Re: High voltage open collector output w/logic inputs?



Hello Joel,

Anyone know of some small (e.g., SOT-23, SC70, etc.) open collector output driver that can sink, say, 100mA, can stand off, say, 32V, and is controlled by a logic level (5V or 3.3V CMOS) input?

The ideal is to take the slightly wimpy outputs from a microcontroller and directly drive a small 28V relay coil, power up some 15V op-amps, etc... and I'm looking for a better solution than a handful of FET/BJTs and resistors.


Ahem, how many channels did you expect in a SOT23 package? Why not just use a FET that is guaranteed a desired RDSon at 3.3V or 5V?


Regards, Joerg

http://www.analogconsultants.com
.



Relevant Pages

  • Re: High voltage open collector output w/logic inputs?
    ... >driver that can sink, say, 100mA, can stand off, say, 32V, and is controlled ... >by a logic level (5V or 3.3V CMOS) input? ... "Digital transistor" (BJT with bias resistors built in). ...
    (sci.electronics.components)
  • Floppy A: drive wont display
    ... I reset the CMOS floppy drive ... also uninstalled the floppy drive driver in WinXP, reboot ... the machine and reinstalled the driver. ... display in my list of drives. ...
    (microsoft.public.windowsxp.hardware)
  • RE: Kernel interrupts disable at user level - RIGHT/ WRONG - Help
    ... I want the contents of A, B, C, D registers of CMOS mapped registers. ... But instead the driver gives the details about the bit masks of few of register A, ... Mukund Jampala ...
    (Linux-Kernel)
  • Re: Who ist interested in QBUS prototype PCCBs?
    ...  It came as a two box system, which the extension ... The 8T97, I believe not so hard to find, seems to sink 48ma. ... I believe that was the popular S-100 bus driver. ... Receiver high threshold: 1.7v min ...
    (comp.sys.dec)
  • Re: 300 mA from a microcontroller pin
    ... sink 25 mA, but I need 300 mA. ... and high impedance. ... Can someone please suggest a driver chip so that I can effectively ... A little overkill on peak, it provides 2A peak, but only 100mA ...
    (comp.arch.embedded)