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Product Detailed Parameters
- Description：SEVEN CHANNELS 50V SOP-16
- Series：-
- Mfr：Shenzhen Slkormicro Semicon Co., Ltd.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：7 NPN Darlington
- Current - Collector (Ic) (Max)：500mA
- Voltage - Collector Emitter Breakdown (Max)：50V
- Vce Saturation (Max) @ Ib, Ic：1.6V @ 500µA, 350mA
- Current - Collector Cutoff (Max)：50µA
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：950mW
- Frequency - Transition：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOP
- Grade：-
- Qualification：-
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Overview
The ULN2003AU is a high-voltage, high-current Darlington array manufactured by Shenzhen SLKORMicro Semicon Co., Ltd. It contains seven open-collector Darlington pairs with common emitters within a single package. Each channel provides an output current rating of 500 mA and can withstand peak currents up to 600 mA. The device supports an output voltage of 50 V and includes integrated suppression diodes for driving inductive loads. Inputs are compatible with TTL, CMOS, PMOS, and DTL logic families. The 'AU' suffix indicates availability in a small outline package (SO-16), offering reduced thermal resistance compared to standard DIP versions.
Feature Summary
- Seven integrated Darlington pairs per package
- Integrated suppression diodes for inductive load protection
- TTL/CMOS/PMOS/DTL input compatibility
- Input pins placed opposite outputs to simplify board layout
Applications
- Driving solenoids and relays
- DC motor control
- LED display and filament lamp drivers
- Thermal printhead actuation
- High-power buffer circuits
Procurement Notes
Verify the manufacturer designation on the component marking against Shenzhen SLKORMicro Semicon Co., Ltd. specifications. Confirm the SO-16 package type corresponds to the 'U' suffix in the part number ULN2003AU. Ensure the datasheet confirms the specific electrical characteristics and pinout configuration required for the target application design.
Selection Notes
Select this component when interfacing low-power logic outputs with high-current or high-voltage inductive loads. The integrated flyback diodes eliminate the need for external snubber circuits in many applications. Verify that the 500 mA per channel rating meets the load requirements, as paralleling outputs may be necessary for higher current demands.
Part Context
This component belongs to the ULN200x family of Darlington arrays, which includes variants like ULN2003AN (DIP) and ULN2004. The ULN2003AU specifically denotes the surface-mount SO-16 variant. It serves as a direct interface between microcontrollers and power devices, simplifying driver circuit design by combining amplification and protection functions in a single integrated circuit.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer cross-reference lists for verified alternatives.
