The S-8211CAS-M5T1S is a single-cell lithium-ion battery protection IC manufactured by SII Semiconductor Corporation. It's designed to protect lithium-ion batteries from overcharge, overdischarge, and overcurrent conditions, ensuring safety and prolonging battery life. It's commonly used in a variety of portable electronic devices.

Applications

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

Features

• Overcharge Detection: Precisely monitors the battery voltage and prevents overcharging by disconnecting the charging circuit when the voltage exceeds a predefined threshold.
• Overdischarge Detection: Protects the battery from deep discharge by disconnecting the load when the voltage drops below a safe level.
• Overcurrent Protection: Limits the discharge current to a safe level, preventing damage to the battery and connected circuitry due to 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.
• Small Package: Comes in a compact SOT-23-6 package, ideal for space-constrained applications.

Benefits

• Enhanced Battery Safety: Protects lithium-ion batteries from damage caused by 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.
• Reduced Component Count: Integrates multiple protection functions into a single IC, simplifying circuit design and reducing board space.
• Minimized Power Consumption: Low operating current contributes to longer battery life in portable devices.

Additional Details

The S-8211CAS-M5T1S incorporates a built-in delay circuit to prevent false triggering of the protection functions due to transient voltage spikes or noise. 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. This particular version (M5T1S) refers to specific voltage threshold configurations within the S-8211 series. This IC is RoHS compliant.