Texas Instruments Battery Management BQ769142PFBR

The BQ769142PFBR from Quarktwin Technology Ltd. is a high-accuracy battery monitor and protector designed for 3-series to 14-series lithium-ion, lithium-polymer, and LiFePO,ÇÑ battery packs. It features an integrated charge pump for high-side NFET protection, extensive protection mechanisms including voltage, temperature, and current monitoring, and dual independent ADCs for simultaneous current and voltage sampling. The device supports high-accuracy cell voltage measurement with a typical error of less than 10 mV and includes a high-accuracy coulomb counter with an input offset error of less than 1 ¬µV. This battery management IC operates in various power modes, including NORMAL, SLEEP, DEEPSLEEP, and SHUTDOWN, with current consumption ranging from 1 ¬µA in SHUTDOWN mode to 286 ¬µA in NORMAL mode. It can tolerate high voltages up to 85 V on cell connections and supports temperature sensing through internal and external thermistors. Communication options include 400-kHz I¬=C, SPI, and HDQ one-wire interface, and it comes in a compact 48-pin TQFP package. The BQ769142PFBR is suitable for applications such as battery backup units, e-bikes, cordless power tools, and industrial battery packs.