Agamem Microelectronics Inc.

AA51883

PRELIMINARY

SERVO MOTOR CONTROLLER

©Copyright Agamem Microelectronics Inc.

www.agamem.com.tw

2008/4/9

AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER

NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT

ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCTS OR CIRCUIT DESRIBED

HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

2

■ PIN DESCRIPTION

1

2

3

4

5

6

16

15

14

13

12

11

○

TOP VIEW

7

8

10

9

EXP1

CFP

N.C.

OUT1

GND

N.C.

OUT2

EXP2

POT

PIN NO.

PIN NAME

PIN FUNCTION

1

EXP1

Connect to the (Q1) base of the external PNP transistor

2

CFP

Fixed driving pulse setting

3

Power supply pin

5

Constant output voltage of 2.5V (typical). Make connections

from this pin to a potentiometer or pulse stretcher resistor.

6

Connect the capacitor and resistor of the pulse stretcher

section.

7

Dead band setting by connecting a capacitor.

8

Input signal, an adjustable pulse of 20ms cycle and

1.0-2.0ms pulse-width, operate with a positive pulse of peak

value 3V or greater.

9

Timing Resistor, connect a resistor that will determine the

value of the constant current of this pin. A resistor of 18kΩ

will yield a current of 1.0mA.

10

Local pulse setting, connect a capacitor that will generate a

triangular wave by constant current charging.

11

POT

Servo position voltage from the potentiometer connected to

the servo's drive shaft.

12

EXP2

Connect to the (Q2) base of the external PNP transistor

13

OUT2

Output Driver 2 (connect to motor)

15

GND

Ground pin

16

OUT1

Output Driver 1 (connect to motor)