Overview
The LB1643 is a forward/reverse motor driver IC. The direction and brake functions are controlled from a single input, and the output voltages can be set by resistors. Further, the output voltage has 3 modes, full, high-level and low-level voltage modes. The output voltage can be controlled from a single input and a microcontroller interface.

Features
• Single-input forward, reverse and brake functions
• Output voltage can be set using resistors
• Single-input full-drive, high-level drive and low-level drive select function
• Microcontroller interface
• Built-in surge-current absorption components
• Built-in reference voltage circuit
• Built-in thermal protection circuit