BQ25690EVM

The BQ2569X/9X-Q1 evaluation module (EVM) is used to evaluate the BQ2569X/9X-Q1 integrated circuit. The BQ2569X/9X-Q1 is an integrated switched-mode buck-boost battery charge management device in HOTROD (QFN) package, intended for charging 1-series to 7-series cell Li chemistry batteries with up to 3.3A charge current. In forward/charge/sink mode, the IC operates from 2.5V to 34V input voltage and withstands up to 45V. The BQ25690 NVDC topology has an external BATFET that provides a regulated minimum system voltage when the battery is low and measures termination current independent of system load current. The default charge voltage and current are set using resistors. The device defaults to forward/charge/sink mode but can be changed using I2C to reverse/OTG/ source mode. The BQ25690 also allows forward/ reverse bypass (pass through) mode using the I2C registers. In addition, the I2C registers can change the switching frequency as well as the voltage and current regulation settings. The BQ25690 has maximum power point tracking (MPPT) feature for use with HiZ power sources like solar panels.

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