MAX6429DGUR+T

Overview

The MAX6429DGUR+T is a low-power, single-level battery monitor from the Maxim Integrated family. It operates within a supply voltage range of 1.6 V to 5.5 V and is housed in a compact SOT-23-3 surface-mount package. Designed for monitoring single lithium-ion cells or multicell alkaline/NiCd/NiMH power supplies, it asserts a low-battery output when the supply drops below a specified threshold. The device incorporates internal hysteresis and a minimum timeout period to ensure supply stabilization before enabling system activity.

Feature Summary

• Provides a single low-battery output indicator to signal weak battery conditions
• Features internal hysteresis to prevent output oscillation during voltage transitions
• Includes a minimum timeout period to allow supply voltages to stabilize before asserting the output

Applications

• Monitoring single lithium-ion (Li+) cells
• Monitoring multicell alkaline power supplies
• Monitoring NiCd/NiMH power supplies

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm that the specific suffix corresponds to the intended package and temperature rating. Review the official datasheet for precise electrical characteristics and handling instructions prior to integration into final designs.

Selection Notes

Select this component for applications requiring simple, low-power battery status indication. It is suitable for systems needing to distinguish between good, weak, and empty battery states without complex monitoring circuitry. Ensure the operating voltage range aligns with the target battery chemistry and system requirements.

Part Context

This part belongs to the MAX6427–MAX6438 series of single/dual-level battery monitors. These devices are designed to indicate three battery conditions: good, weak, or empty. The series supports various monitoring options for different battery types and configurations, providing a standardized solution for power management in portable electronics.

Replacement Considerations

Compatible substitutes within the same family include the MAX6427 and MAX6428, which offer similar single-level monitoring capabilities. Verify pinout compatibility and threshold specifications when considering these alternatives.