S-8254ABLFT-TB-U

Battery Management Overview

The S-8254ABLFT-TB-U is a battery protection IC designed for 3-cell or 4-cell lithium-ion and lithium-polymer battery packs. It operates within a power supply voltage range of 2 V to 24 V and utilizes a TSSOP-16 surface-mount package. The device provides high-precision overcharge detection with a threshold of 4.100 V ±25 mV and an overcharge release voltage of 4.000 V ±50 mV. Overdischarge detection is set at 2.50 V ±80 mV, releasing at 2.90 V ±100 mV. It features three-stage overcurrent protection: Stage 1 detects currents corresponding to voltage drops between 0.05 V and 0.30 V (±25 mV), while Stage 2 triggers at a fixed 0.5 V drop (±100 mV).

Battery Management Feature Summary

• Provides comprehensive protection against overcharging, overdischarging, and short circuits for multi-cell lithium battery configurations.
• Implements a three-stage overcurrent detection mechanism to handle varying levels of excessive current flow during operation.
• Ensures high accuracy in voltage monitoring through precise detection thresholds for both charge and discharge states.

Battery Management Applications

• Protection circuits for 3-series or 4-series lithium-ion battery packs
• Safety management systems for portable electronic devices
• Battery management units in electric tools and medical equipment

Battery Management Procurement Notes

Verify the specific suffix codes on the component marking to confirm the exact overcharge voltage threshold, as variations exist within the S-8254A series. Ensure the ordering part number matches the required detection parameters for your specific battery chemistry. Confirm the package type is TSSOP-16 and check RoHS compliance status via the manufacturer's official documentation before finalizing procurement.

Battery Management Selection Notes

Select this component when designing protection circuits for 3S or 4S lithium battery architectures requiring high voltage detection precision. The integrated three-stage overcurrent capability allows for flexible external resistor selection to tailor protection levels. Consider the operating voltage range up to 24 V to ensure compatibility with fully charged pack voltages. Evaluate the thermal performance requirements relative to the TSSOP-16 package constraints.

Battery Management Part Context

This IC belongs to the S-8254A series from ABLIC, specialized for multi-cell battery protection. It complements single-cell solutions like the S-8261A and dual-cell variants such as the S-8252A. The series focuses on integrating high-precision analog detection with robust fault handling to enhance safety in portable energy storage applications without requiring complex external microcontrollers.

Battery Management Replacement Considerations

Direct substitutes are limited due to specific threshold variations. Verify if other S-8254A variants with different suffixes meet the electrical requirements. Cross-reference pinouts and package dimensions with alternative manufacturers' multi-cell protection ICs if sourcing changes are necessary.