AA51883 Datasheet, PDF (2/7 Pages) Agamem Microelectronic Inc. – SERVO MOTOR CONTROLLER

AA51883 _{Agamem Microelectronics Inc.}
PRELIMINARY
SERVO MOTOR CONTROLLER
■ PIN DESCRIPTION
EXP1 1 ^○
CFP 2
VCC
3
N.C. 4
VREG 5
CST
6
CDB
7
VIN
8
16 _OUT1
15 GND
14 N.C.
13 OUT2
12 EXP2
11 POT
10 CT
9 _RT
TOP VIEW
PIN NO.
1
2
3
5
6
7
8
9
10
11
12
13
15
16
PIN NAME
EXP1
CFP
VCC
VREG
CST
CDB
VIN
RT
CT
POT
EXP2
OUT2
GND
OUT1
PIN FUNCTION
Connect to the (Q1) base of the external PNP transistor
Fixed driving pulse setting
Power supply pin
Constant output voltage of 2.5V (typical). Make connections
from this pin to a potentiometer or pulse stretcher resistor.
Connect the capacitor and resistor of the pulse stretcher
section.
Dead band setting by connecting a capacitor.
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.
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.
Local pulse setting, connect a capacitor that will generate a
triangular wave by constant current charging.
Servo position voltage from the potentiometer connected to
the servo's drive shaft.
Connect to the (Q2) base of the external PNP transistor
Output Driver 2 (connect to motor)
Ground pin
Output Driver 1 (connect to motor)
©Copyright Agamem Microelectronics Inc.
2
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.