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ULN2004ADR

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Texas Instruments Darlington Transistor Arrays, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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ULN2004ADR

Texas Instruments · Darlington Transistor Arrays · SOIC-16

ULN2004ADR from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1B input Channel 1 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor; drives 1C output low when asserted.
2 2B input Channel 2 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor.
3 3B input Channel 3 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor.
4 4B input Channel 4 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor.
5 5B input Channel 5 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor.
6 6B input Channel 6 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor.
7 7B input Channel 7 Darlington base input. CMOS-compatible via internal 10.5 kΩ series base resistor.
8 E power_in Common emitter shared by all seven Darlington channels; typically tied to ground. All voltage references in the datasheet are with respect to this terminal.
9 COM power_in Common cathode node for the internal flyback clamp diodes. Must be connected to the load supply (VS) when driving inductive loads to clamp back-EMF; clamp reverse voltage rated 50 V max.
10 7C output Channel 7 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current, VCE(sat) ≈ 1.1 V at 100 mA.
11 6C output Channel 6 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current.
12 5C output Channel 5 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current.
13 4C output Channel 4 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current.
14 3C output Channel 3 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current.
15 2C output Channel 2 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current.
16 1C output Channel 1 Darlington collector (open-collector, active-low sink). Rated 50 V VCE, 500 mA single-output collector current, VCE(sat) ≈ 1.1 V at 100 mA.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Transistors/Thyristors
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • ULN2004ADR
  • ULN2004ADRD
  • ULN2004ADRN
  • ULN2004ADRNS
  • ULN2004ADRPW
  • ULN2004ADRPWR

CAD (KiCad official)

  • Symbol: ULN2004ADR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 0151daa4ffa9135f, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF