MAX6429MRUR+T

Overview

The MAX6429MRUR+T is a low-power, single-level battery monitor from the MAX6427–MAX6438 family. It operates within a supply voltage range of 1.6 V to 5.5 V and is housed in an SOT-23-3 surface-mount package. The device provides a factory-trimmed low-battery output indicator with internal hysteresis to prevent false triggering. It features a minimum timeout period of 140ms to ensure supply voltage stabilization before system activity is enabled. The component supports operation across temperatures from -40°C to +85°C.

Feature Summary

• Provides a single low-battery output indicator for monitoring power supply conditions
• Includes internal hysteresis to maintain stable logic states during voltage fluctuations
• Features a minimum timeout period to ensure supply voltages stabilize before enabling system activity

Applications

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

Procurement Notes

Verify the specific suffix MRUR against the official datasheet to confirm the exact threshold voltage and packaging configuration. Confirm RoHS compliance status as detailed in the manufacturer's documentation. Check current availability status, as this part may be subject to discontinuation or limited supply constraints.

Selection Notes

Select this component when a single low-battery warning is sufficient for system management. Choose this part over dual-output variants if only normal, low-power, and disabled modes are required. Ensure the fixed factory-trimmed threshold aligns with the specific battery chemistry and cutoff requirements of the application design.

Part Context

This device 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 series offers both factory-trimmed and user-adjustable threshold options in small SOT-23 packages, suitable for portable electronics requiring efficient power management.

Replacement Considerations

Other members of the MAX6427–MAX6438 family share similar functionality but differ in threshold settings or output configurations. Verify pin compatibility and electrical specifications before substituting with other parts in this series.