Hi Ning, Thanks for your assistance.
Regarding the 200nS delay. From IC signal to gate we have the 12V to 5V resistive divider, then the ISO7240CF isolator, then the UCC27714 gate driver. Measure delay through the resistive divider and ISO7240:
Around…
Other Parts Discussed in Thread: ISO7240CF I want to isolate signal PWM from MCU (3.3 Volt Tolerance) and power stage (24VDC) .
In my habit, I usually use opto to protect my MCUs.
Any ti's IC can help me to implement my idea?
Could I use ISO7240CF…
Sorry for my mistake, I used ISO7240CF.
It's seem I solved almost my problems after your answer. Thanks a lot.
New answer.
1. When we use opto, we need resistor to have a right current, with my part my design as below:
DIR, BREAK, PWM was connected…
Other Parts Discussed in Thread: ISO7240CF , ISO7520C , ISO7521C , ISO7640FM Hi Team,
ISO7240CF datasheet shows the following graph[LIFE EXPECTANCY vs. WORKING VOLTAGE].
Is there same data for ISO7520C ?
My customer would like to know the…
Other Parts Discussed in Thread: ISO7240C , ISO7240CF Is it all right even if I connect 7 pins to the GND?
I mistook ISO7240CF for ISO7240C and have got a wrong layout.I mistook ISO7240CF for ISO7240C and have got a wrong layout.
ISO7240CF 7pin=DISABLE…
Other Parts Discussed in Thread: ISO7140CC , ISO7240CF , ISO7240C , ISO7140FCC Hi TI-support
In my motor control design I’m using a digital isolator supplied by one of your competitors. This device is causing troubles: While having the isolator’s output…
Other Parts Discussed in Thread: ISO721 , ISO7240CF Please describe what the output of the digital isolator (ISO721) does on power up with no edge transitions on the inputs for various combinations of power sequences and input states.
I've read slyt335…
You are correct, Calum, the '245 does not provide the classic definition of isolation. For digital isolation, you would have to use one of the ISO7xxx devices, depending on the configuration required. For example, for a 2TX/2RX configuration, the ISO7242C…
Hello Saleem,
Thanks for the explanation.
Let me confirm that the explanation is for ISO7240C or ISO7240CF? (I'd like to know about ISO7240C, not ISO7240CF.)
I concern incorrect output in an instant even if EN=Low while in Vcc2 powering up…
