General Description

The MAX4373/MAX4374/MAX4375 low-cost, micropower, high-side current-sense supervisors contain a highside 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.

Features

♦Current-Sense Amplifier plus Internal Comparator and Bandgap Reference

♦50µA Supply Current

♦Single +2.7V to +28V Operating Supply

♦0.66 Full-Scale Accuracy

♦Internal Bandgap Reference

♦Latching Comparator Output

♦Three Gain Versions Available (+20V/V, +50V/V, +100V/V)

♦Wide 0 to +28V Common-Mode Range, Independent of Supply Voltage

Applications

Notebook Computers

Portable/Battery-Powered Systems

Smart Battery Packs/Chargers

Cell Phones

Power-Management Systems

General-System/Board-Level Current Monitoring

Precision Current Sources