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Número de pieza | NJM37770 | |
Descripción | Stepper Motor / DIP16-D3 / EMP20-E2 | |
Fabricantes | JRC | |
Logotipo | ||
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STEPPER MOTOR DRIVER
■ GENERAL DESCRIPTION
NJM37770 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 NJM37770 is a high power version and
pincompatible with the NJM37717 and also NJM37770 is
a high voltage version with NJM3770A. Two NJM37770
and a small number of external components form a
complete control and drive unit stepper motor systems.
■ PACKAGE OUTLINE
NJM37770D3
■ FEATURES
● Half-step and full-step operation
● Switched mode bipolar constant current drive
● Wide range of current control
● Wide voltage range
● Thermal overload protection
● Packages
5 to 1500mA
10 to 60 V
DIP16 (Batwing) / EMP20
NJM37770
NJM37770E2
■ BLOCK DIAGRAM
Ver.2006-04-11
Figure 1. Block diagram
-1-
1 page www.DataSheet4U.com
■ 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
■ RECOMMENDED OPERATING CONDITIONS (Ta=25°C)
Parameter
Symbol
Logic supply voltage
Motor supply voltage
Motor output current
Junction temperature
Rise time logic inputs
Fall time logic inputs
VCC
VMM
IM
Tj
tr
tf
NJM37770
Symbol
VCC
VMM
VI
VC
VR
IM
II
IA
Tj
Ts
Min
0
0
-0.3
-0.3
-0.3
-1500
-10
-10
-40
-55
Max
7
60
6
VCC
15
+1500
-
-
+150
+150
Unit
V
V
V
V
V
mA
mA
mA
°C
°C
Min Typ Max Unit
4.75 5 5.25 V
10 - 55 V
-1300
-
+1300
mA
-20
-
+125
°C
- - 2 µs
- - 2 µs
Figure 5. Definition of symbols
Ver.2006-04-11
Figure 6. Definition of terms
-5-
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet NJM37770.PDF ] |
Número de pieza | Descripción | Fabricantes |
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