Feature: 1.H bridge bipolar constant phase flow drive 2.DC power supply: 9V-42V 3. the maximum 4.0A of the eight kinds of output current 4. input signal high speed photoelectric isolation 5. offline to maintain the function 6. semi closed enclosure can be adapted to a more stringent environment 7. to provide energy-saving semi-automatic current lock function 8. built-in temperature protection and over current protection. IC parameter: single chip bipolar sine microstep stepper motor driver up to 42V resistance (a ) = 0.4 the forward and reverse rotation control 5 subdivision mode options (1/1, 1/2, 1/4, 1/8, 1/16,1/32) output current: IOUT = 4.0A (peak, in 100ms) rated output: IOUT = 3.5 A package: HZIP25 - 1.00F input port internal pull-down resistor: 100 K alarm output pin current:Ialert = 1mA monitoring output pin (MO): Imo= 1mA with reset and enable pin with standby function Break through the traditional, single power supply built in overheating protection (TSD) circuit Undervoltage protection, built-in (UVLO) circuit built-in overcurrent detection (ISD), circuit Package Included: 4x Motor Driver
A**N
Order was not correct but still works with lower settings
Recieved 3 of the .9a and one 4.5a model
E**K
False advertising.
As others have stated. False advertising, chip is different. Board no longer includes the power and alarm lights shown in the picture (although the housing still has the pwr/alarm label). Overall scam.
D**L
Seem to work ok
I thought they were bad, but turns out my ebay nema 17 motors were mislabeled, will update.
T**.
Works with limitations
Had to set the max current very low to prevent stepper feedback from tripping the over volt limits. Capacitors, diodes and other systems did not work. Voltages over the 42v limit were never seen on the oscilloscope.
Z**Z
Seems to be working well, powers my nema 23 motors with excellent torque at 12v
Excellent so far
W**R
Surprisingly robust.
I have abused these and they work great. Ordered 4 when I needed 3 thinking I would need a spare and haven’t killed one yet.
J**S
OK
I am using Nema 23's and they seem to be working just fine
R**L
Works great
Very happy with this item
Trustpilot
2 weeks ago
1 month ago
