The UDN2936W-120 is a quad high-current solenoid driver manufactured by Allegro MicroSystems, LLC. This device is designed to drive inductive loads such as solenoids, relays, and stepper motors. It integrates four independent driver channels, each capable of delivering substantial current, and includes built-in protection features to enhance reliability. The UDN2936W-120 is commonly used in applications requiring precise and controlled actuation of multiple inductive loads.

Applications:

• Solenoid Drivers: Controlling solenoids in industrial valves, vending machines, and automotive applications.
• Relay Drivers: Activating and deactivating relays in industrial control systems and automation equipment.
• Stepper Motor Control: Driving stepper motors in robotics, printers, and other positioning systems.
• Automotive Applications: Controlling various actuators in automotive systems, such as fuel injectors and transmission solenoids.
• Industrial Automation: Driving inductive loads in automated machinery and process control equipment.

Features:

• Quad Driver: Integrates four independent driver channels in a single package.
• High Output Current: Each channel can deliver up to 1.5 A continuous current (consult datasheet for specific values).
• High Voltage Outputs: Capable of driving loads up to 50 V (consult datasheet for specific values).
• Internal Clamp Diodes: Provide protection against inductive kickback voltage.
• Thermal Shutdown Protection: Protects the device from overheating.
• Overcurrent Protection: Limits the output current to prevent damage.
• Logic Compatibility: Compatible with standard TTL and CMOS logic levels.

Benefits:

• Simplified System Design: Reduces component count and simplifies circuit layout.
• Improved Reliability: Built-in protection features ensure reliable operation in harsh environments.
• Enhanced Performance: High output current and voltage capabilities enable precise control of inductive loads.
• Cost-Effective Solution: Integrates multiple driver channels into a single chip, lowering overall system cost.
• Easy Integration: Logic compatibility simplifies interfacing with existing systems.

Additional Details:

The UDN2936W-120 is typically supplied with a supply voltage range of 4.5V to 5.5V for the logic section and a separate supply voltage for the output drivers, typically up to 50V (consult datasheet). The device incorporates a thermal shutdown circuit that activates at approximately 150°C. The input logic thresholds are compatible with standard TTL and CMOS logic levels. The output clamp diodes are rated to handle the inductive kickback voltage generated when switching inductive loads. The UDN2936W-120 is available in a wide variety of packages. The "-120" suffix likely refers to a specific voltage or current rating, but the specific meaning should be confirmed in the datasheet.

The UDN2936W-120 is a versatile and reliable quad high-current solenoid driver suitable for a wide range of applications requiring precise control of inductive loads. Its high output current, built-in protection features, and logic compatibility make it a preferred choice for many industrial and automotive applications.