Electronics › Electronics › Internal scheme uln2003 › first of all it is not a
September 26, 2016 at 8:38 am #14158
first of all it is not a diode. it is symbol of inverted output. means you apply high (logic 1) input you will get low (logic 0) output. it shows you can connect any load in current sinking configuration.
please refer the internal circuit – darlington configuration for more detail