MAX4374FESD+

Overview

The MAX4374FESD+ 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 a typical supply current of 50µA. The device features a +50V/V gain version, a 0 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 independent of the supply voltage, ensuring functionality 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 'F' indicates the +50V/V gain configuration and 'SD' denotes the 14-SOIC package. Confirm RoHS compliance status via the '+' designation. Ensure the component matches the Analog Devices/Maxim Integrated manufacturer origin. Cross-reference the datasheet revision history for any updates to electrical characteristics or pin configurations before final integration.

Selection Notes

Select this part when a +50V/V gain is required for the specific load current range. The dual-comparator architecture supports window detection applications. Verify that the system supply voltage falls within the +2.7V to +28V operational range. Consider the 14-pin SO package dimensions for PCB layout constraints. Ensure the RESET pin logic requirements align with the system's power-up sequence to prevent false latching.

Part Context

This component belongs to the MAX4373/MAX4374/MAX4375 family of low-cost, micropower high-side current-sense supervisors. The family differentiates by the number of comparators: MAX4373 has one, while MAX4374 and MAX4375 include two for window detection. Gain variations are designated by suffixes T (+20V/V), F (+50V/V), and H (+100V/V).

Replacement Considerations

MAX4374TEUB+, MAX4374HEUB+, MAX4374TESD+, MAX4374HESD+