I thought this would be easy but Google wasn't much help.
I need to drive 7 relays from a micro with 5 volt outputs (Teensy 2.0). I'm driving 4 now with discreet 2n3904 transistors but need a smaller foot print. Was thinking it would be pretty easy to find a through hole IC that consisted of several NPN transistors which would take up less board space than 7 2n3904 transistors and associated resistors.
Looking for ideas from you guys on what I might use to drive the relays?
Thanks
I need to drive 7 relays from a micro with 5 volt outputs (Teensy 2.0). I'm driving 4 now with discreet 2n3904 transistors but need a smaller foot print. Was thinking it would be pretty easy to find a through hole IC that consisted of several NPN transistors which would take up less board space than 7 2n3904 transistors and associated resistors.
Looking for ideas from you guys on what I might use to drive the relays?
Thanks