The S-8211CBR-I6T1G is a lithium-ion battery protection IC manufactured by SII Semiconductor Corporation. It's designed to safeguard single-cell lithium-ion battery packs against common hazards such as overcharge, overdischarge, and overcurrent. This IC is commonly employed in portable electronic devices to enhance battery safety and longevity.

Applications

• Smartphones
• Tablets
• Portable gaming consoles
• Wearable devices (smartwatches, fitness trackers)
• Bluetooth headsets

Features

• Overcharge Protection: Precisely monitors the battery voltage and disconnects the charging circuit when the voltage exceeds a pre-set threshold.
• Overdischarge Protection: Prevents the battery from being discharged below a safe voltage level, protecting against deep discharge and potential damage.
• Overcurrent Protection: Limits the discharge current to a safe level, preventing damage to the battery and connected circuitry from excessive current draw.
• Short-Circuit Protection: Quickly disconnects the battery in the event of a short circuit, preventing catastrophic failure.
• High-Accuracy Voltage Detection: Ensures precise monitoring of battery voltage for reliable protection.
• Low Current Consumption: Minimizes power drain on the battery, extending the operating time of the device.
• Compact Package: Available in a small SOT-23-6 package, making it suitable for space-constrained applications.

Benefits

• Enhanced Battery Safety: Protects lithium-ion batteries from damage and potential hazards associated with overcharge, overdischarge, overcurrent, and short circuits.
• Extended Battery Life: Prevents battery degradation and prolongs the usable lifespan of the battery pack.
• Improved System Reliability: Ensures stable and reliable operation of the device by protecting the battery from damage.
• Simplified Circuit Design: Integrates multiple protection functions into a single IC, reducing component count and simplifying board layout.
• Minimized Power Consumption: Low operating current contributes to longer battery life in portable devices.

Additional Details

The S-8211CBR-I6T1G includes a built-in delay circuit to prevent false triggering of the protection functions due to noise or transient voltage spikes. The overcharge, overdischarge, and overcurrent detection thresholds are precisely calibrated to ensure accurate and reliable protection. The IC typically operates with a supply voltage in the range of 1.5V to 5.5V. Specific voltage threshold levels will vary depending on the exact variant within the S-8211 series. It is RoHS compliant.