Part Number: ISO1540-Q1 Hello,
I’m working with the ISO1540-Q1 IC and need to determine the maximum current consumption on each side of the device in order to correctly design the power tree for its supply.
While reviewing the datasheet, I found several…
Part Number: ISO1540-Q1 Hello Exerpt,
Our customer has two questions.
First, how long should we wait to start communication from supplying power for both VCC? I suppose that it should be UVLO recoverly time but would like to make sure just in case…
Part Number: ISO1540-Q1 Hi
We are using ISO1540QDRQ1 in our design.We have connected 4 INA228AQDGSRQ1 and one ADS1115IDYNR to the same I2C bus and connected to the I2C isolator on one side and the other side is connected to the microcontroller FS32K144HAT0MLHT…
Part Number: ISO1540-Q1 Other Parts Discussed in Thread: ISO1540 , ISO1640 Hi,
In the ISO1540-Q1 data sheet's absolute maximum table, it mentions that the SDA and SCL lines for either side should not exceed VDDx + 0.5V
So does that mean that the part…
Hi Clément, The reasons why we are suggesting you swap the sides is that on side 1,
V OL of ISO1540-Q1 is very close to V IL of TCA9511A and the cables might cause it to go into indeterminate state.
Side1 connected to MCU will show 0V which clarify…
Part Number: ISO1540-Q1 Hello,
ISO1540-Q1 meets basic isolation.
Do you have any plan of ISO1540-Q1 or any other I2C part to meet reinforced isolation.
Best regards,
H.Someno
Part Number: ISO1540-Q1 Hey there,
I am trying to isolate a circuit's I2C signals.
This circuit has a Gnd which is raised above 0V. The VCC is at 67V and the Gnd is raised to 62V.
will that pose a problem?
asking this cause I cant simulate the…
Part Number: ISO1540-Q1 Hello,
I am using the ISO1540-Q1 with VCC1 and VCC2 tied together to the supply of the guest system. So if the guest is powered off (VCC1 and VCC2 off), will this cause any interference on the host side?
Regards
Part Number: ISO1540-Q1 Other Parts Discussed in Thread: TCA9517A , ISO1541 , ISO1540 , BQ40Z50 Hello Support team:
I met SMBus programming issue cause by noise or longer communication line.
Project diagram as below;
1. The host system(MCU) SMBus…
Hi Orobianco,
Thank you for sharing details about your application requirement relating to question. Please note that ISO1540-Q1 Side1 (SDA1/SCL1) & Side2 (SDA2/SCL2) are designed keeping in mind the component they would be interfaced to.
VIL1 &…
