The S-8261AAUMD-G2UT2U is a high-precision voltage detector IC designed and manufactured by ABLIC U.S.A. Inc. This IC is primarily used for overcharge and overdischarge protection in lithium-ion and lithium polymer rechargeable battery packs. It integrates a highly accurate voltage detection circuit, a delay circuit, and low current consumption characteristics to ensure reliable battery protection in various portable applications.

Applications

• Lithium-ion battery packs for wearable devices (smartwatches, fitness trackers)
• Battery protection circuits in Bluetooth headsets
• Power banks and portable chargers
• Battery management systems (BMS) for small electronic devices
• Protection circuits for coin-type lithium batteries

Features

• High-Accuracy Voltage Detection: Ensures precise monitoring of battery voltage levels, preventing overcharge and overdischarge.
• Low Current Consumption: Minimizes power drain from the battery pack, extending battery life.
• Overcharge Detection: Prevents damage to the battery due to excessive charging voltage.
• Overdischarge Detection: Protects the battery from deep discharge, which can degrade battery performance and lifespan.
• Built-in Delay Circuit: Prevents false triggering of protection circuits due to transient voltage spikes or noise.
• Small Package Size: Allows for compact battery pack designs in portable devices.
• Wide Operating Temperature Range: Suitable for use in a variety of environmental conditions.

Benefits

• Enhanced Battery Safety: Prevents battery damage and potential hazards associated with overcharging and overdischarging.
• Extended Battery Lifespan: Protects against voltage extremes, maximizing the number of charge/discharge cycles the battery can endure.
• Improved Device Reliability: Ensures stable and reliable operation of the powered device by preventing battery-related failures.
• Reduced Component Count: Integrates multiple protection functions into a single chip, simplifying circuit design and reducing board space.
• Lower Power Consumption: Minimizes the load on the battery, resulting in longer run times for portable devices.

Additional Details

The S-8261AAUMD-G2UT2U operates with specific voltage detection thresholds optimized for lithium-ion battery chemistries. It typically requires minimal external components for operation, further simplifying the design. The device is available in a small, surface-mount package, enabling integration into space-constrained applications. Its high-accuracy voltage detection and low current consumption make it a suitable choice for protecting lithium-ion batteries in modern portable electronic devices. Proper grounding and external component selection are essential for optimal performance and reliability. Consult the datasheet for detailed specifications and application guidelines.