ULN2003LV
www.ti.com
SLRS059A –APRIL 2012–REVISED APRIL 2012
7-Channel Relay and Inductive Load Sink Driver
Check for Samples: ULN2003LV
1
FEATURES
DESCRIPTION
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7-Channel High Current Sink Drivers
The ULN2003LV is a low-voltage and low power
upgrade of TI’s popular ULN2003 family of 7-channel
Darlington transistor array. The ULN2003LV sink
driver features 7 low output impedance drivers to
support low voltage relay and inductive coil
applications. The low impedance drivers minimize on-
chip power dissipation; up to 5 times lower for typical
3V relays. The ULN2003LV driver is pin-to-pin
compatible with ULN2003 family of devices in similar
packages.
Supports up to 8V Ouput Pull-up Voltage
Supports a Wide Range of 3V-to-5V Relay and
Inductive Coils
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Low Output VOL of 0.4V (Typical) with
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100mA (Typical) Current Sink per Channel
at 3.3V Logic Input(1)
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140mA (Typical) Current Sink per Channel
at 5.0V Logic Input(1)
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Compatible to 3.3V and 5.0V Micro-controllers
and Logic Interface
The ULN2003LV supports 3.3V to 5V CMOS logic
input interface thus making it compatible to a wide
range of micro-controllers and other logic interfaces.
The ULN2003LV features an improved input interface
that minimizes the input DC current drawn from the
external drivers. The ULN2003LV features an input
RC snubber that greatly improves its performance in
noisy operating conditions. The ULN2003LV channel
inputs feature an internal input pull-down resistor thus
allowing input logic to be tri-stated. The ULN2003LV
may also support other logic input levels, e.g. TTL
and 1.8V, refer to the Application Information section
for details.
Internal Free-wheeling Diodes for Inductive
Kick-back Protection
Input Pull-down Resistors Allows3-stating the
Input Driver
Input RC-Snubber to Eliminate Spurious
Operation in Noisy Environment
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Low Input and Output Leakage Currents
Easy to use Parallel Interface
ESD Protection Exceeds JESD 22
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2kV HBM, 500V CDM
As shown in Table 1, each output of the ULN2003LV
features an internal free-wheeling diode connected in
a common-cathode configuration at the COM pin.
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(1)
Available in 16-pin SOIC and TSSOP Packages
Total current sink may be limited by the internal junction
temperature, absolute maximum current levels etc - refer to
the Electrical Specifications section for details.
The ULN2003LV provides flexibility of increasing
current sink capability through combining several
adjacent channels in parallel. Under typical conditions
the ULN2003LV can support up to 1.0A of load
current when all 7-channels are connected in parallel.
APPLICATIONS
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Relay and Inductive Load Driver in Various
Telecom, Consumer, and Industrial
Applications
The ULN2003LV can also be used in a variety of
other applications requiring a sink drivers. The
ULN2003LV is available in 16-pin SOIC and 16-pin
TSSOP packages.
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Lamp and LED Displays
Logic Level Shifter
Table 1. ULN2003LV Function Table(1)
Functional Diagram
INPUT (IN1 – IN7)
OUTPUT (OUT1–OUT7)
OUT1
16
1
IN1
L
H
Z
H+(2)
2
3
4
5
6
15 OUT2
IN2
IN3
L
H+(2)
14
OUT3
OUT4
OUT5
13
12
11
10
IN4
(1) L = Low-level (GND); H= High-level; Z= High-impedance;
(2) H+ = Pull-up-level
IN5
IN6
OUT6
OUT7
COM
7
8
IN7
9
GND
ULN2003LV TSSOP/SOIC
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated