The S-8211CAB-I6T1G is a lithium-ion battery protection IC from SII Semiconductor Corporation. This IC is designed to protect single-cell lithium-ion batteries from various fault conditions, including overcharge, overdischarge, and overcurrent. The main purpose of this device is to ensure the safe and reliable operation of lithium-ion batteries in portable electronic devices, contributing to longer battery lifespan and improved system stability.

Applications

• Battery packs for mobile phones
• Power management in portable gaming devices
• Protection circuits for Bluetooth headsets
• Battery management systems for digital cameras
• Safety circuits in wearable electronics (e.g., fitness trackers)
• Lithium-ion battery protection for MP3 players

Features

• High-precision overcharge detection
• Accurate overdischarge detection
• Overcurrent detection with short-circuit protection
• Low current consumption during operation
• Automatic recovery function from overcharge and overdischarge
• External FET control for charge and discharge paths

Benefits

• Enhanced Battery Safety: Prevents damage and potential hazards to lithium-ion batteries by safeguarding against overcharging, over-discharging, and excessive current draw.
• Extended Battery Life: Minimizes battery degradation caused by improper charging and discharging, increasing the overall lifespan of the battery.
• Improved System Reliability: Contributes to the stable and reliable operation of battery-powered devices by preventing battery-related failures.
• Simplified Circuit Design: Integrates multiple protection functions into a single IC, reducing the need for discrete components and simplifying circuit design.
• Reduced Power Consumption: Operates with minimal current draw, reducing the impact on battery runtime and extending the usability of portable devices.

Technical Specifications

The S-8211CAB-I6T1G includes precise voltage detection thresholds for overcharge, overdischarge, and overcurrent conditions. Refer to the product datasheet for specific voltage and current ratings. The IC operates within a specified temperature range and supply voltage range, ensuring reliable performance across various environments. It is typically available in a small SOT-23-6 package. The charge and discharge paths are controlled by external FETs, allowing for flexible circuit design. The low current consumption is crucial for maximizing the battery life of portable devices.

The overcharge detection voltage, overdischarge detection voltage, and overcurrent detection voltage are carefully calibrated to provide optimum protection for lithium-ion batteries. The automatic recovery feature allows the battery to resume normal operation after a fault condition has been resolved. The small package size enables easy integration into compact electronic devices.