max1898 Quiescent current

Hi,

EC spec IN, CS input current as IIN + ICS as shown

Is the 300uA input current measured include the current flow to  pin?

Thanks,

CL

Thanks for the reply here. I think at the moment this current consumptions is not a challenage at the moment.

I have a couple of problems with out battery pack regarding the configurations and holding the configuration. I understand the device does not hold register values after a power reset. But the problem is I can not even reset the chip. I see sometimes the chip hangs. For example, pressing the button does not show the LED bar. Sometimes the LED bar works, but reading the capacity by I2C does not work. In the 3rd case, I press the button to show the level, but it never turns off after the timeout. In all cases, a power reboot would fix it. But the problem is that this fuel gauge is inside the sealed battery pack. We are not supposed to ask a customer to short-circuit the battery pack to reset the internal fuse and then reprogram it after the power recovery.

I would like to know what are the ways to reset the chip without reseting its power supply. Or how to recover the chip from a bad state.

Looking forward to hearing from you.

Amir

Hi Amir,

I am not quite understood your statement.   MAX1898 there is no I2C??

CL

Hi,

Yes, I have cases that the fuel guage does work and I can configure some registers. But I can not read capacity registers.

This I2C is only one of the problems I have. I listed other issues too that I am interested to know more about each. So, I wonder if you are aware of some potential issues with this chip and have a solution or suggestion to prevent.

Since this is a battery pack, there are pogo pins to contact the pack via I2C pins. I do not know how resistant these GPIO pins are to high voltage noises from insertion/removal.

Thanks,

Amir

Hi Amir,

I think we are talking about different thing.  MAX1898 has no I2C communication and GPIO pin.  No, I don't know any potential issue with MAX1898.

Rgds,

CL

Oh right. I am so sorry. I just openned another thread for this issue.

 MAX17263 does not hold the settings - I2C issues too 

I ended up not using max1298 because of the leakage current.