NJM37717 New Japan Radio Co., Ltd., NJM37717 Datasheet - Page 2

• Manufacturer Part Number: NJM37717
• Description: STEPPER MOTOR DRIVER
• Manufacturer: New Japan Radio Co., Ltd.

PIN CONFIGURATIONS
PIN DESCRIPTION
12,13
3,14
4,5
10
11
15
16
DIP
1
2
6
7
8
9
Symbol
Phase
GND
V
V
M
M
V
C
T
I
I
E
MM
CC
1
0
R
B
A
Figure 2. Pin configurations
Description
Motor output B, Motor current flows from M
Clock oscillator. Timing pin connect a 56 k
parallel between T and Ground.
Motor supply voltage, 10 to 56 V. V
PCB.
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 I
output stage. The controllable levels are fixed to 100, 60, 20, 0%.
Controls the direction of the motor current of M
current flows from M
Logic input, it controls, together with the I
output
Comparator input. This input senses the instantaneous voltage across the
sensing resistor, filtered through a RC Network.
Reference voltage. Controls the threshold voltage of the comparator and
hence the output current. Input resistance: typically 6.8k
Motor output A, Motor current flows from M
Common emitter. Connect the sense resistor between this pin and ground.
stage. The controlable levels are fixed to 100, 60, 20, 0%.
A
to M
B
when the phase input is high.
MM
pins should be wired together on
0
1
input, the current level in the
input, the current level in the
A
A
to M
to M
resistor and a 820 pF in
A
and M
B
B
when Phase is high.
when Phase is high.
NJM37717
B
outputs. Motor
20%.