I have implemented a BQ27501 to monitor a multi pack Li-poly battery. Based on SLUA496, an opamp scales down the battery voltage and supplies the BAT pin. The #BAT_GD pin is never pulled to GND, and is always floating on application of power to the system. I have a FET that is supposed to turn the power system of the PCB on, when the #BAT_GD pin is pulled low. Since the pin is not pulled low, the PCB does not power on. Note that the BQ27501 is supplied by a 2.5V supply that is directly regulated from the battery pack, and therefore the BQ27501 is powered on.
I also purchased the EV2300 module and the I2C lines from the BQ27501 on the target PCB is connected to the module. The module is not recognized by any of the software I have downloaded from TI's website. The drivers are installed correctly and windows recognizes the EV2300 correctly.
My questions are,
1. Do you have suggestions as to why the #BAT_GD pin is not pulled low?
2. Do I need to calibrate BQ27501 or change any parameters?
3. What software do I use with the EV2300 to communicate with the BQ27501 on my target PCB?
4. If I do need to calibrate or change any parameters, can I do that with the EV2300 and some software?
5. How can I use the EV2300 to verify that the implementation of the BQ27501 is correct?