S-8211CAY-M5T1G

Battery Management Overview

The S-8211CAY-M5T1G is a battery protection IC designed for single-cell lithium-ion and lithium-polymer batteries. It integrates overcharge, overdischarge, and overcurrent protection functions within an ultra-small SOT-23-5 package. The device operates with a supply voltage range of 1.5 V to 28 V and features low standby current consumption. It includes dedicated control terminals for charging and discharging MOSFETs, enabling compact circuit design without external components.

Battery Management Feature Summary

• Integrates overcharge, overdischarge, and overcurrent detection circuits for single-cell protection
• Ultra-small SOT-23-5 surface mount packaging minimizes board space requirements
• Operates across a wide power supply voltage range from 1.5 V to 28 V
• Features low standby current consumption suitable for portable electronic devices

Battery Management Applications

• Single-cell lithium-ion battery pack protection
• Lithium-polymer battery management systems
• Portable consumer electronics requiring compact battery safeguards
• Medical equipment with single-cell power sources

Battery Management Procurement Notes

Verify the specific suffix M5T1G against the manufacturer's latest datasheet to confirm pinout and electrical characteristics. Confirm RoHS compliance status as indicated in official documentation. Check for end-of-life or not-for-new-design notices prior to procurement planning.

Battery Management Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries where minimal footprint is critical. Ensure the operating voltage range aligns with the target battery system. Verify that the integrated protection thresholds meet the specific safety requirements of the application.

Battery Management Part Context

This part belongs to the S-8211C series of battery protection ICs manufactured by ABLIC Inc. The series is engineered for high reliability and small size, targeting modern portable electronics. The CAY variant specifically denotes the SOT-23-5 package configuration optimized for space-constrained designs.

Battery Management Replacement Considerations

Consult official substitution lists for equivalent parts within the S-8211 series. Verify compatibility of control terminal configurations and protection thresholds before replacing. Generic equivalents may lack identical performance specifications.