10pcs Uln2803a Uln2803 2803 Transistor Array-8 Npn Ic Durable Direct Insertion Darlington Drive 8 Channel

hey guys I have an interesting little chip to show you today unfortunately it is not an audio amplifier chip yeah sorry maybe in the next video but I think you might find this interesting if you play around with the little micro controller chips like the pic chips such as a pickaxe there's the arduino z' even the little tiny micro computer such as the Raspberry Pi well the outputs of those chips you can use to drive LEDs and things problem is there's just not enough current or voltage to drive some motors actuators or relays even power LEDs you might want to operate with the microcontroller what you need is some way to amplify the power or the current coming out of those outputs and you can do that with transistors and MOSFETs and things but I think this here is a neat solution what it is it's an ln 2803 a it's in Donington driver array there's eight drivers on one chip here in this 18