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Texas Instruments Darlington Transistor Array ULN2003 (4 pack)

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Texas Instruments
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 Product Description

Texas Instruments Darlington Transistor Array (4 pack)


  •  resistor to allow operation directly from CMOS 1
  • 500-mA-Rated Collector Current (Single Output) devices that use supply voltages of 6 V to 15 V. The
  •  Inputs Compatible With Various Types of Logic devices.
  • Stepper and DC Brushed Motor Drivers ULx200xD SOIC (16) 9.90 mm × 3.91 mm
  • Lamp Drivers ULx200xN PDIP (16) 19.30 mm × 6.35 mm
  • Display Drivers (LED and Gas Discharge) ULN200xNS SOP (16) 10.30 mm × 5.30 mm ULN200xPW TSSOP (16) 5.00 mm × 4.40 mm
  • Line Drivers
  • Logic Buffers



The ULx200xA devices are high-voltage, high-current .Darlington transistor arrays. Each consists of seven NPN Darlington pairs that feature high-voltage Simplified Block Diagramoutputs with common-cathode clamp diodes for switching inductive loads.
The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. For 100-V (otherwise interchangeable) versions of the ULx2003A devices, see the SLRS023 data sheet for the SN75468 and SN75469 devices.
The ULN2002A device is designed specifically for use with 14-V to 25-V PMOS devices. Each input of this device has a Zener diode and resistor in series to control the input current to a safe limit. The ULx2003A devices have a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.

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