Part Number: ISO1641 Hi Team,
Customer tested our ISO1641B by below D/S configuration, but finding the high/low voltage of SDA pin cannot react to VCC and GND value. They want to know the reason here. I think it should be related w/ pull-up resistor and…
Part Number: TMDXIDK5718 Other Parts Discussed in Thread: ISO1641 Hello!
We are using TI-RTOS to communicate over I2C. We are using I2C1 to communicated with an ADC through an ISO1641 isolator. We are observing a condition where the I2C driver enters…
Hi Gopal,
For isolating the SDA/SCL lines, a digital isolator such as the ISO1641 would work.
You could also use a high-side FET topology (protection FETs are between BAT+ and PACK+) to remove the need for isolation. You may be interested in the bq76942…
Part Number: INA228 Other Parts Discussed in Thread: ISO1640 , ISO1641 , , INA233 , BQ76942 Hello,
I'm working on a circuit based on STM mCU, with some I2C devices used. One INA233 and one INA228 device is placed on mCU's I2C side, wheras BQ76942 is used…
Hello Darshan,
Thanks for reaching out. The VOL of ISO1640 is 570-710mV. All bidirectional and I2C isolators will have a side one offset like this to prevent latch-up conditions. See (+) [FAQ] Why is the logic LOW level output voltage, VOL1, up to 0.8V…
Hello Flynn,
Thank you for reaching out. The load capacitance on side 1 and side 2 must be less than the C1 and C2 capacitive load spec in the datasheet. In general, I2C is only recommended for communications between IC's on the same board, for off-board…
Part Number: BQ76942 Other Parts Discussed in Thread: INA228 , BQSTUDIO , , , ISO1641 Hello,
on my circuit I used BQ7694202PFBR IC, for measuring cell voltages of 8 cell battery. The problem is that my I2C scanner find it on a 0x08 address, but as far as…
Part Number: BQ76942 Other Parts Discussed in Thread: ISO1640 , ISO1641
Hello,
I'm working on 8 cell battery monitor with host control balancing cell support only and I would like to ask you to check my configurations, additionaly I also have some questions…
Electro Guy,
Electro Guy said: One question I have about the original ISO1450 is, how can it send data from one side to the other without the other side sending it right back as an endless loop?
We continently have an FAQ on this: (+) [FAQ] Why is the logic…
Other Parts Discussed in Thread: ISO1541 , ISO1540 Why is the logic LOW level output voltage, V OL1 , up to 0.8V on Side1 of the ISO1540 and ISO1541 bidirectional I2C isolators?