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PDF AA51880 Data sheet ( Hoja de datos )
| Número de pieza | AA51880 | |
| Descripción | SERVO MOTOR CONTROLLER | |
| Fabricantes | Agamem Microelectronic | |
| Logotipo |  |
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PRELIMINARY
AA51880Agamem Microelectronics Inc.
SERVO MOTOR CONTROLLER
■ DESCRIPTION
The AA51880 is a BJT integrated circuit using in servo motor control applications. The built-in
voltage regulator provides the AA51880 with extremely stable output voltage. It also
incorporates a linear one-shot and pulse-width demodulator for improved positional accuracy.
■ FEATURES
• Built-in voltage regulator.
• Larger driving capability.
• Internal output NPN power transistor.
• Adjustable dead band range control.
• Incorporates a protection circuit for "H-Bridge" driving configuration.
• Small outline package.
■ APPLICATIONS
• Servo motor control.
• Radio controlled car, boat, and airplane.
• IA products (such as air-condition).
• Remote positioning.
■ BLOCK DIAGRAM
Note: Pin no. is for AA51880C/AA51880F; please refer to “PIN DESCRIPTION” for other package type.
©Copyright Agamem Microelectronics Inc.
1
www.agamem.com.tw 2008/4/22
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.
1 page  
www.DataSheet4U.com
PRELIMINARY
AA51880Agamem Microelectronics Inc.
SERVO MOTOR CONTROLLER
PWM drive techniques provide the benefits of reduced power dissipation, improved servo
motor performance and positively affect system efficiency.
(7) Output driver
The output driver controls the servo current direction. For light load application, the servo can
be connected with OUT1 and OUT2 pin only. For heavy load application, the EXP1 and EXP2
pin will be connected to the base of the external PNP transistor. It drives in an H-bridge
configuration (The sink NPN drivers are built inside the chip).
■ TYPICAL APPLICATION EXAMPLE
A. Mini-Servo Application (No external drivers needed)
VCC
10
EXP1 2
VIN 14
OUT1 3
OUT2 5
EXP2 6
VREG 9
RT
CT
POT
RDB CST GND GND GND
1 16 15 11 7 4 12 13
R2
20KΩ
C3
0.1uF
C1
0.1uF
C2
0.1uF
R3
1KΩ
R4 150KΩ
C4
0.22uF
C5
4.7uF
C8 103pF
VR1
5KΩ
R1
470KΩ
R7
1KΩ
©Copyright Agamem Microelectronics Inc.
5
www.agamem.com.tw 2008/4/22
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.
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AA51880.PDF ] | |
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