this is the link to the datasheet for the ULN2803 darlington array IC
http://www.datasheetcatalog.org/datasheets/90/366828_DS.pdf
in the datasheet, there are diodes which the datasheet identifies as suppresion diodes for inductive loads. What does this mean? Is it a form of protection? Some sources indicate that those are free wheeling diodes..What does the term free wheeling imply?
secondly, there are also another 2 diodes in the schematic diagram connected to each darlington pair. What are the functions of those two diodes? I sort of have a rough idea that its a form of protection but would like to understand it clearly.
Help is extremely appreciated.
Thanks=)
http://www.datasheetcatalog.org/datasheets/90/366828_DS.pdf
in the datasheet, there are diodes which the datasheet identifies as suppresion diodes for inductive loads. What does this mean? Is it a form of protection? Some sources indicate that those are free wheeling diodes..What does the term free wheeling imply?
secondly, there are also another 2 diodes in the schematic diagram connected to each darlington pair. What are the functions of those two diodes? I sort of have a rough idea that its a form of protection but would like to understand it clearly.
Help is extremely appreciated.
Thanks=)