Diode connected MOS vs Schottky diode

Discussion in 'General Electronics Chat' started by Sanat Mishra, Jan 4, 2016.

  1. Sanat Mishra

    Thread Starter New Member

    Jan 4, 2016
    1
    0
    Hi,

    Which has lower forward drop - Diode connected MOS or a Schotkky Diode? Please let me know with reason.

    Thank you.
     
  2. dl324

    Distinguished Member

    Mar 30, 2015
    3,211
    619
    Schottky has a lower forward voltage. The body diode in a MOS transistor is a "normal" PN junction.
     
  3. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,669
    804
    And even if the body diode were a schottky it would have worse parameters than an actual diode because it is a side effect of the transistor design and is not optimised.
     
  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,766
    1,101
    And if you want current to flow in the forward direction (i.e. not through the body diode) then the voltage drop will be at least the threshold Vgs (i.e a few volts for significant current).
     
Loading...