BA6303 View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

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BA6303

FG system speed servo controller

ROHM Semiconductor 

Motor driver ICs

FG system speed servo controller

BA6302A / BA6302AF / BA6303 / BA6303F

The BA6302A /A F 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.

FApplications

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

FFeatures

1) S / H system F / V converter allows speed setting

with a stable external CR.

2) High hysteresis FG amplifier with high noise resis-

tance.

3) Start-up circuit allows quick and precise motor start-

ing.

4) Motor speed can be controlled at different levels by

installing an FG program counter.

5) Low current dissipation. (VCC=9V, IQ=2.3mA Typ.)

6) Stable operation with either 5, 9, or 12V supply volt-

age.

7) Two versatile inverters are built in.

FAbsolute maximum ratings (Ta = 25_C)

750

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