|
|
Número de pieza | NJM3717 | |
Descripción | STEPPER MOTOR DRIVER | |
Fabricantes | New Japan Radio | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de NJM3717 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! NJM3717
STEPPER MOTOR DRIVER
s GENERAL DESCRIPTION
NJM3717 is a stepper motor diver, which consists of a LS-TTL
compatible logic input stage, a current sensor, a monostable
multivibrator and a high power H-bridge output stage with built-in
protection diodes.
The output current is up to 1200mA. Two NJM3717 and a small
number of external components form a complete control and drive
unit for stepper motor systems.
s PACKAGE OUTLINE
NJM3717D2
NJM3717E2
s FEATURES
• Half-step and full-step modes
• Switched mode bipolar constant current drive
• Wide range of current control 5 - 1200 mA
• Wide voltage range 10 - 50 V
• Thermal overload protection
• Packages DIP16 / PLCC28 / EMP20
s BLOCK DIAGRAM
NJM3717FM2
Phase
I1
I0
VR
GND
VCC
Schmitt
Trigger
Time
Delay
1
1
VMM
VMM
1
&&&&
+
–
+
–
+
–
Current Sensor
≥1 ≥1
Output Stage
Monostable
toff
= 0.69 • R • C
TT
TE
NJM3717
MA
MB
Figure 1. Block diagram
1 page 200 mA/div
1 ms/div
21
NJM3717
0
100µs/div
Figure 4. Motor current (I ),
M
Vertical : 200 mA/div, Horizontal: 1
ms/div, expanded part 100 µs/div
3
Motor Current
RS
12
3
Fast Current Decay
Slow Current Decay
Time
Figure 5. Output stage with current
paths for fast and slow current decay
Phase shift here
gives fast
current decay
I 0A
I 1A
Ph A
Ph B
I 0B
I 1B
I MA
100%
60%
–20%
–60%
–100%
I MB
100%
60%
20%
–60%
–100%
Full step position
Half step position
Stand by mode
at 20 %
Half step mode at 100 %
Phase shift here
gives slow
current decay
Figure 6. Principal operating sequence
Full step mode at 60 %
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet NJM3717.PDF ] |
Número de pieza | Descripción | Fabricantes |
NJM3717 | STEPPER MOTOR DRIVER | New Japan Radio |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |