The S-8211CBW-I6T1U is a single-cell lithium-ion battery protection IC manufactured by ABLIC U.S.A. Inc. This IC is designed to protect lithium-ion rechargeable batteries from overcharge, overdischarge, and overcurrent conditions. It's commonly used in portable devices like smartphones, wearables, and other battery-powered electronics.

Applications

• Single-cell lithium-ion battery protection
• Smartphones
• Wearable devices (smartwatches, fitness trackers)
• Bluetooth headsets
• Portable power banks

Features

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

Benefits

• Enhanced Battery Safety: Prevents damage to the battery from overcharging, overdischarging, and excessive current draw.
• Prolonged Battery Life: Protects the battery from irreversible damage caused by extreme operating conditions, extending its lifespan.
• Improved Device Reliability: Ensures stable and safe operation of the electronic device by preventing battery-related failures.
• Compact Size: The small SOT-26 package makes it ideal for space-constrained applications.
• Simplified Circuit Design: Reduces the number of external components needed, simplifying the design process.

Additional Details

The S-8211CBW-I6T1U integrates comprehensive protection functions into a single chip. The overcharge protection prevents the battery voltage from exceeding a safe limit during charging. The overdischarge protection prevents the battery from being discharged below a safe voltage level. The overcurrent protection limits the discharge current to a safe level, protecting the battery and connected circuitry. The short-circuit protection quickly disconnects the battery in the event of a short circuit, preventing catastrophic damage. This IC requires external MOSFETs to implement the protection functions. The exact voltage thresholds for overcharge and overdischarge protection, as well as the current limits for overcurrent protection, are specific to the S-8211CBW model and should be confirmed in the device's datasheet. It is designed to operate over a wide temperature range, typically -40°C to +85°C.