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Help Center2-phase Stepper Motor Driver, DMD808A
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l Dual H-bridge,Pulse width modulated current control, chopping at 20 KHz
l TTL compatible and optically isolated input
l Max Step/rev. up to 51200
l Input Voltage 24-90 VDC
l Max output driving current 7.7A/phase
l Over current protection
l CE compliant
Parameters |
Min. |
Typical |
Max. |
Unit |
Output Current |
2.8 |
- |
7.7 |
A |
Power Supply |
24 |
68 |
90 |
VDC |
Logical Current |
6 |
10 |
30 |
mA |
Pulse Frequency |
0 |
- |
200 |
KHz |
Pulse Active-low |
5 |
- |
- |
μs |
Isolation Resistance |
500 |
- |
- |
MΩ |
Approx. Net Weight |
- |
0.46 |
- |
Kg |
Micro-step |
Step/rev. (1.8° Motor) |
SW5 |
SW6 |
SW7 |
SW8 |
1 |
200 |
off |
off |
off |
off |
2 |
400 |
on |
on |
on |
on |
4 |
800 |
on |
off |
on |
on |
8 |
1600 |
on |
on |
off |
on |
16 |
3200 |
on |
off |
off |
on |
32 |
6400 |
on |
on |
on |
off |
64 |
12800 |
on |
off |
on |
off |
128 |
25600 |
on |
on |
off |
off |
256 |
51200 |
on |
off |
off |
off |
5 |
1000 |
off |
on |
on |
on |
10 |
2000 |
off |
off |
on |
on |
25 |
5000 |
off |
on |
off |
on |
50 |
10000 |
off |
off |
off |
on |
125 |
25000 |
off |
on |
on |
off |
250 |
50000 |
off |
off |
on |
off |
Pin |
Description |
Pul+ |
One step ahead when the pulse rising edge is active. Step distance is subject to the micro-step. |
Pul- | |
Dir+ |
This Active-high/low signal is used for determining the rotate direction of motor. Please note that rotation direction is also related to the connection of motor wires. |
Dir- | |
Ena+ |
This signal is used for enabling/disabling the driver. Active-high for enabling the driver (optical-isolation is not through), Active-low for disabling the driver (optical-isolation is through). |
Ena- | |
DC- |
Power Ground |
DC+ |
Power Supply, +24~90VDC, including voltage fluctuation and EMF voltage. |
A+ |
Motor Phase A |
A- | |
B+ |
Motor Phase B |
B- |
DHL/TNT/FedEx air express shipping
12-month product warranty
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