The S-8261AAOMD-G20-T2 is a single-cell lithium-ion battery protection IC from SII Semiconductor Corporation. It provides essential protection for lithium-ion batteries, guarding against overcharge, overdischarge, and overcurrent conditions, ensuring reliable operation in portable devices. This IC monitors battery voltage and current, disconnecting the battery from charging or discharging circuits upon detecting a fault.

Applications:

• Smartphones: Enhances battery safety, extending lifespan and preventing potential hazards.
• Tablets: Prevents battery damage, ensuring reliable performance from overcharging or excessive discharging.
• Portable Media Players: Shields the battery from harmful conditions, maintaining consistent performance.
• Digital Cameras: Extends battery usability and prevents unexpected power disruptions by providing reliable protection.
• Wireless Headphones: Offers performance monitoring, ensuring consistent power output and longevity.
• Wearable Devices: Delivers robust battery protection in smartwatches, fitness trackers, and various wearables.

Features:

• Overcharge Protection: Prevents charging beyond safe voltage limits, preventing battery damage.
• Overdischarge Protection: Prevents discharging below safe voltage levels, protecting against cell damage.
• Overcurrent Protection: Guards against excessive current draw, preventing overheating and damage.
• Short-Circuit Protection: Immediately disables the battery upon detecting a short circuit, minimizing safety risks.
• High-Precision Voltage Detection: Accurate voltage monitoring enables reliable protection.
• Low Current Consumption: Minimizes power drain, maximizing battery life in portable applications.
• Small Package Size: Allows integration into compact electronic designs.

Benefits:

• Enhanced Battery Safety: Reduces fire and explosion risks by preventing battery damage.
• Extended Battery Life: Protects against conditions that shorten battery lifespan.
• Improved Device Reliability: Prevents battery-related failures, enhancing device reliability.
• Reduced Component Count: Integrates multiple protection functions into a single IC.
• Simplified Circuit Design: Eases integration into battery protection circuits.

Technical Specifications: The S-8261AAOMD-G20-T2 commonly features pre-set voltage thresholds for overcharge and overdischarge detection, along with an overcurrent detection threshold. It typically operates with a supply voltage ranging from 1.5V to 4.5V. The IC is designed for minimal current consumption, generally in the microampere range during standard operation, with even lower levels during standby. It’s usually available in a small package like SOT-23-6, and has a typical operating temperature range of -40°C to +85°C.