The S-8211CAJ-I6T1G is a high-precision lithium-ion battery protection IC manufactured by SII Semiconductor Corporation. This IC integrates voltage detection circuits, a delay circuit, and a driver for controlling external FETs, providing comprehensive protection for lithium-ion battery packs.

Applications

• Lithium-ion battery packs for smartphones
• Lithium-ion battery packs for tablet computers
• Lithium-ion battery packs for wearable devices (smartwatches, fitness trackers)
• Lithium-ion battery packs for power tools
• Lithium-ion battery packs for portable medical devices

Features

• Overcharge Detection: Accurately monitors the battery voltage and triggers protection when it exceeds a predefined threshold.
• Overdischarge Detection: Prevents the battery voltage from dropping below a safe level, protecting against deep discharge damage.
• 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: Immediately shuts off the discharge path 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 the impact on battery life, extending the operational time of the device.
• Small Package: Available in a compact package, ideal for space-constrained applications.

Benefits

• Enhanced Battery Safety: Prevents damage to the lithium-ion battery pack from overcharge, overdischarge, overcurrent, and short circuits.
• Extended Battery Life: Protects the battery from conditions that can degrade its performance and lifespan.
• Improved System Reliability: Ensures stable and reliable operation of the device by protecting the battery pack from damage.
• Reduced Component Count: Integrates multiple protection functions into a single IC, reducing the overall component count and board space.
• Simplified Circuit Design: Simplifies the design of the battery protection circuit, reducing development time and cost.

Additional Details

The S-8211CAJ-I6T1G operates over a wide temperature range, making it suitable for use in a variety of environments. It also features a built-in delay circuit to prevent false triggering of the protection functions due to noise or transient events. The specific voltage detection thresholds and delay times are configurable, allowing for customization to meet the specific requirements of the application. The supply voltage is typically between 1.5V and 5.5V. This IC is RoHS compliant.