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LMP8481MMX-S/NOPB PDF预览

LMP8481MMX-S/NOPB

更新时间： 2024-11-24 11:07:55
品牌 Logo 应用领域
德州仪器 - TI 放大器运算放大器放大器电路
页数 文件大小 规格书
28页 1110K
描述
4V 至 76V 双向电流感应放大器 | DGK | 8 | -40 to 125

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LMP8481MMX-S/NOPB 数据手册

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LMP8480 / LMP8481  
Precision 76V High-Side Current Sense Amplifiers with Voltage Output  
General Description  
Features  
The LMP8480 and LMP8481 are precision high-side current  
sense amplifiers that amplify a small differential voltage de-  
veloped across a current sense resistor in the presence of  
high input common-mode voltages.  
Typical values, TA = 25°C  
Bi-Directional or Uni-Directional Sensing  
Common Mode Voltage Range  
Supply Voltage Range  
Fixed Gains  
Gain Accuracy  
Offset  
Bandwidth (-3dB)  
Quiescent Current  
Buffered High-Current Output  
Input Bias Current  
PSRR (DC)  
CMRR (DC)  
Temperature Range  
MSOP-8 or LLP-8 Packages  
●
4.0V to 76V  
4.5V to 76V  
20, 50, 60 and 100 V/V  
±0.1%  
●
●
These amplifiers are designed for bidirectional (LMP8481) or  
unidirectional (LMP8480) current applications and will accept  
input signals with common-mode voltage range from 4V to  
76V with a bandwidth of 270 kHz.  
●
●
●
●
●
●
●
●
●
●
●
±80µV  
270KHz  
<100µA  
>5mA  
7µA  
122dB  
124dB  
Since the operating power supply range overlaps the input  
common mode voltage range, the LMP848x can be powered  
by the same voltage that is being monitored. This benefit  
eliminates the need for an intermediate supply voltage to be  
routed to the point of load where the current is being moni-  
tored, resulting in reduced component count and board  
space.  
-40 to +125°C  
The LMP848x family consists of fixed gains of 20, 50, 60 and  
100 for applications that demand high accuracy over temper-  
ature. The low input offset voltage allows the use of smaller  
sense resistors without sacrificing system error.  
Applications  
High-side current sense  
●
●
●
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The wide operating temperature range of -40C to 125C makes  
the LMP848x an ideal choice for automotive, telecommuni-  
cations, industrial, and consumer applications.  
Vehicle current measurement  
Telecommunications  
Motor controls  
The LMP8480 and LMP8481 are pin for pin replacements for  
the MAX4080 and MAX4081, offering improved offset volt-  
age, wider reference adjust range and higher output drive  
capabilities.  
Laser or LED Drivers  
Energy Management  
Solar Panel Monitoring  
The LMP8480 and LMP8481 are available in a 8-pin MSOP  
package and the LMP8481 is also available in a 8–pad LLP.  
Typical Application  
30191535  
LMP™ is a trademark of National Semiconductor Corporation.  
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.  
301915 SNVS829A  
Copyright © 1999-2012, Texas Instruments Incorporated  
1234567...28

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LMP8481MMX-S/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LMP8481MME-S/NOPB TI

类似代替

 4 to 76V, bi-directional current sense amplifier 8-VSSOP -40 to 125
LMP8481MM-S/NOPB TI

类似代替

 Precision 76V High-Side Current Sense Amplifiers with Voltage Output

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