NJM3773D2 NJR, NJM3773D2 Datasheet - Page 2

• Manufacturer Part Number: NJM3773D2
• Description: IC STEPPER MOTOR DVR DUAL 22-DIP
• Manufacturer: NJR
• Type: Stepper Motor Controller/Driverr

Specifications of NJM3773D2

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: 750mA
• Voltage - Load: 10 V ~ 40 V
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -20°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 22-DIP (0.400", 10.16mm)
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 7 V
• Supply Current: 70 mA
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 2. Pin configurations
EMP
2
3
4
5
6,7
18,19
8
9
10
11
12
13
14
15
16
17
20
21
22
23
PIN CONFIGURATIONS
PIN DESCRIPTION
Phase
VMM
GND
GND
MB
MA
Dis
VR
RC
DIP
1
2
3
4
5, 6,
17, 18 13-17,
7
8
9
10
11
12
13
14
15
16
19
20
21
22
NC
C
E
1
1
1
1
1
1
1
1
10
11
12
1
2
3
4
5
6
7
8
9
3773E3
PLCC
8
10
11
12
1-3, 9, GND
28
18
19
20
21
22
23
24
25
26
27
4
5
6
7
NJM
Symbol
M
E
M
V
V
C
Phase
Dis
RC
V
Dis
Phase
C
V
V
M
E
M
19
18
15
13
24
23
22
21
20
17
16
14
1
MM1
R1
CC
R2
MM2
2
1
2
B1
A1
A2
B2
NC
MB
E
VMM
MA
GND
GND
VR
C
Phase
Dis
V
1
2
2
cc
2
2
2
2
2
2
1
2
2
Description
Motor output B, channel 1. Motor current flows from M
Common emitter, channel 1. This pin connects to a sensing resistor R
Motor output A, channel 1. Motor current flows from M
Motor supply voltage, channel 1, +10 to +40 V. V
Ground and negative supply. Note: these pins are used thermally for heat-sinking.
Make sure that all ground pins are soldered onto a suitably large copper ground plane
for efficient heat sinking.
Reference voltage, channel 1. Controls the comparator threshold voltage and hence the
output current.
Comparator input channel 1. This input senses the instantaneous voltage across the
sensing resistor, filtered by the internal digital filter or an optional external RC network.
Controls the direction of motor current at outputs M
to M
Disable input for channel 1. When HIGH, all four output transistors are turned off, which
results in a rapidly decreasing output current to zero.
Clock oscillator RC pin. Connect a 12 kohm resistor to V
to obtain the nominal switching frequency of 23.0 kHz and a digital filter blanking time of 1.0 s.
Logic supply voltage, nominally +5 V.
Disable input for channel 2. When HIGH, all four output transistors are turned off, which
results in a rapidly decreasing output current to zero.
Controls the direction of motor current at outputs M
to M
Comparator input channel 2. This input senses the instantaneous voltage across the
sensing resistor, filtered by the internal digital filter or an optional external RC network.
Reference voltage, channel 2. Controls the comparator threshold voltage and hence the
output current.
Motor supply voltage, channel 2, +10 to +40 V.V
Motor output A, channel 2. Motor current flows from M
Common emitter, channel 2. This pin connects to a sensing resistor R
Motor output B, channel 2. Motor current flows from M
B1
B2
when Phase
when Phase
Phase
V
GND
GND
Dis
M
M
MM1
V
RC
E
C
R1
B1
A1
1
1
1
1
10
11
1
2
1
2
3
4
5
6
7
8
9
is HIGH.
is HIGH.
3773D2
NJM
22
21
20
19
18
17
16
15
14
13
12
M
E
M
Phase
V
GND
GND
V
Dis
V
C
CC
2
MM2
A2
B2
R2
2
2
2
MM1
MM1
A1
A2
and V
and V
and M
and M
GND
M
M
M
M
A1
A1
A2
A2
E
E
A2
B2
B1
A1
2
1
to M
to M
to M
to M
CC
10
11
5
6
7
8
9
MM2
MM2
B1
and a 4 700 pF capacitor to ground
B2
NJM3773FM2
B1
B1
B2
B2
. Motor current flows from M
. Motor current flows from M
should be connected together.
should be connected together.
when Phase
when Phase
when Phase
when Phase
S
S
to ground.
to ground.
NJM3773
1
1
2
2
is HIGH.
is HIGH.
is HIGH.
is HIGH.
25
24
23
22
21
20
19
C
Phase
Dis
V
RC
Dis
Phase
CC
1
1
2
A1
A2
2
1