The ULN2065NE from Texas Instruments is a high-voltage, high-current Darlington transistor array designed for applications requiring relay drivers, display drivers, line drivers, and logic buffers. This integrated circuit consists of four NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of a single Darlington pair is 1.5 A. The pairs can be connected in parallel for higher current capability.
Key Features
- High-Voltage Outputs: The ULN2065NE can handle output voltages up to 50V, making it suitable for interfacing with higher voltage systems.
- High-Current Handling: Each of the four included Darlington pairs can handle a collector current of 1.5 A, with the capability to parallel pairs for increased current.
- Integrated Clamp Diodes: The presence of built-in clamp diodes allows this array to switch inductive loads while protecting the circuit from voltage spikes.
- Wide Operating Temperature Range: This device operates efficiently across a wide temperature range, from -20°C to 85°C, ensuring reliability in various environments.
- Output Clamp Voltage: The ULN2065NE provides an output clamp voltage of 50V, which is beneficial for driving inductive loads.
Applications
The versatility of the ULN2065NE makes it an excellent choice for a wide range of applications, including:
- Relay Drivers
- Stepper and DC Motor Drivers
- LED and Display Drivers
- Buffer Circuits
Product Specifications
| Parameter |
Value |
| Output Voltage (max) |
50V |
| Collector Current (per Darlington pair) |
1.5A |
| Clamp Diodes |
Yes |
| Operating Temperature Range |
-20°C to 85°C |
With its robust design and high-performance capabilities, the ULN2065NE by Texas Instruments is a reliable and efficient solution for driving high-current loads in your electronic projects.