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MAX4372, MAX4372F, MAX4372H, MAX4372T：低成本、UCSP/SOT23封装、微功耗、高边电流检测放大器，带有电压输出

The MAX4372 low-cost, precision, high-side current-sense amplifier is available in a tiny, space-saving SOT23 5-pin package. Offered in three gain versions (T = 20V/V, F = 50V/V, and H = 100V/V), this device operates from a single 2.7V to 28V supply and consumes only 30µA. It features a voltage output that eliminates the need for gain-setting resistors and is 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 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 2-cell battery pack in deep discharge. The user can set the full-scale current reading by choosing the device (T, F, or H) with the desired voltage gain and selecting the appropriate external sense resistor. This capability offers a high level of integration and flexibility, resulting in a simple and compact current-sense solution. For higher bandwidth applications, refer to the MAX4173T/F/H data sheet.

关键特性 Low-Cost, Compact Current-Sense Solution 30µA Supply Current 2.7V to 28V Operating Supply 0.18% Full-Scale Accuracy 0.3mV Input Offset Voltage Low 1.5Ω Output Impedance Three Gain Versions Available 20V/V (MAX4372T) 50V/V (MAX4372F) 100V/V (MAX4372H) High Accuracy +2V to +28V Common-Mode Range, Functional Down to 0V, Independent of Supply Voltage Available in a Space-Saving 5-Pin SOT23 Package and 3 x 2 UCSP™ (1mm x 1.5mm) Package

MAX4372、MAX4372F、MAX4372H、MAX4372T：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 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

• MAX9928EVKIT

技术资料

• High-Accuracy Current-Sense Amplifier Enables Current Sensing and Current Sharing

质量和环境数据

• MAX4372.pdf
• MAX4372H.pdf
• MAX4372F.pdf
• MAX4372T.pdf

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