SLUUCJ6 November 2023
The Texas Instruments BQ76907EVM is a complete evaluation system for the BQ76907, The BQ76907 is a highly integrated, high accuracy battery monitor and protector for 2-series to 7-series Li-Ion, LiPolymer, and LiFePO4 battery packs. The BQ76907 features a high accuracy monitoring system with dedicated coulomb counter and accumulated charge integration, a highly configurable protection subsystem, and support for host controlled cell balancing. Integration includes low-side protection NFET drivers, a programmable LDO for external system use, and an I2C host communication interface supporting up to 400-kHz operation with optional CRC. The evaluation module includes one BQ76907 integrated circuit (IC), sense resistor, one thermistor, power FETs, and all other onboard components necessary to protect the cells from overcharge, over discharge, short circuit, overcurrent discharge, over temperature, and under temperature. The circuit module connects directly across the cells in a battery, or can be connected with a power supply and the included cell simulator resistors. With the on-board interface or compatible external interface board and Microsoft®Windows® based PC graphical user interface (GUI) software, the user can view the device registers, evaluate voltage, current and temperature accuracy, adjust protection limits, and enable FET control outputs.