Part Number: ISO1228 Other Parts Discussed in Thread: ISO7741 , ISOM8710 , ISO1212 , , ISO7740 , ISO7741EVM Tool/software:
I am using three AC/DC programmable power supplies (HDS3000-12) in parallel for my application. Each power supply provides…
Part Number: ISO1228 Tool/software: HI Sir
I use the 4 pcs ISO1228 in one DI card
in burst mode, the sync sometime is ok, will get the right data as below figure
in burst mode, the sync sometime isn't ok, will get the error data as below figure
please…
Part Number: ISO1228 Tool/software: hi Sir
may i know how to set up the VIH, VIL by firmware or hardware?
spec : VIH : 15V, VIL :10V,
VIH : input over 15V , LED ON
VIL : input under 10V , LED OFF
thanks
Hello Shwetha ,
I have reviewed the post again with a colleague this morning and I would like to back track a little to make sure some important points have been covered.
To start, the schematic looks okay, and from the schematic alone I do not expect…
Hello Zoey,
I would need to see the customer's schematic to confirm the LED direction and provide possible reasons why it is lighting up in source modes. Currently, I think that you are right and current from the wire break detection is causing the LED…
Thresholds at the Inputs can be set by changing RTHR value. The equation and explanation are in datasheet. The ISO1228 calculator works on these equations.
The Internal Surge Protection is functional only in sink mode. The internal ESD structures can take current up to 1A and Voltage clamp at around 42V. Hence, if RTHR is surge proof resistor then surge protection is achieved without any additional Protection…
Yes, the voltage at INx channels on field side can be higher than AVCC Supply. The Max Value for AVCC = 36V. INx can never be greater than 36V. The device can handle and INx = AVCC +36V so long as 36V itself is not exceeded.
No, it cannot.
The device can only support either sink or source mode at a time. Data will not be transmitted to the output side, if all the 8 channels are not connected in same mode.