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Product Detailed Parameters
- Description：TRANS 7NPN DARL 50V 0.5A 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 ~ 70°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 ULN2003ADRG3 is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven NPN Darlington pairs with common emitters and integrated clamp diodes for inductive load suppression. The device operates with a maximum continuous collector current of 500 mA per channel and a collector-emitter voltage rating of 50 V. It features a saturation voltage of 1.1 V and an emitter-base voltage of 50 V. The component supports a junction temperature range from -40°C to 125°C and is housed in a 16-pin SOIC surface-mount package.
Feature Summary
- Integrates seven independent NPN Darlington pairs with common cathode clamp diodes for efficient switching of inductive loads.
- Provides high current gain exceeding 1000, enabling direct interfacing with TTL, CMOS, PMOS, and DTL logic families without external driver components.
- Features input pins positioned opposite to corresponding output pins to facilitate simplified printed circuit board layout.
Applications
- Stepper motor drivers
- Relay drivers
- Hammer driver circuits
Procurement Notes
Verify the specific suffix 'RG3' against the manufacturer's official documentation to confirm it denotes the standard tape-and-reel packaging format. Ensure the ordering information matches the exact part number to avoid discrepancies in package type or electrical characteristics during procurement.
Selection Notes
Select this component when a single IC must drive multiple high-voltage or high-current loads such as solenoids or relays. The internal clamp diodes eliminate the need for external flyback protection. Verify that the required logic family compatibility aligns with the internal base resistors before finalizing the design.
Part Context
This component belongs to the ULN200xA series of high-voltage, high-current Darlington arrays. It serves as a monolithic power switching solution designed to replace discrete transistor networks. The series is widely utilized in applications requiring robust control of heavy loads from low-power digital sources.
Replacement Considerations
Compatible substitutes include the ULN2003AN (through-hole) and ULN2003A (standard SOIC). Cross-reference with ILN2003A or MC1413 variants if pinout and electrical parameters match the application requirements.
