Uln2003 Schaltung. Relay driver ic uln2003 is high voltage and high current integrated ic which used darlington array. Uln2003 is a relay driver ic consisting of a darlington array.
It has the capacity to drive 500ma into a single channel upto 250ma per channel if four of the seven channels are active and 125 ma per channel if all the seven channels are active. 500 ma rated collector current single output 50 v output there is a version that supports 100 v output. Relay driver ic uln2003 is high voltage and high current integrated ic which used darlington array.
4 phase uln2003 stepper motor driver pcb the uln2003 stepper motor driver pcb provides a direct drive interface between your microcontroller and stepper motor.
It is made up of seven open collector darlington pairs with common emitter. The pcb provides 4 inputs for connection to your microcontroller power supply connection for the stepper motor voltage and on off jumper a direct connect stepper motor header. Mit ttl 3 3v ein 5v relais ansteuern anfänger. Maximum power dissipation is a function of tj max rthja and ta.
