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PDF NJU7384 Data sheet ( Hoja de datos )
| Número de pieza | NJU7384 | |
| Descripción | Digital Signal Processor | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJU7384 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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NJU7384www.DataSheet4U.com
Pulse Input Bipolar Stepper Motor Driver
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
NJU7384 is a bipolar drive stepping motor driver.
The control method used is a simple pulse train input control
(STEP & DIR) method of programming. Also, low power
consumption was realized as a result of the adoption of a highly
efficient CMOS.
As the control functions, the external input RESET and ENABLE
functions are used, and as the protective function, a thermal
shutdown (TSD) is incorporated.
The package uses the low thermal resistance SSOP32 which
can withstand a high output current.
NJU7384V
s FEATURES
• Operating Voltage
3.0 to 5.5V（Logic : VDD）
4.0 to 8.0V（H bridge : VMM）
• Maximum Output Current
700mA/ch
• Pulse Input (STEP＆DIR) Control
• Half / Full Step Change Function
• Thermal Shutdown Circuit
• Thermal Shutdown Alarm Output
• RESET Function
• ENABLE Function
• CMOS Technology
• Package Outline
SSOP32
s BLOCK DIAGLAM
VDD
VMM1
STEP
DIR
HSM
RESET
OUTA1
OUTA2
PGNG1
VMM2
OUTB1
OUTB2
ENABLE
GND
TSD
PGND2
TSD
ALARM
Ver.2007-08-20
-1-
1 page  
s TIMING CONDITION
STEP
DIR,HSM,
RESET,
ENABLE
t ONMIN
t DS tDH
NJU7384www.DataSheet4U.com
tOFFMIN
50%
s TRUTH TABLE
LOGIC IN
VDD
H
L
DIR
H
L
HSM
H
L
RESET
H
L
ENABLE
H
L
*VMM : Motor voltage supply
*OPERATE : Follow the input logic
*Hi Z : Output all off (A1, A2, B1,B2)
MODE
OPERATE
Hi Z
CW
CCW
FULL STEP
HALF STEP
OPERATE
RESET
OPERATE
Hi Z
s EXCITATION SEQUENCE
Condition: FULL STEP, HSM=ENABLE=RESET
Pulse
0 123
OUTA1
L HHL
OUTA2
H LLH
OUTB1
L LHH
OUTB2
H HLL
IA - + + -
IB - - + +
DIR=HIGH CW
DIR=LOW CCW
Condition: HALF STEP, HSM=LOW, ENABLE=RESET=HIGH
Pulse
0 1234567
OUTA1
L Hi Z H H H Hi Z L L
OUTA2
H Hi Z L L L Hi Z H H
OUTB1
L L L Hi Z H H H Hi Z
OUTB2
H H H Hi Z L L L Hi Z
IA - 0 + + + 0 - -
IB - - - 0 + + + 0
DIR=HIGH CW
DIR=LOW CCW
* Regarding the current flow direction, the direction A1→A2 and B1→B2 is indicated as +, and the direction A2→A1 and
B2→B1 is indicated as –.
Ver.2007-08-20
-5-
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NJU7384.PDF ] | |
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