MAX9039BEBT+T

Overview

The MAX9039BEBT+T is a micropower, single-supply analog comparator integrated with a precision voltage reference. It operates within a supply voltage range of 2.5V to 5.5V and consumes only 40μA of quiescent supply current. The device features a single comparator channel with an open-drain output capable of sinking up to 8mA. It includes internal hysteresis of ±3mV and offers a propagation delay of 400ns. The integrated voltage reference provides a fixed output of 1.23V with an initial accuracy of ±0.4% and a temperature coefficient of 100ppm/°C. The component is housed in a 6-pin UCSP package.

Feature Summary

• Integrates a low-power comparator with a precision voltage reference in a compact UCSP package
• Features rail-to-rail inputs and outputs with extended common-mode input voltage range
• Includes internal hysteresis to ensure clean switching for slow-moving signals
• Open-drain output stage designed to limit supply current surges during transitions

Applications

• Precision battery management systems
• Window comparator circuits
• IR receivers
• Level translators
• Digital line receivers

Procurement Notes

Verify the specific B grade designation and EB suffix against the manufacturer's latest ordering information to confirm pinout and electrical tolerances. Ensure the UCSP-6 package footprint matches the design layout requirements. Confirm RoHS compliance status as indicated by the plus sign in the part number before finalizing procurement specifications.

Selection Notes

Select this component when a single-channel comparator with an integrated reference is required in space-constrained designs. The open-drain output is suitable for logic-level translation applications. Consider the 400ns propagation delay and 40μA current consumption for power-sensitive or moderate-speed signal processing tasks. Verify that the 1.23V reference meets the threshold requirements of the target application.

Part Context

This device belongs to the MAX9038–MAX9043 series of micropower comparators with precision references. It shares architectural similarities with other members of the family but is distinguished by its single comparator configuration, open-drain output, and 1.23V reference voltage. The UCSP package allows for high-density board layouts compared to standard SOT23 options.

Replacement Considerations

The MAX9038EBT+T serves as a direct substitute, differing primarily in having a push-pull output instead of open-drain. Other family members like the MAX9040 offer different reference voltages.