ULN2801A, ULN2802A,
ULN2803A, ULN2804A
Eight Darlington arrays
Datasheet - production data
Description
The ULN2801A, ULN2802A, ULN2803A and
ULN2804A each contain eight Darlington
transistors with common emitters and integral
suppression diodes for inductive loads. Each
Darlington features a peak load current rating of
600 mA (500 mA continuous) and can withstand
at least 50 V in the OFF state. Outputs may be
paralleled for higher current capability.
DIP-18
Four versions are available to simplify interfacing
to standard logic families: the ULN2801A is
designed for general purpose applications with a
current limit resistor; the ULN2802A has a 10.5
k input resistor and Zener for 14-25 V PMOS;
Features
the ULN2803A has a 2.7 k input resistor for 5 V
TTL and CMOS; the ULN2804A has a 10.5 k
Eight Darlington transistors with common
input resistor for 6-15 V CMOS.
emitters
All types are supplied in an 18-lead plastic DIP
Output current to 500 mA
with a copper lead form and feature the
Output voltage to 50 V
convenient input-opposite-output pinout to
Integral suppression diodes simplify board layout.
Versions for all popular logic families
Output can be paralleled
Inputs pinned opposite outputs to simplify
board layout
Table 1. Device summary
Order codes Package
ULN2801A
ULN2802A
DIP-18
ULN2803A
ULN2804A
June 2018 DocID1536 Rev 4 1/14
This is information on a product in full production. www.st.comContents ULN2801A, ULN2802A, ULN2803A, ULN2804A
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2/14 DocID1536 Rev 4