MAX4374TESD+T

Overview

The MAX4374TESD+T is a low-cost, micropower high-side current-sense supervisor integrating a current-sense amplifier, bandgap reference, and comparator with latching output. It operates from a single +2.7V to +28V supply with 50µA typical supply current. The device features a +20V/V gain, 0V to +28V common-mode input range independent of supply voltage, and an operating temperature range of -40°C to +85°C. It is housed in a 14-pin SO package.

Feature Summary

• Integrates a high-side current-sense amplifier, internal bandgap reference, and comparator with latching output for simplified monitoring.
• Features a second comparator to enable window-detection functions for precise current threshold management.
• Provides a voltage output that eliminates the need for external gain-setting resistors.
• Operates with a common-mode input range of 0V to +28V, ensuring functionality even during deep battery discharge.

Applications

• Notebook Computers
• Portable/Battery-Powered Systems
• Smart Battery Packs/Chargers
• Cell Phones
• Power-Management Systems

Procurement Notes

Verify the specific suffix 'SD' corresponds to the 14-pin SOIC package and '+T' indicates tape-and-reel packaging. Confirm RoHS compliance status via official documentation. Ensure the ordering code matches the required +20V/V gain variant within the MAX4374 family. Cross-reference pinout configurations against the datasheet to prevent integration errors.

Selection Notes

Select this component when high-side current monitoring is required without interfering with the ground path. The integrated latching comparator prevents oscillation during overcurrent events. The +20V/V gain suits applications requiring lower sensitivity compared to +50V/V or +100V/V variants. Verify that the system supply voltage remains within the 2.7V to 28V operational limits.

Part Context

This part belongs to the MAX4373/MAX4374/MAX4375 family of micropower supervisors. The MAX4374 specifically includes two comparators for window detection, unlike the MAX4373 which has one. These devices are designed for battery-powered systems where power consumption and compact solutions are critical.

Replacement Considerations

MAX4374FEUB+, MAX4374HEUB+, MAX4374FESD+, MAX4374HESD+