Uln2803 Led Schaltung. 8 channel darlington driver solenoid unipolar stepper uln2803a id. Utc alldatasheet datasheet datasheet search site for electronic components and.
Note also the uln2803 while you can switch 500ma per channel the total current of on leds at any one time is only about 640ma. Utc alldatasheet datasheet datasheet search site for electronic components and. The device consists of eight npn darlington pairs that feature high voltage outputs with common cathode clamp diodes for switching inductive loads.
Utc alldatasheet datasheet datasheet search site for electronic components and.
You need a current limiting resistor with every led and you connect the led resistor combination in parallel. Eight darlington arrays uln2803 datasheet uln2803 circuit uln2803 data sheet. The collector current rating of each darlington pair is 500 ma. Uln2803 is a high voltage and high current darlington transistor array and is mainly used as a relay driver with an ability to handle 8 relays at a time it comes with a collector emitter voltage around 50 v and input voltage residing at 30 v.
