TI introduces industry's first single-chip battery management device for power tools and e-bike applications
Texas Instruments » bq77910
Highly integrated, standalone device provides complete pack protection and cell-balancing for 4- to 10-cell lithium battery packs
Texas Instruments Incorporated introduced the industry's first fully integrated battery protection and cell-balancing solution for Li-Ion and lithium iron phosphate battery packs. The bq77910 battery management and protection device can manage 4- to 10-cell battery packs, and two devices can be stacked to protect 11- to 20-cell packs. The device simplifies battery pack designs for e-bikes, e-scooters, portable gardening tools, power tools and uninterruptible power supplies (UPS) and can also be used when replacing lead acid batteries.
The bq77910 protects the battery pack by monitoring individual cell voltages and drives two N-channel power MOSFETs to interrupt current flow during fault conditions. Fault detection and recovery criteria for the device are fully programmable in non-volatile memory to suit all types of lithium battery systems.
Key features and benefits of the bq77910
TI offers a variety of tools and support to speed the implementation of the bq77910 family of devices:
Availability and pricing
The bq77910 is available now in a 38-pin TSSOP package, priced at $2.70 in quantities of 1,000.
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