DC MOTOR SPEED CONTROLLER FOR CASSETTE TAPE RECORDER SYSTEM

The KIA6903P is a monolithic IC developed for speed control of general purpose DC motors. This IC consist of a reference voltage generator, current multiplier, comparator and start circuit.
The IC controls the speed of a DC motor by detecting counter electromotive force from the DC motor.

FEATURES
• Wide Range of Working Power Supply Voltage. (VCC=3.5 18V)
• Very Large Starting Torque at the low Voltage.
• Large Allowable Loss due to Effective Utilization of Substrate Radiation.
• Usable for Various DC Motors by Means of Changing Constants of the External Components.