B2B Enquiry:
The UDN2981 IC – High-Voltage 8-Channel Source Driver is a versatile and powerful integrated circuit designed to drive high-side loads directly from low-level logic signals. It can source up to 500mA per channel with voltages ranging from 5V to 50V, making it ideal for interfacing logic systems with high-current components like LEDs, relays, solenoids, motors, and printer mechanisms.
This IC features 8 independently controlled outputs, a 1:1 input-to-output configuration, and is designed for easy use with TTL, Schottky TTL, DTL, and 5V CMOS logic levels. Built-in input current limiting resistors and output transient suppression diodes improve protection and stability, while its copper lead frame and DIP package ensure enhanced heat dissipation during operation.
The UDN2981A variant includes an 18-DIP through-hole package and is best suited for through-hole PCB assembly. Its active-high input design makes it intuitive for integration into most Arduino, PIC, or embedded circuits.
🔧 Key Features
- High-voltage 8-channel source driver IC
- Compatible with 5V logic: TTL, CMOS, Schottky TTL
- 500mA max output per channel
- Supports 5V–50V load voltages
- Active-high logic input type
- Input-to-output ratio: 1:1
- Built-in suppression diodes and input resistors
- Excellent for relays, LEDs, motors, solenoids
📐 Technical Specifications
| Product Name | UDN2981 IC – High-Voltage 8-Channel Source Driver |
| Part Number | UDN2981A |
| Voltage – Load | 5V to 50V |
| Output Current (Max) | 500mA per channel |
| Input Type | Non-Inverting |
| Output Configuration | High-Side |
| Output Type | Bipolar |
| Number of Outputs | 8 |
| Interface | On/Off |
| Ratio – Input:Output | 1:1 |
| Operating Temperature | -20°C to +85°C |
| Mounting Type | Through Hole |
| Package | 18-DIP (Copper Lead Frame) |
| Use Case | LED drivers, relay control, solenoids, display drivers |
📌 Applications
- Driving LED arrays and displays
- Relay and solenoid switching
- Stepper and servo motor high-side drive
- Control of high-current loads via logic signals
- Industrial controls and signal interfacing
💡 Why Choose This Product?
The UDN2981 IC is a reliable and robust high-side source driver for use in a wide range of automation, control, and display applications. Its high voltage and current support, paired with built-in protection and simple interface, make it a versatile and cost-effective driver solution for engineers and hobbyists alike.
📦 Package Includes
- 1 × UDN2981 IC – 8-Channel Source Driver (DIP-18)
Reviews
There are no reviews yet