ULN2003AD: NPN Transistor, Pinout, Datasheet

The ULN2003AD device is made up of seven NPN Darlington transistor pairs with high voltage and current. Each unit has a common emitter and an open collector output. These units include suppression diodes for inductive loads to maximize their effectiveness. The ULN2003A device features a series base resistor to each Darlington pair, allowing direct operation with TTL or CMOS at 5 V or 3.3 V supply voltages. The ULN2003AD device addresses a wide range of interface requirements, including solenoids, relays, lamps, tiny motors, and LEDs. Applications that require sink currents greater than the capability of a single output can be addressed by paralleling the outputs.

Symbol

Footprint

3D Model

• 500-mA-Rated Collector Current (Single Output)

• High-Voltage Outputs: 50 V

• Output Clamp Diodes

• Inputs Compatible With Various Types of Logic

• Relay-Driver Applications

• Relay Drivers

• Stepper and DC Brushed Motor Drivers

• Lamp Drivers

• Display Drivers (LED and Gas Discharge)

• Line Drivers

• Logic Buffers

ULN2003AD Typical Application Circuit

Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, micro-controllers, and multi-core processors. The company boasts 45,000 patents around the globe as of 2016.