MAX6440UTFJTD7

Overview

The MAX6440UTFJTD7+T is a single-battery monitor from the MAX6439–MAX6442 family, designed for ultra-low-power applications. It operates within a supply voltage range of 1 V to 5.5 V and features an integrated microprocessor supervisor with an active-low reset output. The device provides dual low-battery outputs to signal battery status levels, enabling system operation control based on voltage thresholds. It utilizes a SOT-23-6 surface-mount package and supports manual reset functionality via a push-button input without requiring external components.

Feature Summary

• Integrates microprocessor supervisor with active-low reset output
• Provides dual low-battery outputs for multi-level status signaling
• Supports manual reset function via push-button input
• Operates without external components

Applications

• Single-cell lithium-ion battery monitoring
• Multicell alkaline battery systems
• NiCd/NiMH battery management
• Microprocessor power supply supervision

Procurement Notes

Verify the specific suffix code against official Analog Devices documentation to confirm factory-trimmed threshold voltages and reset timeout periods. Confirm RoHS compliance status as indicated in the datasheet. Ensure the ordering part number matches the required package variant and temperature range specifications before procurement.

Selection Notes

Select this component when fixed low-battery thresholds are sufficient for the application. Verify that the factory-trimmed voltage levels align with the specific battery chemistry requirements. Consider the integrated reset timeout options if precise timing is necessary for the microprocessor initialization sequence.

Part Context

This device belongs to the MAX6439–MAX6442 family of battery monitors. These parts are characterized by their ability to monitor battery health and provide system control signals. The family offers various threshold combinations optimized for different battery types, ensuring reliable operation across diverse portable electronic environments.

Replacement Considerations

Cross-reference with other MAX6440 variants having compatible SOT-23-6 packaging. Verify that alternative part numbers offer matching low-battery threshold values and reset timeout characteristics to ensure functional equivalence in the existing circuit design.