The ACT2801QL-T1026 is a PMIC (Power Management Integrated Circuit) specializing in battery management, manufactured by Active-Semi International Inc. This PMIC is designed to efficiently manage and protect batteries in portable and handheld devices, ensuring optimal performance and longevity. It integrates multiple functions to handle charging, discharging, and protection features critical for battery-powered applications.

Applications:

• Smartphones
• Tablets
• Portable Media Players
• Digital Cameras
• Handheld Gaming Consoles
• Wearable Devices

Features:

• Battery Charging: Supports various battery chemistries (e.g., Li-ion, Li-Polymer) with programmable charging parameters.
• Over-Voltage Protection (OVP): Protects the battery from over-voltage conditions during charging.
• Over-Current Protection (OCP): Prevents excessive current draw from the battery, protecting it from damage.
• Short-Circuit Protection (SCP): Shuts down the battery output in case of a short circuit to prevent damage.
• Thermal Protection: Monitors battery temperature and adjusts charging parameters to prevent overheating.
• Fuel Gauging: Provides accurate battery level monitoring.

Benefits:

• Extended Battery Life: Optimizes charging and discharging to maximize battery life.
• Enhanced Safety: Comprehensive protection features ensure safe battery operation.
• Simplified Design: Integrates multiple battery management functions into a single chip, simplifying system design.
• Accurate Monitoring: Provides precise battery level information.

Additional Details:

The ACT2801QL-T1026 typically comes in a compact QFN (Quad Flat No-Leads) package. The specific charging current and voltage settings can be programmed through an I2C interface. The datasheet from Active-Semi provides detailed information on electrical characteristics, application circuits, and programming guidelines. Designers should refer to the datasheet for specific requirements and recommendations to ensure proper operation and safety of the battery and the device. The thermal regulation features are essential to ensure the longevity and safety of Lithium-Ion batteries, which are highly sensitive to temperature variations.