• 简体中文
• English

MAX4173F, MAX4173H, MAX4173T：低成本、SOT23封装、电压输出、高边电流检测放大器

The MAX4173 low-cost, precision, high-side current-sense amplifier is available in a tiny SOT23-6 package. It features a voltage output that eliminates the need for gain-setting resistors and it is ideal for today's notebook computers, cell phones, and other systems where 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 input common-mode range of 0 to +28V is independent of the supply voltage and ensures that the current-sense feedback remains viable even when connected to a battery in deep discharge. The MAX4173's wide 1.7MHz bandwidth makes it suitable for use inside battery charger control loops. The combination of three gain versions and a user-selectable external sense resistor sets the full-scale current reading. This feature offers a high level of integration, resulting in a simple and compact current-sense solution. The MAX4173 operates from a single +3V to +28V supply, typically draws only 420µA of supply current over the extended operating temperature range (-40°C to +85°C), and is offered in the space-saving SOT23 package.

关键特性 Low-Cost, Compact Current-Sense Solution High Accuracy +2V to +28V Common-Mode Range, Functional Down to 0V, Independent of Supply Voltage Three Gain Versions Available +20V/V (MAX4173T) +50V/V (MAX4173F) +100V/V (MAX4173H) ±0.5% Full-Scale Accuracy ±3mV Input Offset Voltage (MAX4173T) Wide 1.7MHz Bandwidth (MAX4173T) 420µA Supply Current Available in Space-Saving SOT23 Package

MAX4173F、MAX4173H、MAX4173T：典型工作电路 应用 蜂窝电话 通用系统/板级电流监视 笔记本电脑 PA偏置控制 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

数据手册DataSheet

关键参数

开发工具

• MAX4173EVKIT

质量和环境数据

• MAX4173T.pdf
• MAX4173H.pdf
• MAX4173F.pdf

订购型号