MAX4375
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MAX4375

Low-Cost, Micropower, High-Side Current-Sense Amplifier + Comparator + Reference ICs

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Simplify Current Monitoring/Protection with One Tiny 10-Pin Package

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SPICE Model MAX4375T SPICE Macro Model Download 4.33KB SPICE Model MAX4375F SPICE Macro Model Download 4.32KB SPICE Model MAX4375H SPICE Macro Model Download 4.33KB
Part Models 12
1ku List Price Starting From $1.35
Features
  • 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 (±1.6% 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 +2.7V to +28V Operating Supply
  • Latching Comparator Output Eliminates Oscillation
  • Three Gain Versions (+20V/V, +50V/V, +100V/V) Support Different Size Battery Packs
Additional Details
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The MAX4373/MAX4374/MAX4375 low-cost, micropower, 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.

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-detection 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 integration, resulting in a simple and compact current-sense solution.

The MAX4373/MAX4374/MAX4375 operate from a single +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.

Applications

  • Cell Phones
  • General-System/Board-Level Current Monitoring
  • Notebook Computers
  • Portable Battery-Powered Systems
  • Power-Management Systems
  • Precision Current Sources
  • Smart Battery Packs/Chargers
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file View Data Sheet (Rev.5)
Documentation View All Documentation
SPICE Model MAX4375T SPICE Macro Model Download 4.33KB SPICE Model MAX4375F SPICE Macro Model Download 4.32KB SPICE Model MAX4375H SPICE Macro Model Download 4.33KB
Part Models 12
1ku List Price Starting From $1.35
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MAX4375

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Data Sheet

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UPDATED 05/21/2015
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MAX4373-MAX4375: Low-Cost, Micropower, High-Side Current-Sense Amplifier + Comparator + Reference ICs Data Sheet (Rev.5)

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UPDATED 01/01/1900
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2204: 低成本、微功耗、高边电流检测放大器 + 比较器 + 电压基准IC Data Sheet

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UPDATED 01/06/2011
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MAX4373-MAX4375_jp: 低コスト、マイクロパワー、ハイサイド電流検出アンプ + コンパレータ + リファレンスIC Data Sheet (Rev.3)

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Reliability Data

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UPDATED 01/12/2023
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UPDATED 07/08/2004
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UPDATED 06/01/2001
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Documentation

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX4375FESD+ Small-Outline IC, Narrow (0.15in) external-link
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MAX4375FESD+T Small-Outline IC, Narrow (0.15in) external-link
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MAX4375HESD+T Small-Outline IC, Narrow (0.15in) external-link
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MAX4375HEUB+ 10-MINI_SO-N/A external-link
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MAX4375HEUB+T 10-MINI_SO-N/A external-link
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MAX4375TESD+ Small-Outline IC, Narrow (0.15in) external-link
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MAX4375TESD+T Small-Outline IC, Narrow (0.15in) external-link
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MAX4375TEUB+ 10-MINI_SO-N/A external-link
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Aug 18, 2021

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MAX4375FESD+

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MAX4375FESD+T

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MAX4375HESD+

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MAX4375TESD+

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Evaluation Kit

Evaluation Kits 1

MAX4374EVKIT

Evaluation Kit for the MAX4374

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MAX4374EVKIT

Evaluation Kit for the MAX4374

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MAX4374EVKIT
Evaluation Kit for the MAX4374

Features and Benefits

  • Precision Real-Time Current Monitoring
  • Overcurrent Protection and Reset Circuits
  • Overvoltage Indicator Circuit
  • 0 to 28V Input Common-Mode Range
  • 50µA Supply Current
  • 1mV (max) Input Offset Voltage
  • 2% (max) Full-Scale Accuracy
  • Lead(Pb)-Free and RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested
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Product Detail

The MAX4374 evaluation kit (EV kit) provides a proven design to evaluate the MAX4374 low-cost, micropower, high-side current-sense supervisor that contains a high-side current-sense amplifier, bandgap reference, and comparator with latching output. This EV kit demonstrates the MAX4374 in a 10-pin µMAX® package. The MAX4374 is also available in 14-pin SO, but that package is not compatible with this EV kit.

The MAX4374 EV kit PCB comes with a MAX4374FEUB+ installed, which is the 50V/V gain version. The MAX4374 EV kit can also be used to evaluate the MAX4374T (20V/V gain version), MAX4374H (100V/V gain version), MAX4375T (20V/V gain version), MAX4375F (50V/V gain version), and MAX4375H (100V/V gain version). Contact the factory for free samples of the pin-compatible MAX4374TEUB+, MAX4374HEUB+, MAX4375TEUB+, MAX4375FEUB+, or MAX4375HEUB+ devices.

Applications

  • Cell Phones
  • General-System/Board-Level Current Monitoring
  • Notebook Computers
  • Portable Battery-Powered Systems
  • Power-Management Systems
  • Precision Current Sources
  • Smart Battery Packs/Chargers

Evaluation Kits1

MAX4374EVKIT

Evaluation Kit for the MAX4374

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