Part Number: ISO1540 Hi, I am having issues with EMI testing for a product. I am having issues near the 20MHz and 280MHz frequencies. I am wondering if this chip has some sort of internal clock / carrier frequency that could be giving us grief at those…
Part Number: ISO1540 Hi Team
base on my understanding for operation as below.
SDA1 pull L -> pass comparator C -> NOT gate D (L -> H) , MOSFET (L) -> it will influence comparator(Schimitter trigger?) A and pull NOT gate B(L ->H), so SDA 1 waveform…
Part Number: ISO1540 Other Parts Discussed in Thread: ISO1640 Hello,
Would it be possible to speak to someone familiar with the ISO1540 vs the ISO1640? We've historically used the ISO1540, but it is a hot swapp application with batteries and am wondering…
Part Number: ISO1540 Other Parts Discussed in Thread: ISO1541 Hi,
I have a RPI 5 on side 1, and several I2C chips on Side 2 (e.g. MCP3428, PCA9555A, X9241).
As shown in schematics joined, I have 3.3kR on both sides. Note: 330R resistors have been…
Part Number: ISO1540 Tool/software: Hi,
In application, there are two different GND levels and two ICs. We want to connect these two IC's to just one I2C line. Can we use ISO1540 in this configuration as shown below?
Best regards.
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 Other Parts Discussed in Thread: ISO1640 , TCA9800 Tool/software: Hi Team,
We face to VOL issue in our application. Maximum VOL of ISO1540 is 0.8V which close to end point threshold and cause some issue.
Any suggest to get lower…
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 Other Parts Discussed in Thread: ISO1640 Tool/software: Hello，
ISO1540 is used for IIC isolation, SDA low level will have a voltage bump of 600mV, and there will also be overshoot voltage. How is overshoot voltage generated, and…
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…
