NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a
product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The information
included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor
for any infringements of patents or other rights of third parties which may result from its use.
Recommended Substitutions:
High Voltage High Current Darlington Arrays
ULx2803, ULx2804, ULx2823,
and ULx2824
Date of status change: October 31, 2005
These parts are no longer in production The device should not be
purchased for new design applications. Samples are no longer available.
Discontinued Product
2803
THRU
2824
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAYS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2
ULx28x4A/LW (Each Driver)
Copyright 1977, 2001 Allegro MicroSystems, Inc.
V
CE(MAX)
50 V
95 V
I
C(MAX)
500 mA
500 mA
Logic
Part Number
5V
ULN2803A*
ULN2823A*
TTL, CMOS
ULN2803LW*
ULN2823LW
6-15 V
ULN2804A*
ULN2824A*
CMOS, PMOS
ULN2804LW*
ULN2824LW
* Also available for operation between -40
C and +85
C. To order, change
prefix from `ULN' to `ULQ'.
DEVICE PART NUMBER DESIGNATION
50
75
100
125
150
2.5
0.5
0
AMBIENT TEMPERATURE IN
C
2.0
1.5
1.0
25
Dwg. GP-018B
SUFFIX 'A', R = 60
C/W
JA
SUFFIX 'LW', R = 80
C/W
JA
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
ULx28x3A/LW (Each Driver)
PARTIAL SCHEMATICS
x = Character to identify specific device. Specification shown applies to
family of devices with remaining digits as shown. See matrix above.
The ULx2804, ULx2823, & ULx2824 are discontinued.
Shown for reference only.
Dwg. FP-052-2
3 K
7.2 K
2.7 K
Dwg. FP-052-3
3 K
7.2 K
10.5 K
2803
THRU
2824
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAYS
www.allegromicro.com
3
Test
Applicable
Limits
Characteristic
Symbol
Fig.
Devices
Test Conditions
Min.
Typ.
Max.
Units
Output Leakage Current
I
CEX
1A
All
V
CE
= 50 V, T
A
= 25
C
--
< 1
50
A
V
CE
= 50 V, T
A
= 70
C
--
< 1
100
A
1B
ULx2804x
V
CE
= 50 V, T
A
= 70
C, V
IN
= 1.0 V
--
< 5
500
A
Collector-Emitter
V
CE(SAT)
2
All
I
C
= 100 mA, I
B
= 250
A
--
0.9
1.1
V
Saturation Voltage
l
C
= 200 mA, I
B
= 350
A
--
1.1
1.3
V
I
C
= 350 mA, I
B
= 500
A
--
1.3
1.6
V
Input Current
I
IN(ON)
3
ULx2803x
V
IN
= 3.85 V
--
0.93
1.35
mA
ULx2804x
V
IN
= 5.0 V
--
0.35
0.5
mA
V
IN
= 12 V
--
1.0
1.45
mA
I
IN(OFF)
4
All
l
C
= 500
A, T
A
= 70
C
50
65
--
A
Input Voltage
V
IN(ON)
5
ULx2803x
V
CE
= 2.0 V, l
C
= 200 mA
--
--
2.4
V
V
CE
= 2.0 V, I
C
= 250 mA
--
--
2.7
V
V
CE
= 2.0 V, l
C
= 300 mA
--
--
3.0
V
ULx2804x
V
CE
= 2.0 V, l
C
= 125 mA
--
--
5.0
V
V
CE
= 2.0 V, l
C
= 200 mA
--
--
6.0
V
V
CE
= 2.0 V, I
C
= 275 mA
--
--
7.0
V
V
CE
= 2.0 V, l
C
= 350 mA
--
--
8.0
V
Input Capacitance
C
IN
--
All
--
15
25
pF
Turn-On Delayt
PLH
8
All
0.5 E
IN
to 0.5 E
OUT
--
0.25
1.0
s
Turn-Off Delayt
PHL
8
All
0.5 E
IN
to 0.5 E
OUT
--
0.25
1.0
s
Clamp Diode
I
R
6
All
V
R
= 50 V, T
A
= 25
C
--
--
50
A
Leakage Current
V
R
= 50 V, T
A
= 70
C
--
--
100
A
Clamp Diode
V
F
7
All
I
F
= 350 mA
--
1.7
2.0
V
Forward Voltage
Complete part number includes prefix to operating temperature range: ULN = -20
C to +85
C, ULQ = -40
C to +85
C
and a suffix to identify package style: A = DIP, LW = SOIC.
