 Dot/Bar Display Driver  
Check for Samples: LM3915  
1
FEATURES  
DESCRIPTION  
The LM3915 is a monolithic integrated circuit that  
senses analog voltage levels and drives ten LEDs,  
LCDs or vacuum fluorescent displays, providing a  
2
•
•
•
3 dB/step, 30 dB Range  
Drives LEDs, LCDs, or Vacuum Fluorescents  
Bar or Dot Display Mode Externally Selectable  
by User  
logarithmic  
3 dB/step analog display. One pin  
changes the display from a bar graph to a moving dot  
display. LED current drive is regulated and  
programmable, eliminating the need for current  
limiting resistors. The whole display system can  
operate from a single supply as low as 3V or as high  
as 25V.  
•
•
•
•
•
Expandable to Displays of 90 dB  
Internal Voltage Reference from 1.2V to 12V  
Operates with Single Supply of 3V to 25V  
Inputs Operate Down to Ground  
Output Current Programmable from 1 mA to 30  
mA  
The IC contains an adjustable voltage reference and  
an accurate ten-step voltage divider. The high-  
impedance input buffer accepts signals down to  
ground and up to within 1.5V of the positive supply.  
Further, it needs no protection against inputs of ±35V.  
The input buffer drives 10 individual comparators  
referenced to the precision divider. Accuracy is  
typically better than 1 dB.  
•
•
Input Withstands ±35V without Damage or  
False Outputs  
Outputs are Current Regulated, Open  
Collectors  
•
•
Directly Drives TTL or CMOS  
The Internal 10-step Divider is Floating and  
can be Referenced to a Wide Range of  
Voltages  
The LM3915's 3 dB/step display is suited for signals  
with wide dynamic range, such as audio level, power,  
light intensity or vibration. Audio applications include  
average or peak level indicators, power meters and  
RF signal strength meters. Replacing conventional  
meters with an LED bar graph results in a faster  
responding, more rugged display with high visibility  
that retains the ease of interpretation of an analog  
display.  
The LM3915 is Rated for Operation from 0°C to  
+70°C. The LM3915N-1 is Available in an 18-  
lead PDIP Package.  
The LM3915 is extremely easy to apply. A 1.2V full-  
scale meter requires only one resistor in addition to  
the ten LEDs. One more resistor programs the full-  
scale anywhere from 1.2V to 12V independent of  
supply voltage. LED brightness is easily controlled  
with a single pot.  
The LM3915 is very versatile. The outputs can drive  
LCDs, vacuum fluorescents and incandescent bulbs  
as well as LEDs of any color. Multiple devices can be  
cascaded for a dot or bar mode display with a range  
of 60 or 90 dB. LM3915s can also be cascaded with  
LM3914s for a linear/log display or with LM3916s for  
an extended-range VU meter.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2000–2013, Texas Instruments Incorporated  
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LM3915N-1/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3915N NSC

完全替代

 Dot/Bar Display Driver
LM3915N-1 TI

类似代替

 Dot/Bar Display Driver 18-PDIP 0 to 70
LM3914N-1/NOPB TI

功能相似

 LM3914 Dot/Bar Display Driver

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LM3916N-1/NOPB NSC

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 		IC LED DISPLAY DRIVER, PDIP18, PLASTIC, DIP-18, Display Driver
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