MAX6431ORUS+T

Overview

The MAX6431ORUS+T is a low-power, dual-level battery monitor from the Maxim Integrated MAX6427–MAX6438 family. It features two independent low-battery output indicators to signal three distinct battery states: good, weak, and empty. The device utilizes internal hysteresis to prevent output chatter during voltage transitions. When the supply voltage drops below the specified low threshold, the output asserts; it deasserts when the voltage rises above the high threshold following a minimum 140ms timeout period. This timeout ensures supply stabilization before enabling power-converter or microprocessor activity.

Feature Summary

• Dual-channel monitoring capability for indicating multiple battery conditions
• Internal hysteresis mechanism prevents output instability
• Minimum 140ms timeout period ensures voltage stabilization
• Supports operation in normal, low-power, and disabled system modes

Applications

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

Procurement Notes

Verify the specific suffix ORUS against the manufacturer's official documentation to confirm package type and tape-and-reel configuration. Ensure the component meets RoHS compliance requirements as indicated by the plus (+) designation. Cross-reference the full part number with Analog Devices Inc./Maxim Integrated databases to confirm availability of the exact revision and manufacturing lot specifications.

Selection Notes

Select this component when dual independent thresholds are required to manage system power states based on battery health. It is suitable for applications needing clear distinction between operational, warning, and critical battery levels. Consider the internal hysteresis and fixed timeout characteristics for simplified circuit design without external components for debounce or delay functions.

Part Context

This device belongs to the MAX6427–MAX6438 series of low-power battery monitors. The series offers both single and dual-output variants to accommodate different monitoring complexity needs. These ICs are designed for portable electronics requiring efficient power management through precise voltage supervision and state indication.

Replacement Considerations

Other members of the MAX6427–MAX6438 family may serve as substitutes depending on channel count and threshold requirements. Verify pin compatibility and electrical specifications before substitution.