S-8254AASFT-TB-G

Battery Management Overview

The S-8254AASFT-TB-G is a battery protection IC designed for 3-series or 4-series lithium-ion and lithium-polymer rechargeable batteries. It provides high-accuracy voltage detection with an overcharge detection voltage of 4.20V ±25mV and an overcharge release voltage of 4.10V ±50mV. The device features an overdischarge detection voltage of 2.0V ±80mV and an overdischarge release voltage of 2.7V ±100mV. It includes three-level overcurrent protection with the first level set at 0.30V ±25mV. The component operates within a supply voltage range of 2V to 24V and supports a working temperature range from -40°C to +85°C, housed in a TSSOP-16 package.

Battery Management Feature Summary

• Provides high-accuracy voltage detection for individual cells to prevent overcharging and overdischarging.
• Implements a three-level overcurrent protection mechanism to handle varying fault conditions including short circuits.
• Supports flexible configuration for both 3-cell and 4-cell battery packs via a dedicated selection pin.

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 multi-cell battery management

Battery Management Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm exact threshold voltages and delay times. Ensure compatibility with external MOSFETs and sense resistors based on the defined detection levels. Confirm RoHS compliance status through the manufacturer's current product declarations before finalizing procurement specifications.

Battery Management Selection Notes

Select this component when precise cell balancing and protection are required for 3S or 4S configurations. The fixed detection thresholds necessitate matching the battery chemistry characteristics to ensure safe operation margins. Consider the external circuit requirements for setting delay times and overcurrent sensing resistance values to meet system safety standards.

Battery Management Part Context

This part belongs to the S-8254 series of battery protection ICs manufactured by ABLIC Inc. The series is engineered specifically for safeguarding serial-connected lithium-based battery cells. It integrates voltage detectors and delay circuits to manage charging and discharging states effectively.

Battery Management Replacement Considerations

Direct substitutes within the same series include variants with different voltage thresholds such as S-8254AAIFT-TB-G or S-8254AABFT-TB-G. Verify that the replacement part matches the required overcharge and overdischarge detection voltages for the specific battery pack application.