Protect your battery
Reliable battery protection with advanced precision and integration
Battery protectors detect a variety of fault conditions such as overvoltage, under-voltage, discharge overcurrent, and short circuit, and range from simple (OV only) to advanced (more faults detected). Battery protection is a requirement for any lithium based chemistries; our battery protection portfolio can help you get started.
Single-cell primary
Battery protectors for single cell battery packs such as smartphones and wearables capable of protecting against voltage, current, and temperature faults and auto-recovering by opening & closing FETs.
Multi-cell primary
Battery protectors for multi cell battery packs such as power tools and vacuum cleaners capable of protecting against voltage, current, and temperature faults and auto-recovering by opening & closing FETs with stacking and cell balancing built in.
Second-level protectors
Battery protectors for single up to multiple cells stacked meant to drive a fuse for permanent failure or redundant protection.
Charger front-end
Charger front end protectors sit between the charger and the wall adapter or power supply to protect your system against high voltage transients in single cell applications.
Featured battery protection products
BQ77915
3-series to 5-series stackable ultra-low-power primary protector with autonomous cell balancing
Battery protection resources
Learn about the basics of battery protection and how important they are for any li-ion battery pack.
Fully-tested reference designs and test reports to help kick-start your design process.
Search for any suppliers' battery protection IC to find our similar devices.
Looking for other devices to complete your design?
Check out our monitors & gauges which capture key battery parameters. Monitors relay this information to a MCU while the gauge computes the data to report capacity indication and health indication.