This is a specific integrated circuit (IC) model manufactured by Sanyo (now part of ON Semiconductor). It is a motor driver IC designed for controlling DC motors.
Part Number: LB1639
Function: Motor Driver
Package: DIP 8 Pin Type
This is 8 Pin Type, Motor Driver. The LB1639 is low-saturation bidirectional motor driver ICs for use in low-voltage applications.
1. This is capable of driving and controlling DC motors, typically in applications such as robotics, consumer electronics, and automotive systems.
2. The IC features a dual H-bridge configuration, allowing it to control the direction and speed of two DC motors independently. Each H-bridge consists of four power MOSFETs that can drive the motor in forward, reverse, or brake modes.
3. The LB1639 incorporates various protection functions to enhance the reliability and safety of the motor and the IC itself. These protection features include overcurrent protection, thermal shutdown, and undervoltage lockout.
4. The IC supports Pulse Width Modulation (PWM) speed control, enabling precise speed regulation of the DC motors. By adjusting the duty cycle of the PWM signal, the motor speed can be varied.
1. Low voltage operation
2. Low saturation voltage (upper transistor + lower transistor residual voltage
3. Low current drain at standby mode
4. Separate logic power supply and motor power supply
5. Brake function
6. Built-in spark killer diodes