Types ULx2803A, ULx2803LW, ULx2804A, and ULx2804LW
ELECTRICAL CHARACTERISTICS at +25
C (unless otherwise noted).
The ULx2804 is discontinued.
Shown for reference only.
2803
THRU
2824
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAYS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
4
Test
Applicable
Limits
Characteristic
Symbol
Fig.
Devices
Test Conditions
Min.
Typ.
Max.
Units
Output Leakage Current
I
CEX
1A
All
V
CE
= 95 V, T
A
= 25
C
--
< 1
50
A
V
CE
= 95 V, T
A
= 70
C
--
< 1
100
A
1B
ULx2824x
V
CE
= 95 V, T
A
= 70
C, V
IN
= 1.0 V
--
< 5
500
A
Collector-Emitter
V
CE(SAT)
2
All
I
C
= 100 mA, I
B
= 250
A
--
0.9
1.1
V
Saturation Voltage
l
C
= 200 mA, I
B
= 350
A
--
1.1
1.3
V
I
C
= 350 mA, I
B
= 500
A
--
1.3
1.6
V
Input Current
I
IN(ON)
3
ULx2823x
V
IN
= 3.85 V
--
0.93
1.35
mA
ULx2824x
V
IN
= 5.0 V
--
0.35
0.5
mA
V
IN
= 12 V
--
1.0
1.45
mA
I
IN(OFF)
4
All
l
C
= 500
A, T
A
= 70
C
50
65
--
A
Input Voltage
V
IN(ON)
5
ULx2823x
V
CE
= 2.0 V, l
C
= 200 mA
--
--
2.4
V
V
CE
= 2.0 V, I
C
= 250 mA
--
--
2.7
V
V
CE
= 2.0 V, l
C
= 300 mA
--
--
3.0
V
ULx2824x
V
CE
= 2.0 V, l
C
= 125 mA
--
--
5.0
V
V
CE
= 2.0 V, l
C
= 200 mA
--
--
6.0
V
V
CE
= 2.0 V, I
C
= 275 mA
--
--
7.0
V
V
CE
= 2.0 V, l
C
= 350 mA
--
--
8.0
V
Input Capacitance
C
IN
--
All
--
15
25
pF
Turn-On Delayt
PLH
8
All
0.5 E
IN
to 0.5 E
OUT
--
0.25
1.0
s
Turn-Off Delayt
PHL
8
All
0.5 E
IN
to 0.5 E
OUT
--
0.25
1.0
s
Clamp Diode
I
R
6
All
V
R
= 95 V, T
A
= 25
C
--
--
50
A
Leakage Current
V
R
= 95 V, T
A
= 70
C
--
--
100
A
Clamp Diode
V
F
7
All
I
F
= 350 mA
--
1.7
2.0
V
Forward Voltage
Complete part number includes prefix to operating temperature range: ULN = -20
C to +85
C, ULQ = -40
C to +85
C
and a suffix to identify package style: A = DIP, LW = SOIC. Note that the ULQ2823LW and ULQ2824LW are not presently
available.
Types ULx2823A, ULN2823LW, ULx2824A, and ULN2824LW
ELECTRICAL CHARACTERISTICS at +25
C (unless otherwise noted).
The ULx2823 & ULx2824 are discontinued.
Shown for reference only.
2803
THRU
2824
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAYS
www.allegromicro.com
5
TEST FIGURES
Dwg. No. A-9732A
Dwg. No. A-9733A
Dwg. No. A-9734A
FIGURE 6
FIGURE 7
FIGURE 8
Dwg. No. A-9735A
Dwg. No. A-9736A
V
in
ULx28x3x
3.5 V
ULx28x4x
12 V
FIGURE 1A
FIGURE 1B
FIGURE 2
FIGURE 3
FIGURE 4
FIGURE 5
Dwg. No. A-9731A
Dwg. No. A-9730A
Dwg. No. A-9729A
OPEN
OPEN
VCE
ICEX
A
VIN
OPEN
VCE
ICEX
A
IB
OPEN
hFE =
VCE
V
IC
IB
IC
VIN
OPEN
mA
OPEN
IIN
OPEN
VCE
IC
A
IIN
A
V
OPEN
VCE
V
VIN
IC
OPEN
VR
IR
A
IF
OPEN
VF
V
PULSE
GENERATOR
PRR = 10 kHz
DC = 50 %
INPUT
93
100
50 pF
30
OUT
+50 V
Dwg. EP-072
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