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Product Detailed Parameters
- Description：IC PWR DRIVER NPN 1:1 16SOIC
- Series：ULx200xA
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：-
- Frequency - Transition：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The ULQ2004ADR is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven independent NPN Darlington pairs within a single SOIC-16 surface-mount package. Each channel provides a maximum continuous collector current of 300 mA and supports a collector-emitter voltage of 50 V. The device features internal clamping diodes across each output and common terminal to suppress inductive kickback from load switching. It operates within an ambient temperature range of -40°C to +85°C and dissipates up to 1 W of power.
Feature Summary
- Integrates seven independent high-voltage Darlington transistor channels for simplified driver circuit design
- Includes built-in freewheeling diodes on all outputs to protect against inductive load transients
- Designed for direct interface with TTL, CMOS, or microcontroller logic outputs
Applications
- Relay driver circuits for industrial control systems
- Solenoid and valve actuation interfaces
- Stepper motor phase driving
Procurement Notes
Verify the specific suffix 'ADR' to confirm the tape-and-reel packaging format required for automated assembly processes. Confirm that the component meets RoHS compliance standards relevant to the target manufacturing region. Ensure the selected distributor sources directly from authorized channels to prevent counterfeit components. Validate that the SOIC-16 footprint matches the PCB layout specifications before finalizing procurement orders.
Selection Notes
Select this component when seven discrete high-current switching channels are required in a compact surface-mount form factor. The ULQ2004ADR offers higher current density compared to standard ULN2003 variants. Consider the thermal performance of the SOIC package if multiple channels operate simultaneously under heavy loads. Verify that the 50 V rating aligns with the maximum voltage spikes generated by the intended inductive loads.
Part Context
The ULQ2004ADR belongs to the ULQ2004A family of high-voltage Darlington arrays. It serves as the automotive-grade counterpart to the commercial ULN2004 series. This family is designed to replace multiple discrete transistors and protection diodes in legacy designs. The part number indicates a specific pinout configuration optimized for driving high-inductance loads efficiently.
Replacement Considerations
The ULN2004AD is a commercially rated equivalent with identical electrical characteristics but may lack automotive qualification. The ULQ2004A is the broader family designation covering various packaging options.
