ROHM BA6950FS Datasheet

Motor driver ICs

Reversible motor driver

BA6950FS

The BA6950FS is a reversible-motor driver suited for brush motors. Two logic inputs allow four output modes: forward,
reverse, stop (standby), and brake. The rotational speed of motor can be set arbitrarily by changing the voltage applied
to the motor with control pins. The IC can also drive a motor at a constant speed by using a built-in current feedback
amplifier.

Applications
VCRs, audio equipment

Features

1) Two logic inputs allow four output modes: forward, re­verse, stop (standby), and brake.

2) Motor speed variable with voltage control signals.

Absolute maximum ratings (Ta = 25C)

3) Built-in current feedback amplifier allows constant
motor speed.

4) Control gain can be set arbitrarily by using external
resistors.

5) Built-in thermal shutdown circuit.

Recommended operating conditions (Ta = 25C)

484

Motor driver ICs BA6950FS

Block diagram

Pin descriptions

485