Datasheet BA6303F, BA6303, BA6302AF, BA6302A Datasheet (ROHM)

Motor driver ICs

FG system speed servo controller

BA6302A / BA6302AF / BA6303 / BA6303F

The BA6302A/AF and BA6303/F are FG-system servo control ICs suitable for controlling the speed of VCR motors.
They contain a hysteresis FG amplifier section, an S / H system F / V conversion section, an error amplifier section, and
an inverter section.
Motor speed can be set with a high degree of freedom by an external CR. The start-up circuit allows quick and precise
motor starting.
Motor speed can be controlled precisely at different levels by installing an FG program counter between the FG amplifier
output and the F / V conversion input.

Applications
Speed control of various motors including capstan motors, drum head motors, and reel motors

Features

1) S / H system F / V converter allows speed setting
with a stable external CR.

2) High hysteresis FG amplifier with high noise resis­tance.

3) Start-up circuit allows quick and precise motor start­ing.

4) Motor speed can be controlled at different levels by
installing an FG program counter.

5) Low current dissipation. (V

6) Stable operation with either 5, 9, or 12V supply volt­age.

7) Two versatile inverters are built in.

CC=9V, IQ=2.3mA Typ.)

Absolute maximum ratings (Ta = 25C)

750

Motor driver ICs BA6302A / BA6302AF / BA6303 / BA6303F

Block diagram

751

Motor driver ICs BA6302A / BA6302AF / BA6303 / BA6303F

Electrical characteristics (unless otherwise noted, Ta = 25C, VCC=9V)

752

Motor driver ICs BA6302A / BA6302AF / BA6303 / BA6303F

External dimensions (Units: mm)

753