LV8729 V1.0
Product Introduction¶
LV8729 driver module with 128 subdivisions is a good choice for Nema stepper motor whose current is less than 1.5A, which makes motor steady, quiet and precise.
Features¶
Specifications¶
| Model | LV8729 |
|---|---|
| Dimensions | 1.5mm * 2.0mm (Same with the A4988 and DRV8825) |
| Maximum Drive Current | 1.5A (Default 0.8A) |
| Operating Voltage | 6V-36V, the proposed voltage is 12V |
| Support Subdivisions | 1, ½, ¼, ⅛, 1/16, 1/32, 1/64, 1/128 |
| Product Process | four layer PCB board |
Pin Functions¶
Interface Resources¶
Wiring Diagram¶
Motor Current Setting¶
Current limits can be adjusted by measuring the VREF and the adjustable resistance (pls check wiring diagram). Connect the voltmeter + to VREF, [-] to the GND and read the value. LV8729 uses 0.10ohm current sense resistor, so the current limits can be calculated as follows: [Current Limit = VREF x 2]
Warning
Please do not exceed the current rating of the motor current, or motor and motor driver will be over-heated, or even damage.
Micro-stepping¶
| Microstep | MS1 | MS2 | MS3 |
|---|---|---|---|
| Full Step | Low | Low | Low |
| ½ Step | High | Low | Low |
| ¼ Step | Low | High | Low |
| ⅛ Step | High | High | Low |
| 1/16 Step | Low | Low | High |
| 1/32 Step | High | Low | High |
| 1/64 Step | Low | High | High |
| 1/128 Step | High | High | High |
Attention¶
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