Low-power battery pack protectors for voltage, current and temperature protections

Texas Instruments bq7790x 3-to-5 Series stackable battery protector ICs, available now from Mouser, are low-power battery pack protectors that implement a suite of voltage, current, and temperature protections. These protections are all done without MCU control. Protection thresholds and delays are factory-programmed and available in a variety of configurations. Separate over temperature and under temperature thresholds for discharge and charge are provided for added flexibility. These devices achieve pack protection via the integrated independent CHG and DSG low-side NMOS FET drivers, which may be disabled via two control pins. Typical applications include power tools, garden tools,start-stop battery packs, lead-acid (PbA) replacement batteries, light electric vehicles, energy storage systems, UPS, and 10.8V to 72V packs.