The S-8211CBJ-I6T1G is a lithium-ion battery protection IC manufactured by SII Semiconductor Corporation. This IC is designed to protect lithium-ion rechargeable batteries from overcharge, overdischarge, and overcurrent conditions, ensuring the safe and reliable operation of battery-powered devices.

Applications

• Smartphones
• Tablet computers
• Wearable devices (smartwatches, fitness trackers)
• Portable power banks
• Bluetooth speakers
• Other battery-powered electronic devices

Features

• Overcharge detection: Accurately monitors the battery voltage and disconnects the charging circuit when the voltage exceeds a predefined threshold, preventing overcharging and potential damage.
• Overdischarge detection: Continuously monitors the battery voltage and disconnects the load when the voltage falls below a predefined threshold, preventing deep discharge and extending battery life.
• Overcurrent detection: Detects excessive current flow during charging or discharging and disconnects the circuit to protect the battery and connected devices from damage.
• Short-circuit protection: Quickly detects short-circuit conditions and disconnects the circuit to prevent catastrophic failures.
• High-accuracy voltage detection: Ensures precise monitoring of battery voltage for reliable protection.
• Low current consumption: Minimizes its own power consumption to extend the battery's operational life.
• Small package size: Allows for compact designs in portable electronic devices.

Benefits

• Enhanced battery safety: Prevents overcharge, overdischarge, and overcurrent conditions, ensuring the safe operation of lithium-ion batteries.
• Extended battery life: Protects against deep discharge, which can significantly reduce battery lifespan.
• Improved device reliability: Prevents damage to the battery and connected devices due to abnormal conditions.
• Compact design: Enables smaller and more portable electronic devices.
• Reduced risk of fire or explosion: Minimizes the potential hazards associated with lithium-ion batteries.

Additional Details

The S-8211CBJ-I6T1G operates within a specific voltage range and has defined thresholds for overcharge, overdischarge, and overcurrent detection. It is typically used with external components, such as resistors and capacitors, to fine-tune the protection parameters. The IC comes in a small package, such as SOT-23-6, making it suitable for space-constrained applications. Consult the datasheet for detailed electrical characteristics, timing diagrams, and application examples.