S-8254AAKFT-TB-U

Battery Management Overview

The S-8254AAKFT-TB-U is a battery protection IC designed for 3-series or 4-series lithium-ion and lithium polymer rechargeable batteries. It integrates high-accuracy voltage detectors and delay circuits to prevent overcharge, overdischarge, and overcurrent conditions. The device operates within a power supply voltage range of 2 V to 24 V and utilizes a TSSOP-16 surface-mount package. Specific electrical parameters for this part number include an overcharge detection voltage of 4.300 V with ±25 mV accuracy, an overcharge release voltage of 4.200 V with ±50 mV accuracy, an overdischarge detection voltage of 2.0 V with ±80 mV accuracy, and an overdischarge release voltage of 2.7 V with ±100 mV accuracy.

Battery Management Feature Summary

• Provides comprehensive protection against overcharge, overdischarge, and overcurrent events for multi-cell lithium battery packs.
• Features high-accuracy voltage detection capabilities to ensure precise monitoring of individual cell states.
• Incorporates built-in delay circuits to filter noise and prevent false triggering during transient conditions.

Battery Management Applications

• Protection circuits for 3-series lithium-ion battery packs
• Protection circuits for 4-series lithium-polymer battery packs
• Portable electronic devices requiring reliable battery management

Battery Management Procurement Notes

Verify the specific suffix codes on the component marking to confirm the exact voltage thresholds, as variations exist within the S-8254A series. Ensure compatibility with the target battery chemistry and cell count before integration. Cross-reference the datasheet for the specific AAK variant to validate detection voltages against system requirements.

Battery Management Selection Notes

Select this component when designing protection systems for 3S or 4S lithium-based battery configurations. The fixed detection voltages suit applications where standard lithium-ion charging profiles are utilized. Consider the TSSOP-16 package constraints for PCB layout and thermal management in compact designs.

Battery Management Part Context

This IC belongs to the S-8254A series from ABLIC Inc., which specializes in battery protection integrated circuits. The series is engineered for high reliability in portable electronics, offering a compact solution for managing multiple serial cells without external complex circuitry.

Battery Management Replacement Considerations

Direct replacements must match the 3/4-cell architecture and TSSOP-16 footprint. Verify that alternative parts support the same voltage ranges and offer comparable detection accuracies for overcharge and overdischarge scenarios.