NJM3770AD3 NJR, NJM3770AD3 Datasheet - Page 2

• Manufacturer Part Number: NJM3770AD3
• Description: IC STEPPER MTR DVR BATWING/16DIP
• Manufacturer: NJR
• Type: Stepper Motor Controller/Driverr

Specifications of NJM3770AD3

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 1.5A
• 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: 16-DIP (0.325", 8.25mm), 12 Leads + 2 Fins
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 6 V
• Supply Current: 40 mA
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 2. Pin configurations
EMP
1
2
3
4-7,
14-18
8
9
10
11
12
13
19
20
PIN CONFIGURATIONS
PIN DESCRIPTION
Phase
V MM
GND
GND
GND
GND
V CC
M
T
I 1
B
12,13
3,14
4,5,
DIP
10
11
15
16
10
1
2
3
4
5
6
7
8
9
1
2
6
7
8
9
3770AE2
NJM
13-17,28
1-3,9,
PLCC
12,4
10
11
18
19
20
21
23
24
6
8
15
18
17
16
14
13
12
20
19
11
E
M
GND
I
V MM
GND
GND
V R
Phase
GND
C
Symbol
0
GND
A
V
V
M
M
V
C
T
I
I
E
MM
CC
1
0
R
B
A
Phase
Description
Motor output B, Motor current flows from M
Clock oscillator. Timing pin connect a 56 k resistor and a 820 pF in
parallel between T and Ground.
Motor supply voltage, 10 to 40 V. Pin 3(12) and pin 14(4) should be wired to
gether.
Ground and negative supply. Note these pins are used for heatsinking.
Make sure that all ground pins are soldered onto a suitable large copper
ground plane for efficient heat sinking.
Logic voltage supply normally +5 V.
Logic input. It controls, together with the I0 input, the current level in the output
stage.
The controllable levels are fixed to 100, 60, 20, 0%.
Controls the direction of the motor current of M
Motor current flows from M
Logic input. It controls, together with the I
stage.
The controllable levels are fixed to 100, 60, 20, 0%.
Comparator input. This input senses the instantaneous voltage across the
sensing
Reference voltage. Controls the threshold voltage of the comparator and hence
the output current. Input resistance: typically 6.8 k
Motor output A, Motor current flows from M
Common emitter. Connect the Sense resistor between this pin and ground.
GND
GND
V
V
M
MM
CC
I
T
B
1
1
2
3
4
5
6
7
8
resistor, filtered through a RC Network.
3770AD3
NJM
16
15
14
13
12
11
10
9
A
E
M
GND
GND
V
C
I
V
to M
0
R
MM
A
B
when the phase input is high.
GND
N/C
N/C
M
M
1
E
T
A
B
input, the current level in the output
10
11
A
A
5
6
7
8
9
to M
to M
A
and M
B
B
3770AFM2
when Phase is high.
when Phase is high.
NJM
20%.
B
NJM3770A
outputs.
25
24
23
22
21
20
19
N/C
V
C
N/C
I
Phase
I
1
0
R