Agamem Technology Inc.
PRELIMINARY
SERVO MOTOR CONTROLLER
INTRODUCTION
The AA51880 is a BJT integrated circuit for use in servo motor control applications.
The built -in voltage regulato r provides the AA51880 with e xtremely stable output voltage.
AA51880
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
EXP1
Output
Driver
V
IN
Timing control
Voltage
Regulator
OUT1
OUT2
EXP2
V
REG
P
OT
C
L
R
T
C
DB
C
ST
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.
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2003-04-24