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Product Detailed Parameters
- Description：IC BATT MON MULT-CHEM 1C SOT23-8
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Function：Battery Monitor
- Battery Chemistry：Multi-Chemistry
- Number of Cells：1
- Fault Protection：-
- Interface：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8
- Supplier Device Package：SOT-23-8
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Overview
The MAX6846KAWD3 is a low-power, adjustable battery monitor with hysteresis and an integrated microprocessor reset supervisor. It operates from 1.6V to 5.5V in an SOT-23-8 package. The device monitors system voltages (VCC) from 1.8V to 3.3V. It features user-adjustable battery threshold voltages to prevent chattering due to battery recovery. The single low-battery output is open-drain. When voltage drops below the adjusted low threshold, the output asserts; when it rises above the high threshold, outputs deassert after a minimum 150ms timeout.
Feature Summary
- User-adjustable battery threshold voltages provide wide hysteresis range to prevent chattering caused by battery recovery after load removal.
- Integrated microprocessor supervisor monitors VCC and provides an active-low reset output with manual reset function via pushbutton.
- Single open-drain low-battery output signals when battery is OK, low, or dead for appropriate system operation modes.
Applications
- Single-cell lithium-ion battery monitoring
- Multicell alkaline battery systems
- NiCd/NiMH battery management applications
Procurement Notes
Verify component authenticity through authorized channels as this part may be discontinued or have limited availability. Check datasheet revisions and ordering suffixes carefully. Confirm RoHS compliance status and environmental certifications before procurement. Ensure supply chain sources are legitimate to avoid counterfeit components.
Selection Notes
Select this component for applications requiring adjustable battery monitoring with hysteresis. Consider the single low-battery output configuration versus dual-output variants like MAX6848/MAX6849 if additional thresholds are needed. Verify operating temperature range requirements against -40°C to +85°C specification.
Part Context
Part of the MAX6846-MAX6849 family of ultra-low-power battery monitors with integrated µP supervisors. These devices offer user-adjustable thresholds for flexible battery management across various chemistries including Li+, alkaline, NiCd, and NiMH batteries.
Replacement Considerations
MAX6847KASD3+T offers similar functionality with dual low-battery outputs instead of single output. MAX6848KASD3+T and MAX6849KASD3+T provide dual low-battery outputs for more complex threshold requirements. Verify pin compatibility and electrical specifications before substitution.
