MAX6429FIUR+T

Overview

The MAX6429FIUR+T is a low-power, single-level battery monitor with internal hysteresis from the Maxim Integrated family. It monitors supply voltages and asserts a low-battery output when the voltage drops below a specified threshold. The device features a minimum timeout period to ensure supply stabilization before enabling power-converter or microprocessor activity. It is designed for monitoring single lithium-ion cells or multicell alkaline/NiCd/NiMH power supplies. The component operates within a wide temperature range and is available in small surface-mount packages.

Feature Summary

• Provides single low-battery output indication for battery conditions
• Includes internal hysteresis to prevent output chatter
• Features a minimum timeout period for supply stabilization

Applications

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

Procurement Notes

Verify the specific suffix 'FIUR' against official manufacturer documentation to confirm exact threshold voltage and package configuration. Ensure compatibility with system voltage requirements and thermal specifications. Confirm RoHS compliance status through current datasheets. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Validate that the ordering code matches the intended factory-trimmed threshold options.

Selection Notes

Select this component when a single low-battery indicator is sufficient for system management. Consider the internal hysteresis and timeout features for noise immunity and stability. Evaluate the low-power consumption characteristics for battery-operated applications. Compare threshold options against system voltage rails to ensure accurate detection. Verify package availability and mounting requirements for the design.

Part Context

This part belongs to the MAX6427–MAX6438 family of single/dual-level battery monitors. The family offers both factory-trimmed and user-adjustable threshold options. Devices in this series are designed to indicate three battery conditions: good, weak, or empty. They are suitable for portable electronics requiring efficient power management and reliable battery status reporting.

Replacement Considerations

Other members of the MAX6427–MAX6438 family may serve as replacements if threshold levels and output configurations match. Verify pinout compatibility and electrical specifications before substitution. Check for updated revisions or alternative packages from the manufacturer.