MAX4374HEUB+TG05

Overview

The MAX4374HEUB+TG05 is a low-cost, micropower high-side current-sense supervisor featuring an integrated amplifier, comparator, and bandgap reference. It operates from a single +2.7V to +28V supply with a 50µA typical supply current. The device provides a voltage output proportional to the sense resistor voltage drop, eliminating external gain-setting resistors. It features a +100V/V gain version (suffix H) and includes two comparators for window-detection functions. The input common-mode range extends from 0V to +28V, independent of the supply voltage.

Feature Summary

• Integrated high-side current-sense amplifier with internal bandgap reference
• Dual open-drain comparators enabling window-detection functionality
• Latching comparator output prevents oscillation during overcurrent events
• Voltage output eliminates the need for external gain-setting resistors

Applications

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

Procurement Notes

Verify the specific suffix 'TG05' against official manufacturer documentation, as standard datasheets list 'U10+2' for the 10-pin µMAX package. Confirm RoHS compliance status indicated by the '+' symbol. Ensure the ordering code matches the exact temperature range and gain specifications required for your design.

Selection Notes

Select this component when dual-comparator window detection is required alongside high-side current monitoring. The +100V/V gain is suitable for applications requiring higher sensitivity with smaller sense resistors. Verify that the system supply voltage remains within the +2.7V to +28V operational range and that the common-mode voltage does not exceed +28V.

Part Context

This part belongs to the MAX4373/MAX4374/MAX4375 family of low-cost, micropower current-sense supervisors. The MAX4374 variant specifically distinguishes itself by including a second comparator for window-detection capabilities, unlike the MAX4373 which has only one. The HEUB+ designation indicates a +100V/V gain, 10-pin µMAX package, and lead-free/RoHS compliance.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.