LMP8481SDX-T

更新时间： 2024-11-26 12:09:51

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
28页	1110K
描述
Precision 76V High-Side Current Sense Amplifiers with Voltage Output

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LMP8481SDX-T 数据手册

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, T_A= 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

●

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

12 3 4 5 6 7...28

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与LMP8481SDX-T相关器件

型号	品牌	获取价格	描述	数据表
LMP8601	NSC	获取价格	60V Common Mode, Bidirectional Precision Current Sensing Amplifier
LMP8601	TI	获取价格	具有直列式滤波器功能的 -22V 至 60V、双向电流感应放大器
LMP8601EDRQ1	TI	获取价格	具有直列式滤波器功能的 AEC-Q100、-22V 至 60V、双向电流感应放大器 \| D
LMP8601MA	NSC	获取价格	60V Common Mode, Bidirectional Precision Current Sensing Amplifier
LMP8601MA/NOPB	TI	获取价格	60-V Common-Mode Bidirectional Precision Current Sensing Amplifier
LMP8601MAX	NSC	获取价格	60V Common Mode, Bidirectional Precision Current Sensing Amplifier
LMP8601MAX/NOPB	TI	获取价格	60-V Common-Mode Bidirectional Precision Current Sensing Amplifier
LMP8601MAX-NOPB	TI	获取价格	60-V Common-Mode Bidirectional Precision Current Sensing Amplifier
LMP8601-Q1	TI	获取价格	具有直列式滤波器功能的 AEC-Q100、-22V 至 60V、双向电流感应放大器
LMP8601QMA	NSC	获取价格	60V Common Mode, Bidirectional Precision Current Sensing Amplifier

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