Description

Product Category: Transistors (BJT) - Arrays

Octal High Voltage, High Current Darlington Transistor Arrays

The ULN2803AD is an electronic component model that belongs to the Transistors (BJT) - Arrays product category. It is an octal high voltage, high current Darlington transistor array.

These arrays consist of eight NPN Darlington connected transistors, which make them ideal for interfacing between low logic level digital circuitry (such as TTL, CMOS or PMOS/NMOS) and higher current/voltage requirements of lamps, relays, printer hammers, or other similar loads. They have a wide range of applications in computer, industrial, and consumer settings.

All devices in this family of arrays feature open-collector outputs and free-wheeling clamp diodes for transient suppression. The ULN2803AD is designed to be compatible with standard TTL families, while the ULN2804 is optimized for 6 to 15 volt high level CMOS or PMOS.

Specifications and features

- Product Category: Transistors (BJT) - Arrays

- Octal High Voltage, High Current Darlington Transistor Arrays

- Eight NPN Darlington connected transistors

- Designed for interfacing between low logic level digital circuitry and higher current/voltage loads

- Suitable for a wide range of computer, industrial, and consumer applications

- Open-collector outputs and free-wheeling clamp diodes for transient suppression

- ULN2803 designed for compatibility with standard TTL families

- ULN2804 optimized for 6 to 15 volt high level CMOS or PMOS

Application Scenarios

- Interfacing between low logic level digital circuitry and higher current/voltage loads

- Suitable for computer, industrial, and consumer applications

- Can be used with lamps, relays, printer hammers, and similar loads

Comparison

Advantages:

• Octal high voltage, high current Darlington transistor array
• Wide range of applications in computer, industrial, and consumer settings
• Open-collector outputs and free-wheeling clamp diodes for transient suppression

Disadvantages:

• ULN2803 is designed for compatibility with standard TTL families only
• ULN2804 is optimized for 6 to 15 volt high level CMOS or PMOS