ULN2002AD16-U

Overview

The ULN2002AD16-U is a high-voltage, high-current Darlington transistor array manufactured by Diodes Incorporated. It integrates seven open-collector common-emitter pairs within a single SO-16 package. Each channel supports a rated collector current of 500 mA and withstands peak currents up to 600 mA. The device features an output voltage rating of 50 V and includes integrated suppression diodes for inductive load driving. Designed for compatibility with 14 V to 25 V PMOS logic families, the inputs are pinned opposite the outputs to simplify board layout.

Feature Summary

• Integrates seven open-collector Darlington pairs with common emitters
• Includes built-in suppression diodes for direct inductive load driving
• Features input-output opposition pinning to facilitate simplified PCB layout

Applications

• Driving solenoids and relays
• Controlling DC motors
• Powering LED displays and filament lamps
• Operating thermal print-heads
• Functioning as high-power buffers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and tape-and-reel specifications. Confirm that the component meets all required environmental compliance standards, including RoHS and halogen-free definitions, prior to final procurement decisions.

Selection Notes

Select this component when interfacing with 14 V to 25 V PMOS logic families. Ensure the application requires a 50 V output voltage capability and a continuous current rating of 500 mA per channel. Verify that the SO-16 surface-mount package aligns with the available board space and thermal management requirements.

Part Context

This part belongs to the ULN200xA series of high-voltage Darlington arrays from Diodes Incorporated. The series includes variants such as the ULN2003A for 5 V TTL/CMOS and the ULN2004A for 6 V to 15 V CMOS/PMOS. All members share the same core architecture but differ in internal base resistors to optimize compatibility with their respective logic families.

Replacement Considerations

Compatible substitutes include the ULN2003A for 5 V logic applications and the ULN2004A for 6 V to 15 V CMOS or PMOS systems. Cross-model replacement requires verifying logic family compatibility and ensuring the alternative variant matches the required operating voltage and current specifications.