ULN2003LV Datasheet, PDF (1/19 Pages) Texas Instruments – 7-Channel Relay and Inductive Load Sink Driver

ULN2003LV
www.ti.com
SLRS059A – APRIL 2012 – REVISED APRIL 2012
7-Channel Relay and Inductive Load Sink Driver
Check for Samples: ULN2003LV
FEATURES
1
• 7-Channel High Current Sink Drivers
• Supports up to 8V Ouput Pull-up Voltage
• Supports a Wide Range of 3V-to-5V Relay and
Inductive Coils
• Low Output VOL of 0.4V (Typical) with
– 100mA (Typical) Current Sink per Channel
at 3.3V Logic Input⁽¹⁾
– 140mA (Typical) Current Sink per Channel
at 5.0V Logic Input⁽¹⁾
• Compatible to 3.3V and 5.0V Micro-controllers
and Logic Interface
• 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
• Low Input and Output Leakage Currents
• Easy to use Parallel Interface
• ESD Protection Exceeds JESD 22
– 2kV HBM, 500V CDM
• Available in 16-pin SOIC and TSSOP Packages
(1) _{Total current sink may be limited by the internal junction}
temperature, absolute maximum current levels etc - refer to
the Electrical Specifications section for details.
APPLICATIONS
• Relay and Inductive Load Driver in Various
Telecom, Consumer, and Industrial
Applications
• Lamp and LED Displays
• Logic Level Shifter
DESCRIPTION
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.
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.
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.
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.
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.
Functional Diagram
IN1 1
IN2 2
IN3 3
IN4 4
IN5 5
IN6 6
IN7 7
GND 8
16 OUT1
15 OUT2
14 OUT3
13 OUT4
12 OUT5
11 OUT6
10 OUT7
9 COM
Table 1. ULN2003LV Function Table⁽¹⁾
INPUT (IN1 – IN7)
L
OUTPUT (OUT1–OUT7)
H⁺⁽²⁾
H
L
Z
H⁺⁽²⁾
(1) L = Low-level (GND); H= High-level; Z= High-impedance;
(2) H⁺ = Pull-up-level
ULN2003LV TSSOP/SOIC
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
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