ZHCSPB8A December 2021 – June 2022 BQ77207
PRODUCTION DATA
In this application example, the choice of a FUSE or FETs is required on the COUT and DOUT pins—configured as an active high drive to 6-V outputs.
When paring with the BQ769x2 or BQ76940 devices, the top cell must be used. For the BQ77207 device to drive the CHG and DSG FETs, the active high 6-V option is preferred. Its COUT and DOUT are controlling two N-CH FETs to jointly control the CHG and DSG FETs with the monitoring device. For such joint architecture, the open-wire feature of the BQ77207 device may be affected if the primary protector or monitor device is actively measuring the cells. Care is needed to ensure the VOW spec of the BQ77207 device is met or to choose a version of the BQ77207 device with open wire disabled. When working with a BQ769x2 device, the LOOPSLOW setting of the BQ769x2 device should be set to 0x11 to ensure the BQ77207 VOW spec is met.