Overview

The LB1644 is a dual bidirectional motor driver. Since each channel has a 2-input logic circuit and performs bidirectional driving and braking functions, it is capable of direct driving 2pcs. of motor of various types rated at 6 to 24V. The output voltage can be varied by using external zener diodes.

It is especially suited for dual motor drive (reel motor, loading motor, cassette motor in VCR) and for stepping motor drive.

Features

• With power transistors for motor drive contained, capable of withstanding dash current of 1A max.

• Performs braking function at the motor stop mode.

• Contains elements to absorb motor dash current.

• Input interfaceable to MOS LSI.

• Minimum number of external parts required.

• Wide operating voltage range.

• Contains thermal shutdown protector.