MAX6441KAEISD3

Overview

The MAX6441KAEISD3 is a low-power single battery monitor from the MAX6439–MAX6442 family, housed in an SOT-23-8 package. It operates within a supply voltage range of 1 V to 5.5 V and functions across a temperature range of -40°C to +85°C. This component features factory-trimmed thresholds with a reset threshold of 2.925 V and battery hysteresis levels set at 3.5 V (high) and 3.0 V (low). Designed for power supply support, it integrates microprocessor supervision without requiring external components.

Feature Summary

• Integrates microprocessor supervisor with active-low reset output
• Provides dual low-battery output options for system status signaling
• Includes manual reset function accessible via push-button
• Features factory-trimmed thresholds with hysteresis to prevent chattering

Applications

• Single-cell lithium-ion battery monitoring systems
• Multicell alkaline or NiCd/NiMH battery management
• Low-power system operation alerts
• Microprocessor reset timing circuits

Procurement Notes

Verify RoHS compliance status carefully as specific suffixes may indicate leaded variants. Confirm package integrity and pinout alignment with SOT-23-8 specifications. Ensure operating temperature ranges meet application requirements. Cross-reference datasheet revision dates for accurate electrical characteristics. Validate supplier authenticity through authorized channels.

Selection Notes

Choose this device when fixed threshold accuracy is required without external trimming. Ideal for space-constrained designs utilizing SOT-23-8 packaging. Suitable for applications needing distinct low-battery and dead-battery signals. Consider thermal performance limits when selecting for high-temperature environments. Verify compatibility with system voltage rails before integration.

Part Context

Part of the MAX6439–MAX6442 ultra-low-power battery monitor family. Shares common architectural features including integrated µP supervision and hysteresis. Differentiated by specific factory-trimmed voltage thresholds and package configuration. Functions as a power management IC supporting single-cell and multicell battery architectures.

Replacement Considerations

Consult official Analog Devices substitution lists for verified equivalents. Check threshold voltage compatibility when replacing with similar models. Verify package footprint matching for direct board replacement. Ensure functional parity in reset timing and hysteresis characteristics.