MAX6427PTUR+T

Overview

The MAX6427PTUR+T is a low-power, single-level battery monitor from the Maxim Integrated family, housed in an SOT-23-3 surface-mount package. It operates within a supply voltage range of 1.6 V to 5.5 V and functions across a temperature range of -40°C to +85°C. The device provides a single low-battery output indicator with internal hysteresis to prevent output chatter during threshold transitions. It asserts the output when the monitored voltage drops below a specified low threshold and deasserts it after rising above a high threshold, following a minimum timeout period to ensure supply stabilization.

Feature Summary

• Provides a single low-battery output indicator for monitoring power supply conditions
• Features internal hysteresis to prevent output oscillation near threshold voltages
• Includes a minimum timeout period to ensure supply voltage stability before enabling system activity

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm RoHS compliance documentation matches the specific manufacturing lot. Validate that the SOT-23-3 package marking aligns with official datasheet specifications. Ensure storage conditions adhere to moisture sensitivity level requirements prior to reflow soldering.

Selection Notes

Select this component for applications requiring a simple, low-power solution for detecting depleted battery states. The single-output configuration is suitable for systems needing basic low-battery warnings rather than complex multi-stage management. Consider the operating voltage range and thermal characteristics to ensure compatibility with the target environment and power source constraints.

Part Context

This part belongs to the MAX6427–MAX6438 series of low-power battery monitors. These devices are designed to indicate three battery conditions: good, weak, or empty. The MAX6427 specifically offers a single low-battery output, distinguishing it from dual-output variants like the MAX6430 series within the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.