MAX6846KAWD3-T

Overview

The MAX6846KAWD3-T is a low-power, adjustable battery monitor with hysteresis and an integrated microprocessor reset supervisor. It operates from a supply voltage of 1.6 V to 5.5 V within an industrial temperature range of -40°C to +85°C. The device is housed in an SOT-23-8 package. It features user-adjustable thresholds for monitoring single-cell lithium-ion or multicell alkaline/NiCd/NiMH batteries, providing open-drain outputs to signal battery status.

Feature Summary

• Provides user-adjustable battery threshold voltages with wide hysteresis to prevent output chattering during battery recovery after load removal.
• Integrates an independent microprocessor supervisor that monitors system voltage (VCC) and provides an active-low reset output.
• Includes a manual reset function accessible via a pushbutton to reset the microprocessor.

Applications

• Single-cell lithium-ion battery monitoring systems
• Multicell alkaline, NiCd, or NiMH battery management applications
• Low-power portable electronic devices requiring battery status alerts

Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to discontinuation notices. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions comply with moisture sensitivity level requirements before reflow soldering. Cross-reference datasheet revisions to confirm electrical characteristics match design specifications.

Selection Notes

Select this component when designing circuits requiring precise, user-defined battery depletion levels with noise immunity. The integrated supervisor simplifies system protection by combining battery monitoring and CPU reset functions in a single compact package. Suitable for space-constrained designs needing reliable power management without external discrete components.

Part Context

Part of the MAX6846–MAX6849 family of ultra-low-power battery monitors. The MAX6846 specifically offers a single low-battery output option, distinguishing it from dual-output variants like the MAX6848. Manufactured by Analog Devices Inc./Maxim Integrated, it serves as a dedicated power management IC for portable electronics.

Replacement Considerations

Check for official discontinuation notifications. Verify if MAX6847KASD3+T or other family members meet specific output configuration needs. Ensure substitute parts maintain compatible operating voltage ranges and package dimensions for direct board replacement.