DESCRIPTION
The ULN2801A-ULN2805Aeach contain eight darlington transistors with common emitters and inte
gral suppression diodes for inductive loads. Each darlington features a peak load current rating of
600mA (500mA continuous) and can withstand at least 50V in the offstate.Outputs may be paralleled for higher current capability.Five versions are available to simplify interfacing to standard logic families : the ULN2801A is designed for general purpose applications with a current limit
resistor ; the ULN2802Ahas a 10.5kΩ input resistor and zener for 14-25V PMOS; the ULN2803Ahas a 2.7kΩinput resistor for 5V TTL and CMOS ; the ULN2804A has a 10.5kΩinput resistor for 6-15V
CMOS and the ULN2805A is designed to sink a minimum of 350mA for standard and Schottky TTL
where higher output current is required. All types are supplied in a 18-lead plastic DIP with
a copper lead fromand featurethe convenient input

■ EIGHT DARLINGTONS WITH COMMON EMITTERS
■ OUTPUT CURRENT TO 500 mA
■ OUTPUT VOLTAGE TO 50 V
■ NTEGRAL SUPPRESSION DIODES
■ VERSIONS FOR ALL POPULAR LOGIC FAMILIES
■ OUTPUT CAN BE PARALLELED
■ NPUTS PINNED OPPOSITE OUTPUTS TO SIMPLIFY BOARD LAYOUT