The UDN2961B is a full-bridge PWM motor driver designed and manufactured by Allegro MicroSystems, LLC. This IC is designed to drive inductive loads such as DC motors, stepper motors, and solenoids. It is capable of providing bidirectional control and includes integrated protection features.

Applications

• DC Motor Control
• Stepper Motor Control
• Solenoid Drivers
• Robotics
• Automotive Actuators

Features

• Full-Bridge PWM Motor Driver
• Bidirectional Control
• Overcurrent Protection
• Thermal Shutdown
• Shoot-Through Protection

Benefits

• Simplified motor control circuit design.
• Provides efficient PWM control for precise motor speed and torque.
• Protects the driver and motor from damage due to overcurrent conditions.
• Enhances system reliability with thermal shutdown protection.
• Prevents simultaneous conduction of high-side and low-side drivers with shoot-through protection.

Technical Specifications

The UDN2961B operates from a single supply voltage, typically in the range of 8V to 35V. It is capable of delivering up to 2A of continuous output current. The device incorporates internal overcurrent protection circuitry that limits the output current in the event of a short circuit. The thermal shutdown feature disables the output drivers when the junction temperature exceeds a safe level. The UDN2961B is available in a DIP or SOIC package. It uses PWM (Pulse Width Modulation) to control the speed and direction of the motor. The operating temperature range is typically -20°C to +85°C. It requires external flyback diodes for inductive load driving.