Sink drivers and Source drivers

Discussion in 'General Electronics Chat' started by masclhs@gmail.com, Feb 4, 2009.

  1. masclhs@gmail.com

    Thread Starter New Member

    Feb 4, 2009
    1
    0
    While reading through the A3953 (allegro full-bridge PWM motor driver), i came across source drivers and sink drivers. What is a source driver and what is a sink driver? i can't find any references to what are these. Could anyone help me out please? thanks
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    If you look at the functional block diagram on page 2 of the datasheet the bottom transistors (darlington pairs) are the sink drivers and the upper transistors are the source drivers.
     
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