|
|
PDF NJM3770A Data sheet ( Hoja de datos )
| Número de pieza | NJM3770A | |
| Descripción | STEPPER MOTOR DRIVER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de NJM3770A (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
NJM3770A
STEPPER MOTOR DRIVER
s GENERAL DESCRIPTION
NJM3770A is a stepper motor driver, which consists of a
LS-TTL compatible logic input stage, a current sensor, a
monostable multivibrator and a high power H-bridge output
stage. The NJM3770A is a high power version and pin-
compatible with the NJM3717.Two NJM3770A and a small
number of external components form a complete control
and drive unit stepper motor systems.
s EATURES
• Half-step and full-step operation
• Switched mode bipolar constant current drive
• Wide range of current control 5 -1800 mA
• Wide voltage range 10 - 45 V
• Thermal overload protection
• Packages DIP16 (Batwing) / PLCC28 / EMP20
s PACKAGE OUTLINE
NJM3770AD3
NJM3770AE2
NJM3770AFM2
s BLOCK DIAGRAM
Phase
I
1
I0
VR
GND
VCC
Schmitt
Trigger
Time
Delay
1
≥1
VMM
VMM
≥1
&&&&
≥1
≥1
MA
MB
+
–
+
–
+
–
Current Sensor
C
Output Stage
Monostable
toff = 0.69 • RT • CT
TE
NJM3770A
Figure 1. Block diagram
1 page  
s ABSOLUTE MAXIMUM RATINGS
Parameter
Voltage
Logic supply
Motor supply
Logic inputs
Comparator input
Reference input
Current
Motor output current
Logic inputs
Analog inputs
Temperature
Operating junction temperature
Storage temperature
Pin no. [DIP package]
6
3, 14
7,8,9
10
11
1, 15
7,8,9
10,11
s RECOMMENDED OPERATING CONDITIONS
Parameter
Logic supply voltage
Motor supply voltage
Motor output current
Junction temperature
Rise time logic inputs
Fall time logic inputs
Symbol
VCC
VMM
IM
TJ
tr
tf
NJM3770A
Symbol
V
CC
V
MM
V
I
VC
VR
I
M
II
IA
T
j
Ts
Min Max
07
0 45
-0.3 6
-0.3 VCC
-0.3 15
-1800
-10
-10
+1800
-
-
-40 +150
-55 +150
Unit
V
V
V
V
mA
mA
mA
°C
°C
Min
4.75
10
-1500
-20
-
-
Typ Max
5 5.25
- 40
- +1500
- +125
-2
-2
Unit
V
V
mA
°C
µs
µs
ICC
I I IIH IIL
IA
Phase 8
I7
1
I0 9
VR 11
VCC
6 [18]
Schmitt
Trigger
Time
Delay
1
≥1
&&&&
≥1
VMM
3
VMM
14
≥1
≥1
I MM
15 MA
IM IOL
1 MB
VCC VI
V IH
V IL
VA
V
R
+
–
+
–
GND
4, 5,
12, 13
+
–
Current Sensor
10
IC C
IA
VC
820 pF
1k
RC
CC
Output Stage
Monostable
t off = 0.69 • RT• CT
2 16
TE
NJM3770A
56 k 820 pF 0.5
VE
RT CT
RS
Pin no. refers
to DIP-package
VM
V
MA
VMM
Figure 5. Definition of symbols
| V MA – VMB |
Normalized
1
t on
1/2
t off
VE
V
CH
V
CM
V
CL
td
1
f=
s
ton + toff
D=
ton
ton + t off
Figure 6. Definition of terms
t
t
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NJM3770A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NJM3770A | 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 |