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Datasheet
Multi-Cell Lithium-Ion Battery Protection and Management IC for 3S–5S Battery Packs
The BQ7791501PWR is a dedicated battery management and protection IC designed for monitoring and safeguarding multi-cell lithium-ion and lithium-polymer battery packs. Supporting battery configurations from 3-series to 5-series cells, this IC provides essential protection functions to ensure safe battery operation in portable and industrial power systems. It continuously monitors individual cell voltages and system conditions to detect faults such as overvoltage, undervoltage, and overcurrent events. The device helps prevent battery damage while maintaining reliable system performance.
This battery protection IC is commonly used in power tools, e-bikes, energy storage systems, robotics, and other battery-powered devices requiring dependable multi-cell battery protection. The BQ7791501 integrates internal control logic for monitoring battery conditions and triggering protection responses without requiring complex external circuitry. Packaged in a compact TSSOP-24 form factor, it supports efficient PCB integration in modern battery management system designs.
Key Features
- Supports 3S to 5S Battery Packs – Designed for multi-cell lithium-ion and lithium-polymer battery configurations.
- Comprehensive Battery Protection – Detects overvoltage, undervoltage, and overcurrent conditions.
- Individual Cell Voltage Monitoring – Continuously monitors each cell to maintain safe operating limits.
- Integrated Protection Logic – Automatically responds to fault conditions to protect the battery pack.
- Improved Battery Safety – Prevents damage caused by abnormal voltage or current levels.
- Low Power Operation – Suitable for battery-powered applications requiring efficient monitoring.
- Compact TSSOP-24 Package – Enables easy PCB layout and integration into battery management circuits.
