594

Motor driver ICs

2-phase motor driver for VCR cylinder

motors

BA6970FS

The BA6970FS is a direct-drive motor driver suitable for 2-phase, full-wave linear motors. The IC consists of a Hall ampli-

fier control circuit, driver circuits, FG / PG signal amplifiers, and hysteresis amplifiers.

FApplications

VCR cylinder motors

FFeatures

1) Linear drive system provides low switching noise.

2) Output current can be controlled by either current or

voltage input.

3) Two amplifiers and two hysteresis amplifiers.

4) Constant supply voltage pin for hall devices.

5) High ratio of output current and control current.

(4000 typically)

6) Available in a compact surface-mount package.

FBlock diagram