The BQ7790509PWR is a sophisticated battery protection device designed and manufactured by Texas Instruments (TI), a leader in semiconductor solutions. This integrated circuit (IC) is engineered to provide comprehensive safety features for lithium-ion and lithium-polymer battery packs, ensuring reliable operation and longevity of the batteries it serves.

Key Features

• Voltage Protection: The BQ7790509PWR offers a high level of voltage protection for single-cell to five-cell battery packs. It monitors individual cell voltages and ensures they remain within safe operating limits, preventing overcharge, over-discharge, and cell imbalance.
• Current Sensing: This device includes an integrated current sense amplifier, enabling precise monitoring of charge and discharge currents. This feature helps to prevent damage caused by current extremes, such as short circuits or overcurrent conditions.
• Temperature Monitoring: With built-in temperature monitoring capabilities, the BQ7790509PWR can detect and respond to abnormal temperature conditions, reducing the risk of thermal runaways and enhancing the safety of battery operations.
• Configurable Protection Settings: Manufacturers can configure the protection settings of the BQ7790509PWR to match the specific requirements of their battery pack designs, offering a versatile solution for a wide range of applications.

Applications

The BQ7790509PWR is ideal for use in a variety of battery-powered devices, including:

• Power tools
• Electric bicycles and scooters
• Portable consumer electronics
• Energy storage systems

Technical Specifications

The device is housed in a TSSOP (Thin Shrink Small Outline Package) with a power pad for enhanced thermal performance. It operates over a wide temperature range, making it suitable for use in diverse environmental conditions. The BQ7790509PWR also features low quiescent current, contributing to the overall energy efficiency of the battery pack.

Conclusion

With its robust protection features and configurable settings, the BQ7790509PWR from Texas Instruments is a reliable choice for safeguarding lithium-based battery packs. Its advanced monitoring and control capabilities make it an essential component for any application where battery safety and performance are of utmost importance.