SLUUCJ0 November 2023 BQ76907
The BQ76907 product is a highly integrated, accurate battery monitor and protector for 2-series to 7-series Li-Ion, Li-Polymer, LiFePO4 (LFP), and LTO battery packs. A high accuracy voltage, current, and temperature measurement provides data for host-based algorithms and control. A feature-rich and highly configurable protection subsystem provides a wide set of protections which can be triggered and recovered completely autonomously by the device or under full control of a host processor. Integrated FET drivers drive low-side charge and discharge protection NFETs. A programmable LDO is included for external system use, with voltage programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V, capable of providing up to 20 mA.
The BQ76907 device includes one-time-programmable (OTP) memory that TI programs to configure default device operation settings, for systems where a host processor is not available to configure the device. A 400-kHz I2C communication interface and ALERT interrupt output enable communication with a host processor. The device includes support for one external thermistor as well as an internal die temperature measurement. Figure 2-1 shows the BQ76907 block diagram.