S-8254ABNFT-TB-U

Battery Management Overview

The S-8254ABNFT-TB-U is a battery protection IC designed for 3-series or 4-series lithium-ion and lithium-polymer rechargeable batteries. It incorporates high-accuracy voltage detection circuits 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. The specific suffix 'B' indicates an overcharge detection voltage threshold of 4.180 V with a tolerance of ±25 mV.

Battery Management Feature Summary

• High-accuracy voltage detection circuitry ensures precise monitoring of individual cell voltages during charge and discharge cycles.
• Integrated delay circuits provide robust protection against transient faults, preventing false triggering during normal operation.
• Configurable SEL pin allows the single component to protect either 3-cell or 4-cell battery packs by switching modes.

Battery Management Applications

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

Battery Management Procurement Notes

Verify that the ordering suffix matches the required overcharge detection voltage threshold, as different letters denote specific voltage levels. Confirm the package type and tape-and-reel specifications align with assembly requirements. Ensure compatibility with the target battery chemistry and series configuration before procurement.

Battery Management Selection Notes

Select this component when designing protection circuits for 3 or 4 series connected cells. Choose based on the specific overcharge detection voltage needed for the battery cells, indicated by the model suffix. Consider the operating voltage range and package constraints for the PCB layout.

Battery Management Part Context

This part belongs to the S-8254A series of battery protection ICs from ABLIC Inc. The series is engineered specifically for multi-cell lithium-based battery packs, offering integrated solutions for voltage monitoring and fault protection without requiring external complex logic.

Battery Management FAQ

What does the 'B' in the model suffix indicate?

The letter 'B' specifies the overcharge detection voltage threshold for the device, which is 4.180 V ±25 mV for this specific variant.

Can this IC protect both 3-cell and 4-cell packs?

Yes, the S-8254A series supports both configurations. The number of protected cells is determined by the state of the SEL pin.