Datasheet > LMP8481-Q1

LMP8481-Q1

更新时间： 2024-11-24 11:11:23

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
31页	2661K
描述
AEC-Q100、4V 至 76V、双向电流感应放大器

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LMP8481-Q1 数据手册

Support &

Community

Product

Folder

Order

Now

Tools &

Software

Technical

Documents

LMP8480-Q1, LMP8481-Q1

SNVSAL6A –JULY 2016–REVISED FEBRUARY 2017

LMP848x-Q1 Automotive, 76-V, High-Side, High-Speed, Current-Sense Amplifier

1 Features

3 Description

The

LMP8481-Q1 devices are precision, high-side,

current-sense amplifiers that amplify small

automotive-qualified

LMP8480-Q1

and

•

Qualified for Automotive Applications

•

AEC-Q100 Qualified With the Following Results:

–

Device Temperature Grade 1: –40°C to 125°C

Ambient Operating Temperature

differential voltage developed across a current-sense

resistor in the presence of high input common-mode

voltages. These amplifiers are designed for

–

Device HBM ESD Classification Level 2

Device CDM ESD Classification Level C6

bidirectional

(LMP8481-Q1)

unidirectional

(LMP8480-Q1) current applications and accept input

signals with a common-mode voltage range from 4 V

to 76 V with a bandwidth of 270 kHz. Because the

operating power-supply range overlaps the input

common-mode voltage range, the LMP848x-Q1 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 monitored,

resulting in reduced component count and board

space.

•

Bidirectional or Unidirectional Sensing

Common Mode Voltage Range: 4.0 V to 76 V

Supply Voltage Range: 4.5 V to 76 V

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

Gain Accuracy: ±0.1%

Offset: ±80 µV

Bandwidth (–3 dB): 270 kHz

Quiescent Current: < 100 µA

Buffered High-Current Output: > 5 mA

Input Bias Current: 7 µA

The LMP848x-Q1 family consists of fixed gains of 20,

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 LMP8480-Q1

and LMP8481-Q1 are pin-for-pin replacements for the

MAX4080 and MAX4081 devices, offering improved

offset voltage, wider reference adjust range, and

higher output drive capabilities. The LMP8480-Q1

and LMP8481-Q1 are available in an 8-pin VSSOP

package.

PSRR (DC): 122 dB

CMRR (DC): 124 dB

2 Applications

•

Body Control Modules

Powertrain

Battery Management

Inverters

Device Information⁽¹⁾

PART NUMBER

LMP8480-Q1

PACKAGE

VSSOP (8)

BODY SIZE (NOM)

3.00 mm x 3.00 mm

LMP8481-Q1

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application Schematic

I_SENSE

= +4.5V to +76V

To Load

R_SENSE

0.1 µF

RSP

GND

LMP8481-Q1

REFA

OUT

V_SENSE

V_IN+

REFB

RSN

ADC

V_REF

V_IN-

LM4140ACM-1.2

0.1 µF

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...31

中文翻译

下载PDF

与LMP8481-Q1相关器件

型号	品牌	获取价格	描述	数据表
LMP8481SDE-F	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SDE-H	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SDE-S	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SDE-T	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SD-F	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SD-H	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SD-S	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SD-T	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SDX-F	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output
LMP8481SDX-H	TI	获取价格	Precision 76V High-Side Current Sense Amplifiers with Voltage Output

与LMP8481-Q1相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

35
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

26
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

54
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

52

产品中心

服务支持

精选活动

关于我们

帮助中心

LMP8481-Q1

LMP8481-Q1 数据手册

与LMP8481-Q1相关器件

与LMP8481-Q1相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LMP8481-Q1

LMP8481-Q1 数据手册

与LMP8481-Q1相关器件

与LMP8481-Q1相关文章

您还可以找

您在本页遇到什么问题？