The Texas Instruments UN2003A is a versatile and robust integrated circuit designed for driving stepper motors and other inductive loads. This device is part of the renowned ULN2003 series, which are high-voltage, high-current darlington arrays containing seven open collector darlington pairs with common emitters. Each channel is rated at 500mA and can withstand peak currents of 600mA. The suppression diodes for inductive loads are integrated for added convenience and improved performance.

Key Features

• High-Voltage Outputs: The UN2003A can handle output voltages up to 50V, making it suitable for a range of industrial applications.
• High-Current Capability: Each of the seven darlington pairs can deliver up to 500mA, with the capability to handle peak currents of 600mA.
• Integrated Suppression Diodes: Diodes are included to protect against voltage spikes when driving inductive loads, simplifying circuit design and enhancing reliability.
• Wide Operating Temperature Range: The device is operational over a temperature range of -20°C to 85°C, suitable for challenging environments.
• Multiple Package Options: Available in standard DIP and SOIC packages, the UN2003A provides flexibility for both through-hole and surface-mount applications.

Applications

The UN2003A is ideal for driving a wide array of devices that require high-current and/or high-voltage switching. Common applications include:

• Stepper motor drivers
• Relay drivers
• Lamp drivers
• LED displays and signage
• Line drivers
• Logic buffers

Quality and Support

Texas Instruments is committed to delivering high-quality products and the UN2003A is no exception. Customers can expect reliable performance and durability from this integrated circuit. Additionally, TI provides extensive technical support and documentation, making it easier for engineers to integrate the UN2003A into their designs.

Ordering Information

To order the UN2003A or to obtain more information about pricing and availability, please visit the Texas Instruments website or contact an authorized distributor. Ensure that your application meets the electrical and thermal limits of the device by consulting the detailed datasheet and application notes provided by Texas Instruments.