DS276N

Overview

The DS276N is a single-cell lithium-ion battery monitor manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.5 V to 5.5 V and features an integrated 1-Wire interface for communication. The device provides precise monitoring of cell voltage and current, utilizing an internal coulomb counter to track charge levels. It supports operation across a temperature range of -40°C to +85°C and is housed in an 8-pin SOIC package.

Feature Summary

• Integrates a high-precision coulomb counter for accurate state-of-charge tracking
• Features a 1-Wire digital interface for system communication
• Includes programmable alarms for over-voltage, under-voltage, and over-current conditions

Applications

• Portable electronic devices requiring single-cell lithium-ion battery management
• Medical equipment with strict power monitoring requirements
• Industrial handheld tools and instruments

Procurement Notes

Verify component authenticity through authorized distributors due to potential availability constraints. Confirm RoHS compliance status and specific suffix variations against the official datasheet before procurement. Ensure supply chain stability as end-of-life status may affect long-term sourcing.

Selection Notes

Select this component when single-cell lithium-ion monitoring with integrated coulomb counting is required. Compare against the DS2761 or DS2762 if higher pin counts or additional features are needed. Verify that the 1-Wire interface compatibility matches the host microcontroller capabilities.

Part Context

The DS276N belongs to the Maxim Integrated DS276x family of battery monitors. This series is designed for applications requiring precise fuel gauging without external sense resistors in some configurations, though the DS276N typically integrates sensing capabilities within its architecture for compact design solutions.

Replacement Considerations

Check for direct pin-compatible alternatives such as the DS2761 or DS2762. Verify functional equivalence regarding the 1-Wire protocol and alarm thresholds. Consider updated generations from Analog Devices if available.