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ULN2803A-EV is listed in the Inverter Gates range at ChipApex. The manufacturer field lists EVVO. Its product description is SOP-18 DARLINGTON TRANSISTOR ARR. Review the specifications below when checking this part for your BOM.
Inverter Gates specifications for ULN2803A-EV
- Description：SOP-18 DARLINGTON TRANSISTOR ARR
- Series：-
- Mfr：EVVO
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：-
- Number of Circuits：-
- Number of Inputs：-
- Features：-
- Voltage - Supply：-
- Current - Quiescent (Max)：-
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Grade：-
- Qualification：-
Inverter Gates datasheet and documents for ULN2803A-EV
Inverter Gates Overview
The ULN2803A-EV is a high-voltage, high-current Darlington transistor array manufactured by EVVO. It integrates eight NPN Darlington pairs with common emitters and open-collector outputs. Each channel includes a 2.7kΩ series base resistor for direct TTL and 5V CMOS compatibility. The device supports a maximum collector current of 500mA per pair and withstands up to 50V in the off state. It operates within an ambient temperature range of -40°C to +85°C and is available in a 18-SOP surface-mount package.
Inverter Gates Feature Summary
- Integrates eight NPN Darlington pairs with common emitter configuration
- Includes internal 2.7kΩ base resistors for direct logic interface
- Features open-collector outputs with integral clamp diodes for inductive load switching
Inverter Gates Applications
- Relay drivers
- Hammer drivers
- Stepping motor drivers
- Magnetic valve control
- DC brushless motor drivers
Inverter Gates Procurement Notes
Verify the specific package variant (SOP-18 or DIP-18) against the project requirements before ordering. Confirm that the operating voltage and current ratings align with the intended load specifications. Ensure thermal management strategies are adequate for continuous operation at elevated temperatures. Check RoHS compliance status if environmental regulations apply to the final assembly.
Inverter Gates Selection Notes
Select this component when interfacing low-level digital logic with high-current loads requiring high voltage tolerance. The integrated base resistors simplify circuit design by eliminating external components. Consider parallel connection of channels if higher current capacity than 500mA is required. Verify input voltage levels match the TTL or 5V CMOS standards supported by the internal resistance network.
Inverter Gates Part Context
This part belongs to the ULN2803 family of Darlington arrays designed for driving inductive loads. It serves as a bridge between microcontrollers or logic gates and power devices like relays and motors. The EVVO version maintains standard pinout compatibility while offering surface-mount packaging options for automated assembly processes.
Inverter Gates Replacement Considerations
Compatible substitutes include ULN2803AN and ULN2803A from other manufacturers. Ensure replacement parts maintain the same 18-pin configuration and electrical characteristics. Verify that alternative sources offer equivalent saturation voltage and leakage current specifications.
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