TDA7272A

HIGH PERFORMANCE MOTOR SPEED REGULATOR

TACHIMETRIC SPEED REGULATION WITH

NO NEED FOR AN EXTERNAL SPEED PICK-

UP

V/I SUPPLEMENTARY PREREGULATION

DIGITAL CONTROL OF DIRECTION AND

MOTOR STOP

SEPARATE SPEED ADJUSTMENT

5.5V TO 18V OPERATING SUPPLY VOLT-

AGE

1A PEAK OUTPUT CURRENT

OUTPUT CLAMP DIODES INCLUDED

SHORT CIRCUIT CURRENT PROTECTION

THERMAL SHUT DOWN WITH HYSTERESIS

DUMP PROTECTION (40V)

ESD PROTECTION

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 sta-

bility and fast settling behaviour.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

June 1992

BLOCK DIAGRAM

Powerdip(16+2+2)

ORDERING NUMBER: TDA7272A

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