MAX4375TESD

Overview

The MAX4375TESD+ 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 0V to +28V common-mode input range independent of VCC. The device provides a voltage output proportional to the sense resistor drop, eliminating external gain-setting resistors. It includes a latching comparator output for overcurrent protection and a second comparator for window detection functions.

Feature Summary

• Integrated high-side current-sense amplifier with internal bandgap reference
• Latching comparator output prevents oscillation during fault conditions
• Second comparator enables window-detection functionality
• Voltage output eliminates 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 'SD' corresponds to the 14-pin SO package in official documentation. Confirm RoHS compliance status indicated by the '+' symbol. Ensure the ordering code matches the required +20V/V gain version. Check that the temperature range aligns with system requirements.

Selection Notes

Select this part when window detection is required alongside standard current monitoring. The +20V/V gain suits applications requiring lower full-scale sense voltages. Verify that the 14-pin SO package fits the board layout constraints. Consider the 50µA supply current impact on overall system power budget.

Part Context

This component belongs to the MAX4373/MAX4374/MAX4375 family of high-side current-sense supervisors. Unlike the MAX4373 which has one comparator, this variant includes two comparators for advanced monitoring. It shares the same core amplifier architecture and power specifications as its siblings within the series.

Replacement Considerations

MAX4374TESD+ offers similar features but lacks the second comparator for window detection. MAX4373 variants provide only a single comparator output. Direct pin-compatible replacements within the same package type should be verified against specific gain and comparator count requirements.