2803
THRU
2824
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAYS
DEVICE PART NUMBER DESIGNATION
V
CE(MAX)
I
C(MAX)
Logic
5V
TTL, CMOS
6-15 V
CMOS, PMOS
50 V
500 mA
Part Number
ULN2803A*
ULN2803LW*
ULN2804A*
ULN2804LW*
ULN2823A*
ULN2823LW
ULN2824A*
ULN2824LW
95 V
500 mA
*Also available for operation between -40°C and +85°C. To order, change
prefix from ‘ULN’ to ‘ULQ’.
PARTIAL SCHEMATICS
ULx28x3A/LW (Each Driver)
The ULx2804, ULx2823, & ULx2824 are discontinued.
Shown for reference only.
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
2.5
2.7 K
2.0
SUFFIX 'A', R
θJA
= 60°C/W
7.2 K
3K
Dwg. FP-052-2
1.5
1.0
SUFFIX 'LW', R
ULx28x4A/LW (Each Driver)
10.5 K
0.5
θJA
= 80°C/W
0
25
50
75
100
125
AMBIENT TEMPERATURE IN
°
C
150
7.2 K
3K
Dwg. FP-052-3
Dwg. GP-018B
x = Character to identify specific device. Specification shown applies to
family of devices with remaining digits as shown. See matrix above.
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1977, 2001 Allegro MicroSystems, Inc.
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
