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ISL3158 RS485 transeiver fail - safe mode

Time:11-16

Help you a great god, and ISL3158 half-duplex transmission, as the receiver when the differential input signal is disconnected, the output will remain high and low level change, see the specification, the specification is full of the fail safe mode, but don't know how to use, how to design can make the input single output constant value disconnect?

CodePudding user response:

Receiver input differential signal opens a case, the output should not remain constant, only two are disconnected to completely fail safe mode,

CodePudding user response:

To put it bluntly, it is the internal AB pull up and down, make the bus without access to determine the value, so disconnect a root is not enough,
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