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I2c communication issue and charging issue

Category: Hardware
Product Number: MAX17330

Hi all, I am working on max17330 ic, I have used max17330 EV kit it works fine, aven I have changed ic on the kit still I was able to communicate with it, but the problem is I have used the typical application ckt given in my PCB and when I connect battery and wake up the IC through sysp and sysn it gives me outup voltage from mosfte from battery but id doesn't charge the battery , also I2c bus is idle... I want to know whether in default configuration IC control dis and chg or not.. also why I2C communication is not working, I have connected my PCB i2c with everything kit i2c with common ground, the software shows reading I2c lines but not showing any values or rom id or devic signature..

  • The MAX17330 IC should be able to communicate with the EVKIT GUI if you are passing the SCL/SDA/GND from the EVKIT board to your board.  If the FETs are enabled on your board, that indicates the IC is properly powered, so it should be able to communicate.  Its difficult to debug with limited information. I would recommend looking at the communication waveforms and make sure the signals are reaching the IC on your board correctly.