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PDF AN1607 Data sheet ( Hoja de datos )
| Número de pieza | AN1607 | |
| Descripción | ITC122 low voltage micro to motor interface | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AN1607 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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MOTOROLA
SEMICONDUCTOR APPLICATION NOTE
ITC122 Low Voltage Micro to Motor Interface
By Bill Lucas and Warren Schultz
Order this document
by AN1607/D
AN1607
A MOSFET power stage that is designed to run Brush or
Brushless DC motors with input signals from an ASB124
Motion Control Development Board is presented here. It will
supply up to 4 amps continuous current from DC bus voltages
up to 48 volts.
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Figure 1. ITC122 — Low Voltage Micro to Motor Interface
EVALUATION BOARD DESCRIPTION
A summary of the information required to use ITC122 Low
Voltage Micro to Motor Interface boards is presented as
follows. A discussion of the design appears under the heading
Design Considerations.
Function
The evaluation board shown in Figure 1 is designed to
provide a direct interface between microcomputers and
fractional horsepower motors. It accepts 6 logic inputs which
control 3 complementary Half–Bridge outputs, and is
arranged such that a logic ZERO at the input turns on the
corresponding power transistor. This type of configuration is
applicable to pulse width modulated (PWM) systems where
the PWM signal is generated in a microcomputer, digital signal
processor, or other digital system. It is suitable for driving
fractional horsepower Brush and Brushless DC motors. In
addition to controlling the motor, current sense, temperature
sense, and bus voltage feedback are provided. This board is
designed to interface directly with Motorola ASB124 motor
control development boards.
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©MMOotoTrOolaR, IOncL. A1998
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B+
AN1607
R15 R16 Q1
Q2
4.7 K
4.7 K
BCP56T1
BCP56T1
U1
VCC MC78L05ACD
81
IN OUT
+5.0 V
+
R43
37.4 K
1%
R44
1.96 K
B+
T2
Vbus
J2–13
Z7
15 V + C3
+
1.0 m F
C2
1.0 m F
R17 GROUND
1.8 K
+
GND
C6 C7
220 m F 0.1 m F
D1 6, 7 C4 C5 C11
1.0 m F 0.1 m F 1.0 m F
1%
AGND
GND
T1
GND
T2
J1–5, 7, 9, 11, 13, 14
J2–1, 3, 5, 7, 8, 9, 10, 11
et4U.com
J2–14, 16
Vtemp
AGND
J2–12
D11
AGND DataSheet4U.com
AGND
Figure 3. Schematic
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NOTES
AN1607
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AN1607.PDF ] | |
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