Details, datasheet, quote on part number: ULN2003LV
CategorySemiconductors => Power Management => Peripheral Driver and Actuator
Part familyULN2003LV Low Power 3.3V & 5V Relay Driver
Title7-Channel Relay and Inductive Load Sink Driver
DescriptionLow Power 3.3V & 5V Relay Driver 16-SOIC -40 to 85
CompanyTexas Instruments, Inc.
DatasheetDownload ULN2003LV datasheet
Package GroupSOIC,TSSOP
Input CompatibilityCMOS
Drivers Per Package7
Approx. Price (US$)0.53 | 100u
Output Voltage(Max)(V)8
Peak Output Current(mA)1000
Vol@Lowest Spec Current(Typ)(mV)260
Switching Voltage(Max)(V)8
Delay Time(Typ)(ns)80
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
16DSOICR-PDSO-G2500LARGE T&RUN2003LV 3.919.91.581.27
Application notes
• Stepper Motor Driving with Peripheral Drivers (Rev. A)
This application report describes in detail how to interface stepper motors with TI peripheral drivers. Primarily, this report discusses how to connect and drive stepper motors, including the stepper motor driving patterns. Advantages and disadvantages to | Doc
• Improved Thermal Dissipation and Energy Efficiency for Peripheral Driving | Doc
Evaluation Kits
ULN2003LVEVM: ULN2003LV Evaluation Module


Features, Applications


7-Channel High Current Sink Drivers Supports 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 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 2kV HBM, 500V CDM 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 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 onchip power dissipation; 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 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 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. Table 1. ULN2003LV Function Table(1)


Relay and Inductive Load Driver in Various Telecom, Consumer, and Industrial Applications Lamp and LED Displays Logic Level Shifter

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.

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

85C (1) PART NUMBER ULN2003LVPWR 16-Pin SOIC 16-Pin TSSOP PACKAGE Reel of 2500 Reel of 2000 TOP-SIDE MARKING UN2003LV

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at

VALUE MIN VIN VOUT VCOM IGND PD ESD TA TJ Tstg (1) Pins IN7 to GND voltage Pins OUT7 to GND voltage Pin COM to GND voltage Max GND-pin continuous current (TJ > +125C) Max GND-pin continuous current (TJ < +100C) Total device power dissipation = 85C ESD Rating HBM ESD Rating CDM Operating free-air ambient temperature range Operating virtual junction temperature Storage temperature range Pin - SOIC 16 Pin -TSSOP 0.3 MAX UNIT V C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.


Maximum dissipation values for retaining device junction temperature of 150C Refer to TI's design support web page at for improving device thermal performance Operating at the absolute TJ-max of 150C can affect reliability for higher reliability it is recommended to ensure < 125C

Submit Documentation Feedback Product Folder Link(s): ULN2003LV

Specified over the recommended junction temperature range to 125C unless otherwise noted. Typical values are = 25C.

PARAMETER INPUTS IN1 THROUGH IN7 PARAMETERS VI(ON) VI(OFF) II(ON) II(OFF) IN1IN7 logic high input voltage IN1IN7 logic low input voltage IN1IN7 ON state input current IN1IN7 OFF state input leakage Vpull-up 3.3 V, Rpull-up 1 k, IOUTX 3.2 mA Vpull-up 3.3 V, Rpull-up 1 k, (IOUTX = <5 A) Vpull-up 3.3 V, VINx 3.3 V Vpull-up 3.3 V, VINx 0 V VINX 3.3 V, IOUTX 50 mA VOL(VCE-SAT) OUT1OUT7 low-level output voltage VINX 3.3 V, IOUTX 100 mA VINX 5.0 V, IOUTX 100 mA VINX 5.0 V, IOUTX 140 mA IOUT(ON) IOUT(OFF)(ICEX) OUT1OUT7 ON-state continuous current (2) at VOUTX 0.4V OUT1OUT7 OFF-state leakage current VINX 3.3 V, VOUTX 0.4 V VINX 5.0 V, VOUTX 0.4 V VINX 0 V, VOUTX = VCOM 8 V VINX = 3.3V, Vpull-up 3.3 V, Rpull-up = 50 VINX = 5.0V, Vpull-up 5 V, Rpull-up 1 k VINX = 3.3V, Vpull-up 3.3 V, Rpull-up = 50 VINX = 5.0V, Vpull-up 5 V, Rpull-up nA V TEST CONDITIONS MIN TYP MAX UNIT

SWITCHING PARAMETERS (3) (4) tPHL tPLH RPD COUT VF IF-peak OUT1OUT7 logic high propagation delay 300k 9 VINX 3.3 V, VOUTX 0.4 V IF-peak = 140 mA, VF = VOUTx VCOM, 390k ns

OUT1OUT7 logic low propagation delay IN1IN7 input pull-down Resistance IN1IN7 Input filter time constant OUT1OUT7 output capacitance

FREE-WHEELING DIODE PARAMETERS (5) (4) Forward voltage drop Diode peak forward current V mA

The typical continuous current rating is limited by VOL= 0.4V. Whereas, absolute maximum operating continuous current may be limited by the Thermal Performance.parameters listed in the Dissipation Rating Table and other Reliability parameters listed in the Recommended Operating ConditionsTable. Refer to the Absolute Maximum Ratings Table for TJ dependent absolute maximum GND-pin current. Rise and Fall propagation delays, tPHL and tPLH, are measured between 50% values of the input and the corresponding output signal amplitude transition. Guaranteed by design only. Not rated for continuous current operation for higher reliability use an external freewheeling diode for inductive loads resulting in more than specified maximum free-wheeling. diode peak current across various temperature conditions


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