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Texas Instruments ULQ2004ADR — Analog & Data Acquisition

ULQ2004ADR 7-Ch NPN Low-Side Driver, 500mA, 50V, SOIC-16

MPNULQ2004ADR
End of Life

Texas Instruments ULx200xA series, ULQ2004ADR, 7-channel NPN low-side driver, 500 mA per output, 50 V load max, inverting input, 16-SOIC package, -40 to 85°C operating temperature.

$0.61Ref. price · indicative, final on quote
Texas Instruments ULQ2004ADR datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesULx200xA
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ULQ2004ADR specifications
ParameterValue
SeriesULx200xA
Input typeInverting
Output typeNPN
TypeRelay, Solenoid Driver
MountingSurface Mount
Voltage - load50V (Max)
Voltage - supply (Vcc (Vdd))Not Required
Output current500mA
I/O channels7
InterfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case16-SOIC (0.154\", 3.90mm Width)
Output configurationLow Side
Ratio - Input:Output1:1

Product details

The Texas Instruments ULQ2004ADR is a 7-channel NPN Darlington transistor array configured as a low-side switch, designed to drive relays, solenoids, stepper motors, and other inductive or resistive loads from logic-level control signals. Each of the seven outputs is rated for 500 mA continuous current and can handle a load voltage up to 50 V.

Package and rework — 16-SOIC is bench-friendly

The ULQ2004ADR comes in a 16-SOIC body measuring 3.90 mm wide — a standard footprint that reflows cleanly with a hot-air station or convection oven.

This part is RoHS3 compliant.

Frequently asked questions

What is the maximum output current of ULQ2004ADR?

This is the per-channel limit; the total package current is thermally derated when all channels are active simultaneously.

What is the closest pin-compatible alternative to ULQ2004ADR in this component family?

The ULN2004A is the same Darlington array in DIP-16 or SOIC-16 packages, with identical pinout and electrical ratings. The ULQ2004A is the automotive AEC-Q100 qualified variant. Both are direct functional replacements for the ULQ2004ADR.

Is ULQ2004ADR compatible with 5V logic?

Yes, the inputs are inverting and accept standard TTL or 5 V CMOS logic levels directly. No external base resistors or level shifters are needed when driving from a 5 V microcontroller or FPGA output.