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Maxim产品 - MAX4374介绍

MAX4374 - 低成本、微功耗、高边电流检测放大器 + 比较器 + 电压基准IC

MAX4374是Maxim美信半导体公司的一款放大器产品，MAX4374是低成本、微功耗、高边电流检测放大器 + 比较器 + 电压基准IC，本站介绍了MAX4374的封装应用图解、特点和优点、功能等，并给出了与MAX4374相关的Maxim元器件型号供参考。

MAX4374 - 低成本、微功耗、高边电流检测放大器 + 比较器 + 电压基准IC - 放大器 - 简便的电流监测/保护电路，采用微小的10引脚封装 - 美信半导体

产品概述

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.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Integrated Current-Sensing Solution Simplifies High-Side Current Monitoring
  • Current-Sense Amplifier plus Internal Comparatorand 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
    • 热门应用
  • 蜂窝电话
  • 通用系统/板级电流监视
  • 笔记本电脑
  • 便携式电池供电系统
  • 电源管理系统
  • 精密电流源
  • 智能电池组/充电器
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