The S-8211CDC-I6T1U is a single-cell lithium-ion battery protection IC manufactured by ABLIC U.S.A. Inc. It provides essential protection features for lithium-ion batteries, including overcharge, overdischarge, and overcurrent protection. This IC is well-suited for use in a variety of portable electronic devices.

Applications

• Single-cell lithium-ion battery packs
• Smartphones
• Tablets
• Wearable devices (smartwatches, fitness trackers)
• Portable Bluetooth speakers

Features

• Overcharge protection
• Overdischarge protection
• Overcurrent protection
• Short-circuit protection
• High-accuracy voltage detection
• Small package: SOT-26

Benefits

• Enhanced Battery Safety: Protects the lithium-ion battery from damage due to overcharging, overdischarging, and excessive current.
• Prolonged Battery Life: Prevents irreversible damage caused by extreme conditions, extending the battery's overall lifespan.
• Improved Device Reliability: Ensures safe and stable operation of the electronic device.
• Compact Design: The small SOT-26 package allows for easy integration into space-constrained applications.
• Simplified Circuit Design: Requires minimal external components, simplifying the design process.

Additional Details

The S-8211CDC-I6T1U provides comprehensive protection for single-cell lithium-ion batteries. The overcharge protection prevents the battery voltage from exceeding a safe level during charging, while the overdischarge protection prevents the battery from being discharged below a safe level. The overcurrent protection limits the discharge current to a safe level, and the short-circuit protection quickly disconnects the battery in the event of a short circuit. This IC requires external MOSFETs to implement the protection functions, and the accuracy of the detection voltages is critical for reliable battery protection. The exact voltage thresholds for overcharge and overdischarge, as well as the current limits for overcurrent, are specific to the S-8211CDC model and can be found in the product datasheet. It's usually used in devices with a 3.7V nominal battery voltage.