MAX4374TEUB-T

Overview

The MAX4374TEUB-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 a typical supply current of 50µA. The device features a +20V/V gain version (suffix T) and supports an input common-mode range of 0V to +28V independent of the supply voltage. It includes a second comparator for window-detection functions and is specified for operation within an extended temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-side current-sense amplifier, internal bandgap reference, and dual comparators into a compact solution.
• Features a latching comparator output that provides a stable turn-off flag without oscillation during overcurrent events.
• Includes a second comparator specifically designed to enable precise window-detection applications.
• Operates with a wide 0V to +28V common-mode input range that remains functional even during deep battery discharge.

Applications

• Notebook computers
• Portable and battery-powered systems
• Smart battery packs and chargers
• Cell phones
• Precision current sources

Procurement Notes

Verify the specific suffix 'T' confirms the +20V/V gain configuration required for your circuit design. Confirm the 'EUB' package designation matches the 10-pin µMAX footprint needed for your board layout. Ensure the '-T' trailing character aligns with your preferred tape-and-reel procurement method rather than tube packaging. Cross-reference the manufacturer's latest ordering guide to confirm availability status before finalizing component selection.

Selection Notes

Select this part when a high-side monitoring solution with integrated latching protection is required. The +20V/V gain is suitable for applications requiring lower output voltages relative to the sense resistor drop. Consider the MAX4375 variant if the inverted logic polarity of the second comparator is preferred for your window detection scheme. Verify that the external sense resistor power dissipation capabilities meet the maximum load current requirements.

Part Context

This component belongs to the MAX4373/MAX4374/MAX4375 family of supervisors. The MAX4374 specifically distinguishes itself by offering two comparators for window detection, whereas the MAX4373 offers only one. The TEUB suffix indicates a +20V/V gain in a 10-pin µMAX package. This family eliminates the need for external gain-setting resistors through its internal voltage output architecture.

Replacement Considerations

The MAX4373TEUA+ serves as a functional substitute if only a single comparator is required. For identical dual-comparator functionality, verify the MAX4375 series for potential pin-compatible alternatives depending on the desired comparator logic polarity.