This discrete MOSFET stepper motor driver enables control of one bipolar stepper motor. It supports a wide 8 V to 50 V operating voltage range and can deliver up to 8 A continuous per phase without a heat sink or forced air flow (11 A max with sufficient additional cooling). The SPI interface allows configuration of the current limiting, step mode (9 step modes from full-step through 1/256-step), decay mode, and stall detection. The driver also provides back-EMF feedback that can be used for more advanced control and stall detection algorithms. Additional features include reverse-voltage, under-voltage, and over-current protection.
Compare all products in Stepper Motor Drivers.
Dimensions
|
Size:
|
1.3″ × 1.2″
|
|
Weight:
|
5.5 g1
|
General specifications
|
Minimum operating voltage:
|
8 V
|
|
Maximum operating voltage:
|
50 V
|
|
Continuous current per phase:
|
8 A2
|
|
Maximum current per phase:
|
11 A3
|
|
Minimum logic voltage:
|
1.5 V
|
|
Maximum logic voltage:
|
5.5 V
|
|
Microstep resolutions:
|
full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256
|
|
Current limit control:
|
SPI-programmable
|
|
Reverse voltage protection?:
|
Y
|
|
Header pins soldered?:
|
N
|
Identifying markings
|
PCB dev codes:
|
md38c
|
|
Other PCB markings:
|
0J15128
|
Notes:
- 1
- Without included optional headers or terminal blocks.
- 2
- Without a heat sink or forced air flow.
- 3
- With sufficient additional cooling. This limitation comes from the 30 mΩ current sense resistors, which are rated for 1 W.
