Darlington-Arrays ULN2x0y

To easily switch loads from a microcontroller the Darlington-Arrays ULN2803 from SGS-Thomson are used. But there exists different types like ULN2003 or ULN2801. What are the differences?

ULN200y has 7 (16 pin) and ULN280y (18 pin) has 8 switches. Both have a integrated suppression diode for each switch. Each switch is able to provide 500mA.

The "y" is for the different logic families:

ULN2x01

General Purpose, DTL, TTL, PMOS, CMOS

ULN2x02

14-25V PMOS

ULN2x03

5V TTL,CMOS

ULN2x04

6–15V CMOS, PMOS

There are also the ULN2064, ULN2066, ULN2068, ULN2070, ULN2074, ULN2076. This contain only four Darlington switches, but are able to switch up to 1.5A at 50V.