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The S-8423AFS-T2 is a lithium-ion battery protection IC manufactured by SEIKO Instruments Inc. (SII). Below are its key specifications, descriptions, and features:

Specifications:

• Input Voltage Range: 2.5V to 5.5V
• Overcharge Detection Voltage: 4.25V to 4.35V (adjustable)
• Overcharge Release Voltage: 4.05V to 4.25V
• Overdischarge Detection Voltage: 2.0V to 3.0V (adjustable)
• Overdischarge Release Voltage: 2.2V to 3.2V
• Overcurrent Detection Voltage: 0.15V (typical)
• Operating Current: 3.0µA (typical)
• Standby Current: 0.1µA (max)
• Delay Times: Adjustable via external capacitors
• Package: SNT-6A (Super Mini-Mold)

Description:

The S-8423AFS-T2 is designed for protecting single-cell lithium-ion/polymer batteries from overcharge, overdischarge, and overcurrent conditions. It integrates high-accuracy voltage detection and delay circuits, ensuring safe battery operation.

Features:

• High-Accuracy Voltage Detection: ±25mV (Overcharge), ±50mV (Overdischarge)
• Low Current Consumption: Extends battery life
• Adjustable Detection Voltages: Configurable via external resistors
• Built-in Delay Circuits: Prevents false triggering
• Compact Package: SNT-6A (1.8 x 2.0 x 0.5mm) for space-constrained applications
• Short-Circuit Protection: Detects and responds to excessive current

This IC is commonly used in portable electronics, such as smartphones, tablets, and wireless devices, where reliable battery protection is critical.

For detailed datasheets, refer to SEIKO Instruments Inc. official documentation.