Other Parts Discussed in Thread: BQ3060,
Hi. Previously we had batteries with bq3060 in them. These battery packs didn't have internal pull ups so we put 5.1Kohm resistors to pull up the SMBus lines to 3.3V.
Now our manufacturer changed the bq3060 to bq34z100-g1. In these battery packs there are pull ups to 2.4V on I2c line.
Now when there is communication between my device and bq34z100-g1 the high voltage is about 2.8v.
I was wondering can this harm the fuel gauge?
I am asking this because strange things have happened: I have been using one of these bq34z100-g1 battery packs for month and nothing bad has happened. Now I tried to connect another battery pack with bq34z100-g1 to my device and it fried the MCU after a while. I only connected the I2C lines and ground. The battery pack is working fine when I connect it with Ev2300, but I am afraid to connect it to another of my devices.
Can someone please give me an advice?
