MAX6429EHUR

Overview

The MAX6429EHUR+ is a low-power, single-level battery monitor with internal hysteresis manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of 1.5V to 6V and provides a push-pull Low Battery Output (LBO). The device features a factory-trimmed low threshold of 2.8V and a high threshold of 3.0V, ensuring accurate detection of battery depletion states without requiring external components.

Feature Summary

• Integrates internal hysteresis to prevent output oscillation during voltage transitions near the threshold.
• Provides a guaranteed valid logic state down to a supply voltage of 1.0V.
• Includes a minimum timeout period to ensure supply voltages stabilize before enabling system activity.

Applications

• Monitoring single lithium-ion cells in portable devices
• Indicating weak battery conditions for multicell alkaline power supplies
• Managing NiCd/NiMH battery systems in consumer electronics

Procurement Notes

Verify the specific suffix 'H' against official documentation to confirm the exact threshold configuration, as variations exist within the family. Confirm RoHS compliance status and check for End-of-Life notifications prior to finalizing procurement plans.

Selection Notes

Select this component when a fixed, factory-trimmed threshold is required to simplify design. It is suitable for applications needing reliable low-battery indication with minimal external circuitry compared to adjustable alternatives.

Part Context

This part belongs to the MAX6427–MAX6438 family of battery monitors. These devices are designed to indicate three battery conditions: good, weak, or empty, facilitating appropriate system mode switching in battery-powered equipment.

Replacement Considerations

Compatible substitutes include other members of the MAX6427–MAX6438 series with matching thresholds and package types, such as MAX6429EJUR+ or MAX6429EKUR+, subject to pinout and electrical specification verification.