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  • ISO15: ISO15 internal pull-up down to calculate maximum number of ISO15 on a bus

    Resolved
    Part Number: ISO15 Other Parts Discussed in Thread: ISO1410 Hello, We want to use ISO15 for our application and I have to calculate the maximum number of ISO15 on a RS485 bus to be compliant to RS485 standard (375ohm max of common mode load) and also…
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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…
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    • 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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  • 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-,…
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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…
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  • ISO35: I need an ISO35 in the -55°C to +125°C temperature range.

    Part Number: ISO35 I need an ISO35 in the -55°C to +125°C temperature range. The ISO35 datasheet (attached) says that only the ISO35M is rated from -55°C to +125°C, but the Addendum-Page 1 (Package Options) says that the ISO35M is obsolete, and the…

  • 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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