Allegro ULN7003A, ULN7003LW Datasheet
1
2
3
4
5
611
710
89
Note the ULN7003A (DIP) and the ULN7003LW
(SOIC) are electrically identical and share a
common terminal number assignment.
16
15
14
13
12
Dwg. No. A-9594
7003
HIGH-VOLTAGE, HIGH-CURRENT
DARLINGTON ARRAY
Integrating seven high-voltage, high-current npn Darlingtons into
a monolithic power array, the ULN7003A AND ULN7003LW are
designed for interfacing between TTL or CMOS logic and a variety of
peripheral loads. The seven open-collector Darlington outputs are
specified for 135 V minimum breakdown and 90 V minimum sustaining. Included are integral power diodes for switching inductive loads.
Typical applications include relays, lamps, print heads and hammers,
solenoids, and level shifting to power discretes.
The ULN7003A/LW include input current-limiting resistors
compatible with the drive capabilities of TTL and (most) CMOS
operating at a nominal logic supply of 5 V. Operation with 12 V
CMOS may require additional input current limiting.
The high sustaining voltage rating of this power array makes it
ideal for inductive load applications where Zener diode flyback techniques are used. The increased flyback voltage provides a much faster
inductive load turn-off current decay that is especially useful with
dc stepper motors, solenoids, and print heads.
Data Sheet
29304.10A
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Output Voltage, V
Output Sustaining Voltage,
V
CE(sus)
Output Current, I
Input Current, IIN . . . . . . . . . . . . . . . . 25 mA
Package Power Dissipation,
. . . . . . . . . . . . . . . . . . See Graph
P
D
Operating Temperature Range,
. . . . . . . . . . . . . . . -20°C to +85°C
T
A
Storage Temperature Range,
. . . . . . . . . . . . . . -55°C to +150°C
T
S
Output current may be limited by duty cycle,
number of drivers operating, ambient temperature, and heat sinking. Under any set of
conditions, do not exceed the specified maximum
current rating or a junction temperature of 150°C.
. . . . . . . . . . . . . 135 V
CEX
. . . . . . . . . . . . . . . . . . . 90 V
. . . . . . . . . . . . . . 300 mA
C
— April 2, 2001 —
LAST TIME BUY
Both devices are pinned with outputs opposite inputs to facilitate
ease of circuit board layout. The ULN7003A is supplied in a 16-pin
plastic dual in-line package with a copper lead frame to maximize
device power dissipation capabilities. The ULN7003LW is furnished
in a 16-lead small-outline wide-body package for surface-mount
applications.
FEATURES
■ 135 V Minimum Output Breakdown
■ 90 V Minimum Sustaining Voltage
■ 300 mA Output Current
■ Internal High-Current Clamp Diodes
■ Logic-Compatible Inputs
Always order by complete part number:
Part Number Package
ULN7003A 16-Pin DIP
ULN7003LW 16-Lead SOIC
7003
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAY
2.5
2.0
1.5
1.0
0.5
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
SUFFIX 'A', R = 60°C/W
SUFFIX 'LW', R = 80°C/W
0
25
θJA
θJA
50 75 100 125 150
AMBIENT TEMPERATURE IN °C
Dwg. GP-018B
A Zener diode can be used to increase the flyback
voltage. This gives a much faster inductive load turnOFF current decay. The maximum Zener voltage plus
the load supply voltage plus the internal diode forward
voltage must not exceed the device’s rated sustaining
voltage.
PARTIAL SCHEMATIC
(one of seven drivers)
COM
2.7K
7.2K
3K
SWITCHING DELAY TEST CIRCUIT
V
in
0
t
pd
TURN ON TURN OFF
V
out
50%
50%50%
t
pd
50%
Dwg. No. A-9651
OUTPUT
VOLTAGE
OUTPUT
CURRENT
V
V
I
I
CC
CE(SAT)
OUT
CEX
V + V + V
CC Z
ZENER CLAMP
F
V + V
CC F
DIODE CLAMP
Dwg. WP-001
Vin = 3.5 V for ULN7003A
V
in
PULSE
GENERATOR
PRR = 10 kHz
DC = 50%
93 Ω
50 Ω
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1985, 2000 Allegro MicroSystems, Inc.
Dwg. WP-010
50 pF
Dwg. No. WP-010
V
CC
I
C
V
out
Dwg. EP-020
7003
HIGH-VOLTAGE,
HIGH-CURRENT
DARLINGTON ARRAY
ELECTRICAL CHARACTERISTICS at TA = +25°C (unless otherwise noted).
Limits
Characteristic Symbol Test Conditions Min. Typ. Max. Units
V
Output Leakage Current I
Output Sustaining Voltage V
Output Saturation Voltage V
Input Current I
Input Voltage V
CE(sus)
CE(SAT)
IN(ON)
I
IN(OFF)
IN(ON)
Input Capacitance C
Switching Delay t
Clamp Diode Leakage Current I
Clamp Diode Forward Voltage V
CEX
IN
pd
R
F
= 135 V — — 50 µA
CE
= 135 V, TA = +70°C — — 100 µA
V
CE
IC = 250 mA, L = 2 mH 90 — — V
I
= 100 mA, IIN = 250 µA — 1.1 1.3 V
C
= 250 mA, IIN = 350 µA — 1.3 1.6 V
I
C
V
= 3.85 V — 0.93 1.35 mA
IN
I
= 500 µA, TA = +70°C5065—µA
C
VCE = 2.0 V, IC = 200 mA — — 2.4 V
= 2.0 V, IC = 250 mA — — 2.7 V
V
CE
—1525pF
Turn On, IC = 250 mA — 0.05 1.0 µs
Turn Off, I
V
= 150 V — — 50 µA
R
= 150 V, TA = +70°C — — 100 µA
V
R
I
= 250 mA — 1.7 2.0 V
F
= 250 mA — 0.5 1.0 µs
C
Typical Data is for design information only.
www.allegromicro.com
TYPICAL INPUT CURRENT
AS A FUNCTION OF INPUT VOLTAGE
at TA = +25°C
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