The ULN2804LW from Texas Instruments is a robust, high-performance integrated circuit designed to drive a wide array of loads with high efficiency and reliability. This octal Darlington transistor array is capable of driving high voltage and high current loads, making it an ideal choice for interfacing with logic systems and driving inductive loads such as relays, solenoids, and stepper motors.
Key Features
- High Voltage Outputs: The ULN2804LW can handle output voltages up to 50V, making it suitable for a variety of demanding applications.
- High Current Capability: With a peak current rating of 500mA per channel, it can easily drive multiple devices simultaneously.
- Thermal Shutdown Protection: Built-in thermal shutdown protection ensures that the device operates within safe temperature limits, enhancing its durability and reliability.
- Input-Compatible with Popular Logic Types: The inputs are compatible with various types of logic, such as TTL, 5V CMOS, and PMOS, allowing for easy integration into a wide range of designs.
- Integral Suppression Diodes: Suppression diodes are included for inductive load transient suppression, which is essential when controlling relays, solenoids, or motors.
Applications
The versatility of the ULN2804LW makes it suitable for an extensive array of applications, including:
- Relay Drivers
- Stepper Motor Controllers
- LED Displays / LED Matrix Drivers
- Logic Buffers
- Line Drivers
- Hammer Drivers
Product Specifications
| Parameter |
Value |
| Output Voltage (max) |
50V |
| Output Current (max per channel) |
500mA |
| Input Voltage |
5V |
| Package |
18-Pin Wide Body SOIC |
For engineers and designers looking for a reliable solution to drive high-power loads with digital logic signals, the ULN2804LW from Texas Instruments provides a high-quality, versatile option that can be integrated into a multitude of electronic projects and commercial devices.