DESCRIPTION

The M51970L is a semiconductor integrated circuit designed to control the motor rotating speed. Connection of the rotating speed detector (F-G detector) to the input keeps the motor rotating speed constant with high precision.

Connection of an appropriate power transistor to the output controls a wide range of DC motors.

FEATURES

●Wide range of supply voltage•••••••••••••2.5–18V(-20–+75˚C)

●Variation coefficient of supply voltage• • • • • • • • • • • ±0.1 standard (4 – 15V)

●Load variation coefficient ••••••••••••••••••••••••••±0.1standard

●Temperature coefficient of rotating speed• • • • • • • • • • • • • • ±10 ppm/˚C (standard) (-20 – +75˚C)

●The built-in over-shoot prevention circuit keeps the over-shoot low.

●DC drive system with minimum RFI

APPLICATION

Motor rotating control in the player, tape recorder, etc.