Datasheet > MAX4374

MAX4374

更新时间： 2024-11-25 14:57:43

品牌	Logo	应用领域
亚德诺 - ADI		放大器比较器
页数	文件大小	规格书
13页	294K
描述
低成本、微功耗、高边电流检测放大器 + 比较器 + 电压基准IC

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中文翻译

获取价格

数据手册

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MAX4374 数据手册

EVALUATION KIT AVAILABLE

Low-Cost, Micropower, High-Side

Current-Sense Amplifier +

MAX4373/MAX4374/MAX4375

General Description

Comparator + Reference ICs

Benefits and Features

The MAX4373/MAX4374/MAX4375 low-cost, micropow-

er, high-side current-sense supervisors contain a high-

side current-sense amplifier, bandgap reference, and

comparator with latching output. They feature a voltage

output that eliminates the need for gain-setting resistors,

making them ideal for today’s notebook computers, cell

phones, and other systems where battery/DC current

monitoring is critical. High-side current monitoring is

especially useful in battery-powered systems since it

does not interfere with the ground path of the battery

charger. The 0 to +28V input common-mode range is

independent of the supply voltage, which ensures that

the current-sense feedback remains viable even when

connected to a battery pack in deep discharge.

• Integrated Current-Sensing Solution Simplifies High-

Side Current Monitoring

• Current-Sense Amplifier plus Internal Comparator

and Bandgap Reference with Improved Accuracy

• 1mV (max) Input Offset Voltage

• 2% (max) Full-Scale Accuracy

• Internal Bandgap Reference ( 1ꢀ.% Accuracy)

• High Accuracy +2V to +28V Common-Mode Range,

Functional Down to 0V, Independent of Supply

Voltage Ensures Current Monitoring Even In Deep

Discharge of Battery Pack

• Low Power Consumption Extends Battery Life

• 50µA Supply Current

• Single +2ꢀ7V to +28V Operating Supply

The comparator output of the MAX4373/MAX4374/

MAX4375 is latched to provide a turn-off flag that

doesn’t oscillate. In addition, the MAX4374/MAX4375

contain a second comparator for use in window-detec-

tion functions. The MAX4373/MAX4374/MAX4375 are

available in three different gain versions (T = +20V/V,

F = +50V/V, H = +100V/V) and use an external sense

resistor to set the sensitivity of the input voltage to the

load current. These features offer a high level of inte-

gration, resulting in a simple and compact current-

sense solution.

• Latching Comparator Output Eliminates Oscillation

• Three Gain Versions (+20V/V, +50V/V,

+100V/V) Support Different Size Battery Packs

Ordering Information

PIN-

PACKAGE

GAIN

(V/V)

PART

TEMP RANGE

MAX4373TEUA+ -40°C to +85°C 8 µMAX

MAX4373TESA+ -40°C to +85°C 8 SO

MAX4373FEUA+ -40°C to +85°C 8 µMAX

MAX4373FESA+ -40°C to +85°C 8 SO

MAX4373HEUA+ -40°C to +85°C 8 µMAX

MAX4373HESA+ -40°C to +85°C 8 SO

+20

The MAX4373/MAX4374/MAX4375 operate from a sin-

gle +2.7V to +28V supply and consume 50µA. They are

specified for the extended operating temperature range

(-40°C to +85°C) and are available in 8-pin and 10-pin

µMAX® packages.

+50

+100

+Denotes a lead(Pb)-free/RoHS-compliant package.

Ordering Information continued at end of data sheet.

Applications

Notebook Computers

Typical Operating Circuit

Portable/Battery-Powered Systems

Smart Battery Packs/Chargers

Cell Phones

LOAD

+ V

SENSE

= 0 TO 28V

SENSE

LOAD/

BATTERY

RS+

RS-

Power-Management Systems

General-System/Board-Level Current Monitoring

Precision Current Sources

= 2.7V TO 28V

0.1µF

MAX4373

OUT

CIN

PULL-UP

(UP TO 5V)

COUT

RESET

µMAX is a registered trademark of Maxim Integrated Products, Inc.

GND

Pin Configurations appear at end of data sheet.

19-1630; Rev 5; 5/15

12 3 4 5 6 7...13

中文翻译

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与MAX4374相关器件

型号	品牌	获取价格	描述	数据表
MAX4374FESD	MAXIM	获取价格	Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4374FESD+T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO14, SO-14
MAX4374FESD-T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO14, SO-14
MAX4374FEUB	MAXIM	获取价格	Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4374FEUB+	MAXIM	获取价格	暂无描述
MAX4374FEUB+T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO10, MICRO MAX PACKAGE-10
MAX4374FEUB-T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO10, MICRO MAX PACKAGE-10
MAX4374HESD	MAXIM	获取价格	Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4374HESD+	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO14, ROHS COMPLIANT, SOIC-14
MAX4374HESD+T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO14, SO-14

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