Dear All, I am using HSD ISO8200BQ in our digital output card. When we give logic high the output os HSD is as expected. When we give logic 0 the expected result should be <= 1V but we are getting 2.014V. So kindly suggest me the solution.

ARedd.1 · ‎2020-09-10

Part no:ISO8200BQ

Peter BENSCH · ‎2020-09-10

The ISO8200BQ is a "galvanic isolated octal high-side smart power solid state-relay", where High-Side means that the output can only be driven to VCC, i.e. the supply rail. There is a built-in pull-down resistor, typically 210 kOhms, which allows some protection functions but is not strong enough to drive the output really low. So all in all it is not a push-pull driver.

Usually this device is used to switch loads which are connected to ground, such as relays etc.

Does it answer your question?

/Peter

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Peter BENSCH · ‎2020-09-10

The ISO8200BQ is a "galvanic isolated octal high-side smart power solid state-relay", where High-Side means that the output can only be driven to VCC, i.e. the supply rail. There is a built-in pull-down resistor, typically 210 kOhms, which allows some protection functions but is not strong enough to drive the output really low. So all in all it is not a push-pull driver.

Usually this device is used to switch loads which are connected to ground, such as relays etc.

Does it answer your question?

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Cristiana SCARAMEL · ‎2020-09-20

Hi @ARedd.1 Peter's answer solved your doubts?

If yes please "Select as best" the reply to help the Community in similar questions.

If you feel a post has answered your question, please click "Accept as Solution"

ARedd.1 · ‎2020-09-20

Hi,

The problem is solved.

Thanks,

--Ashok Reddy