ULN2003A: Overview,parameter,Main uses,Features,application fields,working principle and alternative models

The ULN2003A is a popular high-voltage, high-current Darlington transistor array integrated circuit. It is commonly used to control inductive loads such as relays

ULN2803ADWR: Overview,parameter,Main uses,Features,application fields,working principle and alternative models

The ULN2803ADWR is an integrated circuit (IC) commonly used for driving high-current loads such as relays, stepper motors, and other inductive loads.