NJM3771 データシートの表示（PDF） - Japan Radio Corporation
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NJM3771 Datasheet PDF : 9 Pages
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NJM3771
s ABSOLUTE MAXIMUM RATINGS
Parameter
Pin no. (DIP)
Voltage
Logic supply
Motor supply
Logic inputs
Comparator inputs
Reference inputs
11
3, 20
7, 8, 15, 16
10, 13
9, 14
Current
Motor output current
Logic inputs
Analog inputs
Oscillator charging current
1, 4, 19, 22
7, 8, 15, 16
10, 13
12
Temperature
Operating junction temperature
Storage temperature**
** Circuit only. The packaging can handle max 60°C
Symbol
Min
Max
Unit
VCC
0
7
V
VMM
0
45
V
VI
-0.3
6
V
VC
-0.3
VCC
V
VR
-0.3
7.5
V
IM
-700
+700
mA
II
-10
-
mA
IA
-10
-
mA
IRC
-
5
mA
T
J
-40
+150
°C
TS
-55
+150
°C
s RECOMMENDED OPERATING CONDITIONS
Parameter
Logic supply voltage
Motor supply voltage
Motor output current ***
Junction temperature ****
Rise time logic inputs
Fall time logic inputs
Oscillator timing resistor
Symbol
V
CC
VMM
IM
TJ
tr
tf
R
T
Min
Typ
4.75
5
10
-
-650
-
-20
-
-
-
-
-
2
15
Max
5.25
40
650
+125
2
2
20
Unit
V
V
mA
°C
µs
µs
kohm
*** In microstepping mode, “sine/cosine” drive where I1 = 650 • cos(q) and I2 = 650 • sin(q) mA, otherwise 500 mA/channel both
channels fully on.
****See operating temperature chapter.
Phase 1
CD1 VR1
C1
NJM 3771
789
10
I CC
VCC 11
V
CC
–
+
+
–
RQ
S
Logic
15 kΩ
RT
I RC RC 12
VCC
3 300 pF
CT
VI
VIH
VIL
VA
VR
I I I IH I IL
IA
+
–
–
+
Logic
+
SQ
R
–
16 15 14
Phase 2
CD2 VR2
VCH
VC
13
5, 6, 17, 18
C2
GND
IC
IA
1 kΩ
RC
820 pF
CC
E1
2
4
M A1
1
M B1
3
VMM1
20 VMM2
22
M B2
19
M A2
21
E2
VE
RS
I MM
I M I OL
VM
VMA
VMM
| V MA – VMB |
50 %
t on
t off
t
VE
td
V
CH
fs=
1
ton + toff
t
D=
ton
ton + toff
Figure 4. Definitions of symbols
Figure 5. Definition of terms
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