Logic Level MOSFET

Discussion in 'General Electronics Chat' started by R!f@@, Jun 21, 2015.

  1. R!f@@

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    Apr 2, 2009
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    I need to switch some LED's via a PIC.
    I chose this Mosfet IRLML2060TRPBF
    Data attached.
    Like to know if these MOSFET is good to switch less than 1Amp LED loads with a 5V Logic without a sink.
     
  2. Alec_t

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    With Vgs=4.5V the Rds(on) is 640mV, so at 1A current it would dissipate 640mW. That's close to the 800mW absolute maximum power allowed at a temperature of 70C, so you'd be sailing too close to the wind IMO. I'd be looking for a FET with a lower Rds(on).
     
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  3. R!f@@

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    Any Suggestions ?
     
  4. R!f@@

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    Digikey says this part is a logic level FET.
    What do you say to this part.
     
  5. R!f@@

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    How about this ?
    Too bad they don't come in smaller package
     
  6. MaxHeadRoom

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    I generally tend to use the IRL540 with a Pic.
    Max.
     
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  7. #12

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    Marginal...uncertain.
     
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  8. R!f@@

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    Thought so too.

    Any suggestions on a smaller package of IRL540
     
  9. R!f@@

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    Found something better.
    BUK139-50DL
    What do you think ?

    Is it good for driving LEDs in PWM ?
     
  10. crutschow

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    That device has a very slow operate times (in the tens to over a hundred microseconds, see data sheet, pg.4) so may not be suitable for a PWM application.
    What is you PWM frequency?
    Have you looked at these?
     
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  11. R!f@@

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    PWM is like LED dimming. Fade in and out
     
  12. R!f@@

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    How's this for 1Amp LED PWM fading through a PIC
     
  13. Alec_t

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    That looks ok.
     
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  14. R!f@@

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    Thanks Alec_t
    Any one else care to confirm.
    Few votes and I will place the order.
     
  15. crutschow

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    I second the motion.
     
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  16. R!f@@

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    I bought BUK98150-55A and look what I got. Are they the same thing ?


    Mosfet.jpg
     
  17. mcgyvr

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    See page 2 section 7 of the datasheet.. (Marking)..
     
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  18. Alec_t

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    Yup.
    According to the NXP datasheeet :-

    Type: BUK98150-55/CU
    Marking code: 915055
     
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  19. R!f@@

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    Thanks.
    That is a relief.
     
  20. crutschow

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    It's rather frustrating that a manufacturer would put a code on the package that's unrelated to the part designation. o_O
     
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