As described on page 22 of the BQ25505 data sheet, VBAT_OV,VBAT_OK,VBAT_OK_HYST have been given values.If I use an ultracapacitor as rechargeable battery storage with a value of {0.1f /5.5V}, how do I set VBAT_OV,VBAT_OK,VBAT_OK_HYST?
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As described on page 22 of the BQ25505 data sheet, VBAT_OV,VBAT_OK,VBAT_OK_HYST have been given values.If I use an ultracapacitor as rechargeable battery storage with a value of {0.1f /5.5V}, how do I set VBAT_OV,VBAT_OK,VBAT_OK_HYST?
Hi,
VBAT_OV should be 5.5V or slightly less for your 5.5V capacitor. If your system is being powered from the capacitor and has minimum operating voltage, that could be VBAT_OK. If not, you do not have to see VBAT_OK as it is only a signal that the battery voltage is OK to the rest of the system.
Regards,
Jeff
Hi,Jeff
The output of the charge management chip sets VBAT_OV to output a certain voltage according to the external resistance network. The resistance voltage divider network is controlled by the external microcontroller, and the adjustable VSTOR voltage is output for different application scenarios. Is this idea true?
Regards