M51971FP Datasheet - MOTOR SPEED CONTROL

MITSUBISHI M51971L/FP MOTOR SPEED CONTROL DESCRIPTION The M51971 is a semiconductor integrated c...

MITSUBISHI M51971L/FP MOTOR SPEED CONTROL DESCRIPTION The M51971 is a semiconductor integrated circuit designed to control the motor rotating speed. The built-in FG amplifier with high gain enables to use a wide range of rotating speed detector (FG detector). Use of less external parts enables DC motors to be controlled with high precision. PIN CONFIGURATION (TOP VIEW) Non-inverted input Inverted input Amplifier output 1 2 3 4 FEATURES q Wide range of supply voltage 4 – 17.5V q Variation coefficient of supply voltage ±0.005%/V (standard) q Load variation coefficient ±0.01% (standard, full load range) q Temperature coefficient of rotating speed 7ppm/˚C (standard) q Built-in high performance FG amplifier Schmitt input Time constant Stabilized voltage GND Integration capacitance Output M51971L 5 6 7 8 9 APPLICATION Motor rotating speed control in floppy disk driver, player, tape recorder, car stereo, etc. Power supply 10 Outline 10P5 RECOMMENDED OPERATING CONDITIONS Supply voltage range 4 – 17.5V Rated supply voltage 9V Input voltage range at pin 1 -0.4 – Vcc Note 1 Input voltage range at pin 4 -0.4 – Vcc Highest setup...