The O2Micro OZ8660LN-B5-1-TR is a highly integrated battery management IC designed for multi-cell Lithium-ion/Lithium-Polymer battery packs. It incorporates comprehensive protection features, precise voltage and current monitoring, and balancing capabilities, making it ideal for applications such as notebook computers, power tools, and e-bikes. This IC ensures safe and efficient charging and discharging of battery packs, extending battery lifespan and enhancing system reliability.

Applications

• Notebook Computers: Manages charging and discharging of multi-cell battery packs.
• Power Tools: Provides battery protection and balancing for cordless power tools.
• E-bikes and E-scooters: Manages battery packs for electric bicycles and scooters.
• Portable Medical Devices: Ensures safe and reliable battery operation in medical equipment.
• Uninterruptible Power Supplies (UPS): Provides battery management for backup power systems.

Features

• Multi-Cell Support: Supports multiple series-connected Li-ion/Li-Polymer cells.
• Overvoltage Protection (OVP): Protects cells from overcharging.
• Undervoltage Protection (UVP): Prevents cells from deep discharge.
• Overcurrent Protection (OCP): Limits discharge current to protect cells and load.
• Short-Circuit Protection (SCP): Quickly shuts down the battery pack in case of a short circuit.
• Cell Balancing: Ensures all cells in the pack are equally charged, maximizing pack capacity and lifespan.
• Temperature Monitoring: Monitors battery temperature to prevent overheating.

Benefits

• Extended Battery Lifespan: Cell balancing and comprehensive protection features extend battery lifespan.
• Enhanced Safety: Overvoltage, undervoltage, overcurrent, and short-circuit protection ensure safe battery operation.
• Improved System Reliability: Prevents battery-related failures, enhancing overall system reliability.
• Optimized Charging Performance: Precise voltage and current control optimizes charging efficiency.
• Simplified System Design: Highly integrated design reduces component count and simplifies circuit layout.

Additional Details

The OZ8660LN-B5-1-TR typically supports 2 to 4 series connected cells. The overvoltage protection threshold is programmable to accommodate different cell chemistries. The IC also includes a host interface for communication with a microcontroller, allowing for real-time monitoring and control of battery parameters. The package is a small QFN (Quad Flat No-leads) package suitable for surface mount technology. The operating temperature range is typically -40°C to +85°C. The device also integrates an analog-to-digital converter (ADC) for precise voltage and current measurements.