Texas Instruments ULN200x NPN Darlington Transistor Array DIP 16-Pin

The Texas Instruments ULN200x NPN Darlington Transistor Array is a 16-pin DIP driver integrated circuit that switches loads up to 50 V and 500 mA per channel.

Overview

The ULN200x contains seven independent open-collector Darlington pairs with common emitters, housed in a standard 16-pin DIP (Dual In-line Package). It is designed to interface between low-level logic circuits and higher power loads, providing current amplification for driving external devices.

Key Features

• Built-in suppression diode across each output, providing protection for the transistors when switching inductive loads such as relays and motors, and helping to prevent damage from back EMF.
• Open-collector outputs that can be paralleled together to achieve higher current handling capability.
• Input stage compatible with TTL, CMOS, PMOS, and DTL logic families.
• Input pins placed directly opposite their corresponding output pins, simplifying printed circuit board layout and routing.

Applications

The array is suited to controlling relay coils, driving stepper motors and DC brushed motors, powering indicator lamps, and driving display elements such as LEDs or gas-discharge panels. It can also be used as a line driver or logic buffer to drive multiple inputs or long lines.

Specifications

• Transistor Type: NPN Darlington array
• Channels: Seven independent Darlington pairs
• Switching Load Voltage: Up to 50 V
• Current per Channel: Up to 500 mA
• Total Power Dissipation: 25 W
• DC Current Gain (hFE): 600
• Package: 16-pin DIP
• Mounting: Through-hole
• Width: 3.3, Depth: 1.5, Height: 4.3
• Weight: 1.678 g

Choose the Texas Instruments ULN200x NPN Darlington Transistor Array DIP 16-Pin when you need a seven-channel driver for interfacing logic circuits with higher power loads.