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  • ISO15: RS485 communication not working

    Resolved
    Part Number: ISO15 Greetings, I am using ISO15DW 3.3V RS-485 Transceiver. Here is the schematic of my hardware:- EXTTRANAL CONTROLLER.pdf I have used dsPIC microcontroller for this purpose. When I directly connect RS485-RX and RS485-TX pins of dsPIC microcontroller…
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  • RE: ISO15: ISO15 internal pull-up down to calculate maximum number of ISO15 on a bus

    Resolved
    Hi Cedric, Hopefully you are well. This thread has been inactive for the past few weeks and will be closed. Do you have additional information from calculations or tests? If so, feel free to reply to this thread or you may create a related thread using…
    • Answered

  • ISO15: Distance Through Insulation

    Resolved
    Part Number: ISO15 Hello, We are in the process to design a RS485 IS (Intrinsically Safe) Isolation Barrier/Repeater for use in a coal mine application. The certification agency has asked us, if possible, to provide them with the distance through insulation…
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  • ISO15 isolated tranceiver

    Other Parts Discussed in Thread: ISO15 Is ISO15 a Opto isolators or Silicon oxide isolator? What's the difference and the pros and cons?
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  • Pull-up and pull-down resistors on enable pins of ISO15

    Resolved
    Other Parts Discussed in Thread: ISO15 I intend to use ISO15 RS485 transceiver for my application. I want to know how to decide upon the suitable value of pull-up and pull-down resistors on the REn and DE pins, if I intend to have jumpers installed in…
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    • Answered

  • Repeaters in cascade (ISO15)

    Resolved
    Other Parts Discussed in Thread: ISO15 Hi, I'm looking for communication that can handle a network with ~250kbps for one 10km segment (very large scale network). In your website, I found the ISO15 Isolated 3.3V, Half Duplex, RS485 Transceiver that…
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    • Answered

  • RE: RS485 half-duplex repeater using ISO15

    Resolved
    Thomas, I've made some prototypes using your first approach. They are intended for training purposes (not commercial) so I hope there is no problem with licenses or rights. The pleasant surprise is that it worked at the first time -with no errors-, somewhat…

  • SN75HVD12: Replacement to SN75HVD12D

    TI Thinks Resolved
    Part Number: SN75HVD12 Other Parts Discussed in Thread: THVD1410 , THVD2450 , THVD1450 , , ISO15 Hi Team, Our customer is looking for a replacement to SN75HVD12D. The product page of SN75HVD12D suggested THVD1410, THVD1450 and THVD2450. According to our customer…
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  • ISO15 and DCP020503 tolerance

    Resolved
    Other Parts Discussed in Thread: ISO15 , TPS54232 , DCP020503 , DCR010503 We’re implementing an RS485 interface using the ISO15 ( http://www.ti.com/lit/ds/symlink/iso15.pdf ) with a circuit similar to that described in this app note ( http://www.ti.com/lit…
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  • RE: TS5A23159: Can be used to segment RS485 stubs?

    Thanks Rami, I confirm that the signals involved are RS485 signals, no negative swings but differential (as per definition of RS485 signaling). About voltage levels i'm a little bit confused...the RS485 by definition implements differential signaling…

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