LMP8480

更新时间： 2024-11-04 12:00:31

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
24页	992K
描述
Precision 76V High-Side Current Sense Amplifiers with Voltage Output

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LMP8480 数据手册

LMP8480, LMP8481

www.ti.com

SNVS829A –JUNE 2012–REVISED AUGUST 2012

LMP8480 / LMP8481 Precision 76V High-Side Current Sense Amplifiers with Voltage

Output

Check for Samples: LMP8480, LMP8481

FEATURES

•

Temperature Range -40 to +125°C

MSOP-8 or LLP-8 Packages

•

Typical values, T_A= 25°C

Bi-Directional or Uni-Directional Sensing

Common Mode Voltage Range 4.0V to 76V

Supply Voltage Range 4.5V to 76V

Fixed Gains 20, 50, 60 and 100 V/V

Gain Accuracy ±0.1%

•

APPLICATIONS

•

High-side current sense

Vehicle current measurement

Telecommunications

Motor controls

Offset ±80µV

Laser or LED Drivers

Energy Management

Solar Panel Monitoring

Bandwidth (-3dB) 270KHz

Quiescent Current <100µA

Buffered High-Current Output >5mA

Input Bias Current 7µA

PSRR (DC) 122dB

CMRR (DC) 124dB

DESCRIPTION

The LMP8480 and LMP8481 are precision high-side current sense amplifiers that amplify a small differential

voltage developed across a current sense resistor in the presence of high input common-mode voltages.

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.

Since the operating power supply range overlaps the input common mode voltage range, the LMP848x can be

voltage to be routed to the point of load where the current is being monitored, resulting in reduced component

count and board space.

The LMP848x family consists of fixed gains of 20, 50, 60 and 100 for applications that demand high accuracy

over temperature. The low input offset voltage allows the use of smaller sense resistors without sacrificing

system error.

The wide operating temperature range of -40C to 125C makes the LMP848x an ideal choice for automotive,

telecommunications, industrial, and consumer applications.

The LMP8480 and LMP8481 are pin for pin replacements for the MAX4080 and MAX4081, offering improved

offset voltage, wider reference adjust range and higher output drive capabilities.

The LMP8480 and LMP8481 are available in a 8-pin MSOP package and the LMP8481 is also available in a

8–pad LLP.

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.

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.

12 3 4 5 6 7...24

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与LMP8480相关器件

型号	品牌	获取价格	描述	数据表
LMP8480ASQDGKRQ1	TI	获取价格	AEC-Q100、4V 至 76V 电流感应放大器 \| DGK \| 8 \| -40 to
LMP8480ATQDGKRQ1	TI	获取价格	AEC-Q100、4V 至 76V 电流感应放大器 \| DGK \| 8 \| -40 to
LMP8480MME-S/NOPB	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8480MME-T/NOPB	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8480MM-T/NOPB	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8480MMX-S/NOPB	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8480MMX-T/NOPB	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8480-Q1	TI	获取价格	AEC-Q100、4V 至 76V 电流感应放大器
LMP8480SDE-F	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8480SDE-H	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output

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