LV8729 động cơ bước Driver 4 lớp chất nền cực êm lái xe LV8729 hỗ trợ lái xe 6V-36V full microstep lái xe controll

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LV8729 Stepper Motor Driver With Heat Sink Replace A4988 DRV8825 Compatible With MKS Gen V1.4 Ramps 1.6 1.4 1.5 3D Printer Parts

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.

Specifications:
Dimensions: 1.5mm * 2.0mm (Same with the A4988 and DRV8825)
Maximum drive current: 1.8A (Default 0.8A)
Operating voltage: 6V-36V, the proposed voltage is 12V
Support subdivisions: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128
Product Process: four layer PCB board
In the 64 subdivision or 128 subdivision controller it has a better ultra-quiet effect.

Note: Please make sure the connecting direction is right, or it will probably burn the driver chip and controller board. Recommend to do a good job of cooling for the module.


Driver current algorithm and its adjustment:
1. Driver current formula: I= Vref/(Rs*5), Rs=0.22Ohm, Imax=1.8A
2. Please DO NOT connect the motors when measuring the voltage, or it’s easy to burn the drive.
3. Please connect both the power supply and the USB for power when measuring the voltage.
4. Minor adjustment for potentiometer driver. Adjust it again after measurement to avoid burning driver by excessive current.
5. To increase the current by rotating the potentiometer clockwise slowly, and anticlockwise to reduce.

LV8729 Increases Heat Dissipation Tips:
To consider heat, LV8729 uses four layers of PCB to dissipate heat,meanwhile, the chip is attached with heatsink, which is default 1A.SinceLV8729 motor drive subdivision is relatively large, in order to the stable operation of the 3D printer,any stepper motor is to actively dissipate heat, for example, using fan, hanging heat sink,or installing a large fan for your cotroller board.

Package Included:
1pcs x LV8729 Stepper Motor Driver With Heat Sink




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