MAX6847KASD3

Overview

The MAX6847KASD3+T is a low-power, adjustable battery monitor with an integrated microprocessor reset supervisor. It operates within a supply voltage range of 1.6 V to 5.5 V and features an SOT-23-8 package. The device monitors battery levels with user-adjustable thresholds and includes hysteresis to prevent output chatter. It provides active-low reset outputs for both battery status and microprocessor supervision, supporting manual reset functionality via an external pushbutton.

Feature Summary

• Integrates adjustable battery monitoring with independent microprocessor reset supervision in a single component
• Features user-adjustable low-battery thresholds with built-in hysteresis to ensure stable signal transitions
• Supports manual reset input for direct microprocessor control via external pushbutton

Applications

• Single-cell lithium-ion battery management systems
• Multicell alkaline or NiCd/NiMH battery packs
• Low-power portable electronic devices requiring battery level indication
• Microprocessor systems needing combined power supervision and reset generation

Procurement Notes

Verify the complete part number including suffixes such as +T for tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation. Check current availability as supply may be limited or subject to discontinuation notices. Ensure the selected variant matches the required package type and electrical specifications for the target application design.

Selection Notes

Choose this component when designing systems that require both battery health monitoring and CPU reset supervision. The adjustable thresholds allow customization for specific battery chemistries. Consider the SOT-23-8 package size for space-constrained layouts. Verify that the operating voltage range aligns with the system's power supply architecture and that the manual reset feature meets the system's recovery requirements.

Part Context

The MAX6847 belongs to the MAX6846–MAX6849 family of ultra-low-power battery monitors. These devices are designed to replace multiple discrete components by integrating battery monitoring, hysteresis, and microprocessor reset functions. The family supports various output configurations and threshold adjustments to accommodate different battery types and system architectures.

Replacement Considerations

Public confirmed substitute part numbers: MAX6846KASD3+T, MAX6848KASD3+T, MAX6849KASD3+T.