Power management

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; TI’s 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

BQ2980

High Side Protector for Single-Cell Li-Ion and Li-Polymer Batteries

BQ2970

Li-Ion/Li Polymer Advanced Single-Cell Battery Protector IC Family

BQ77915

3-Series to 5-Series stackable ultra-low-power primary protector with autonomous cell balancing

BQ7718

Family 2-5S Overvoltage Protector with Internal Delay Timer

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 similar TI 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.