DESCRIPTION

TDA7272A are high performance motor speed controller for small power DC motors as used in cassette players.

Using the motor as a digital tachogenerator itself the performance of true tacho controlled systems is reached.

A dual loop control circuit provides long term stability and fast settling behaviour.

■ TACHIMETRIC SPEED REGULATION WITH NO NEED FOR AN EXTERNAL SPEED PICKUP

■ V/I SUPPLEMENTARY PREREGULATION

■ DIGITAL CONTROL OF DIRECTION AND MOTOR STOP

■ SEPARATE SPEED ADJUSTMENT

■ 5.5V TO 18V OPERATING SUPPLY VOLTAGE

■ 1A PEAK OUTPUT CURRENT

■ OUTPUT CLAMP DIODES INCLUDED

■ SHORT CIRCUIT CURRENT PROTECTION

■ THERMAL SHUT DOWN WITH HYSTERESIS

■ DUMP PROTECTION (40V)

■ ESD PROTECTION