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TIOL111 bidirectional level shifter

Part Number: TIOL111


Hello, 

       As TIOL111 works as level shifter which takes care physical link and voltage translation from 24 V to 3.3 V and vice versa. I am clear that master's 24 V is converted to device's 3.3 V required for controller but I do not get how  this TIOL111 IC converts 3.3 V from controller  to 24 V output required for IO link master. Does this IC alone can level shift or any external pull up is required.

I came up with question because controller can give output ->   3.3 V and maximum 20mA with just this much how TIOL111 can step up the voltage upto 24V and how much will be current ? 

  

  • Hi Venkstesh,

    The CQ output used a push pull output design that is powered by the L+ voltage rail (nominally 24 V). This means that it is capable of level shifting without requiring external pull-up/pull-down resistors and can source a level of current dependent on the L+ supply capability (as well as the current limit configured via the ILIM resistance). The current for the high voltage out does not need to be sourced from the 3.3-V supply (as it would in something like a boost converter circuit).

    Regards,

    Max