AA51883 Datasheet, PDF (4/7 Pages) Agamem Microelectronic Inc. – SERVO MOTOR CONTROLLER

AA51883 _{Agamem Microelectronics Inc.}
PRELIMINARY
SERVO MOTOR CONTROLLER
■ APPLICATION CIRCUIT
C9
0.01uF
VIN 8
2
CFP
3
VCC
AA51883
EXP1 ₁
OUT1 ₁₆
Q2
EXP2 ₁₂
OUT2 ₁₃
VS
C8 103pF
Q1
M Ω VR1
5K
Ω^R7
1K
RX 1KΩ
RT
CT
POT CDB CST GND ^VREG 5
9
10
11
7
6 15
Ω ^R1
470K
Ω^R2
18K
C3
0.1uF _C1
0.1uF
C2
0.1uF
C10
0.001uF
Ω R4 150K
C4
0.22uF
C5
4.7uF
Half H-Bridge application using two external PNPs
When the servo is about to reach the target position, the servo maybe overshoot for
speed issue. OUT1 and OUT2 pins are connected to both side of servo, you can try to
reduce the value of R1 to let servo make an instant stop on the target position.
The application circuit is for reference only. The value of resistor and capacitor needs to
be changed and gets the best performance in various servos.
©Copyright Agamem Microelectronics Inc.
4
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.