MAX4373TEUA+TG05

Overview

The MAX4373TEUA+TG05 is a low-cost, micropower high-side current-sense supervisor featuring an integrated amplifier, comparator with latching output, and bandgap reference. It operates from a single +2.7V to +28V supply with a 0 to +28V input common-mode range independent of VCC. The device provides a voltage output eliminating external gain-setting resistors. Key electrical parameters include a maximum input offset voltage of 1mV, full-scale accuracy of 2%, and a typical supply current of 50µA. It supports gains of +20V/V, +50V/V, or +100V/V and functions within an extended temperature range of -40°C to +85°C.

Feature Summary

• Integrated high-side current-sensing solution simplifies monitoring without requiring external gain-setting resistors
• Latching comparator output prevents oscillation during overcurrent shutdown events
• Operates effectively in deep discharge conditions due to common-mode range extending down to 0V

Applications

• Notebook computers
• Portable and battery-powered systems
• Smart battery packs and chargers
• Cell phones
• Power-management systems

Procurement Notes

Verify the specific suffix TG05 against official manufacturer documentation to confirm its exact meaning regarding tape-and-reel specifications or environmental compliance. Ensure the ordering part number matches the required gain version (+20V/V, +50V/V, or +100V/V) as indicated by the base model code. Confirm package type compatibility for the 8-pin µMAX footprint.

Selection Notes

Select this component when high-side current monitoring is required in battery-operated devices where ground path interference must be avoided. Choose based on the necessary gain setting to match the expected load current and sense resistor value. Consider the latching comparator feature if system protection requires a stable shutdown signal without oscillation.

Part Context

This device belongs to the MAX4373/MAX4374/MAX4375 family of micropower current-sense supervisors. While the MAX4373 features a single comparator, the MAX4374 and MAX4375 variants include an additional comparator for window detection functions. All members share the same core amplifier architecture and power characteristics.

Replacement Considerations

Direct replacements within the same family include MAX4373TESA+, MAX4373FEUA+, and MAX4373HEUA+. Verify that any substitute maintains the required gain configuration and package dimensions.