2003-04-24 1
Agamem Technology Inc. AA51880
PRELIMINARY SERVO MOTOR CONTROLLER
INTRODUCTION

The AA51880 is a BJT integrated circuit for use in servo motor control applications.
The built -in voltage regulator provides the AA51880 with extremely stable output voltage.

FEATURES

Built-in voltage regulator.
Larger driving capability.
Small outline package.


APPLICATIONS

Servo motor control.
Radio controlled car, boat, airplane.
IA products (such as air-condition).

BLOCK DIAGRAM













FUNCTION DESCRIPTION

Timing control block detects the motor position and adjust dead band.
Output driver circuit control the servo motor current direction.
The voltage regulator supports the application reference voltage.





Timing control
Output
Driver
Voltage
Regulator
VIN
POT CL RT CDB CST
EXP1
OUT1
OUT2
EXP2



VREG