The LB1667M is a low-saturation, forward/reverse direction control motor driver IC manufactured by SANYO Semiconductor (now ON Semiconductor). It is designed for use in applications that require precise control of small DC motors, such as in automotive accessories, camera lens drives, and other consumer electronic devices. This IC provides efficient and reliable motor control with built-in protection features.

Applications

• Automotive Mirror Control: Used to adjust the position of side mirrors in vehicles.
• Automotive Door Locks: Employed in central locking systems for cars.
• Camera Lens Drives: Integrated into autofocus and zoom mechanisms for cameras.
• Toy Motors: Used to control the movement of motors in various toys.
• Small Actuators: Employed in applications requiring precise linear or rotary motion.

Features

• Low Saturation Voltage: Minimizes power dissipation and improves efficiency.
• Forward/Reverse Direction Control: Allows for bidirectional motor operation.
• Built-in Brake Function: Enables quick motor stopping.
• Overcurrent Protection (OCP): Protects the driver from excessive current.
• Thermal Shutdown (TSD): Protects the driver from overheating.

Benefits

• Improved Efficiency: Low saturation voltage reduces power loss, leading to longer battery life.
• Precise Motor Control: Enables accurate positioning and speed control of DC motors.
• Enhanced System Reliability: Built-in protection features prevent damage from overcurrent and overheating.
• Simplified Circuit Design: Integrated functions reduce the number of external components required.
• Compact Solution: Small package size allows for integration into space-constrained applications.

Additional Details

The LB1667M typically operates from a 2.5V to 9V supply voltage and is available in an 8-pin MFP package. Key specifications include an output current of up to 600mA and a typical saturation voltage of 0.3V. It is crucial to consult the datasheet for specific operating conditions, external component selection, and application guidelines to ensure proper and safe operation. The device is commonly used in applications where efficient and reliable motor control is required.