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STSPIN220 Low-Voltage Stepper Motor Driver Carrier - Pololu 2876
Stepper motor driver powered from 1,8 V to 10 V. Maximum resolution: 1/256 koku. Can operate without heat sink or forced air flow at 1.1 A per phase.
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Product description: Polol STSPIN220 - stepper motor controller
The system allows to control a singlebipolar stepper motor. It offers a wide range of step resolutions (from full to 1/256 steps). By setting the current-voltage parameters, higher step speeds are possible.
STSPIN220 works directly with 3.3 V and 5 V systems. The diagram below shows how to connect to a microcontroller.
The controller requires connection oflogical voltage (from 3 to 5 V)through VCC and GND outputs andmotor supplyvoltagefrom 1.8 Vto 10 V throughVIN and GND outputs. The power supplies should have appropriate decoupling capacitors located close to the board and should be able to deliver the expected currents. The system has protections against overheating, short circuit and exceeding the maximum current.
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Polol STSPIN220 stepper motor controller specification
- Minimum input voltage: 1,8 V
- Maximum input voltage: 10 V
- Continuous current per phase: 1.1 A
- Maximum current per phase: 1,3 A
- Minimum logical voltage: 1,6 V
- Maximum logical voltage: 5,5 V
- Microstep resolution: full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256
- Current limit control: potentiometer
- Soldering pins included
- Dimensions: 15.2 x 20.3 mm
- Weight: 1,4 g
The step size is selected using M0 - M4 inputs. The table below shows how to obtain the appropriate step resolution. The current limit must be set low enough for proper operation of the controller modes. Otherwise, the intermediate current levels will not be properly maintained and the motor will skip the microsteps.
| MODE1 | MODE2 | MODE3 (STEP) | MODE4 (DIR) | Resolution |
|---|---|---|---|---|
| Low | Low | Low | Low | Full step |
| High | Low | High | Low | Half step |
| Low | High | Low | High | 1/4 step |
| High | High | High | Low | 1/8th step |
| High | Low | High | High | 1/8th step |
| High | High | High | High | step 1/16 |
| Low | High | Low | Low | 1/32 step |
| Low | Low | Low | High | 1/32 step (1) |
| High | High | Low | High | 1 / 64 step |
| Low | High | High | High | 1/64th step |
| High | Low | Low | Low | 1/128 step |
| Low | Low | High | Low | 1/128 step (1) |
| High | High | Low | Low | 1/256 step |
| Low | High | High | Low | 1/256 step |
| High | Low | Low | High | 1/256 step |
| Low | Low | High | High | 1/256 step (1) |
(1) Maintaining low states on the inputs MODE1 and MODE2 after configuring the step resolution forces the controller to full step mode instead of the selected configuration.
STSPIN220 has 2 different inputs to control power, STBY /RESET and EN/FAULTstates:
- low state on STBY pin: the controller enters low power mode, turns off the motor outputs and resets the translation table. Default high state on the STBY pin
- the low state on the ENABLE pin: turns on the motor by default
Current limitation
STSPIN supports active pad limitation for high jumping speeds. One way to set the current limit is to set the controller to full step mode and measure the current flowing through a single motor coil without STEP input timing. The measured current will be equal to the current limit.
Current limit = VREF x 5
Attention! The coil current may be very different from the power supply current. When setting the current limit, use the current measured at the power supply. If the controller operates in full crow mode, both coils will always be on and limited to 100% of the current setting. If the controller operates in one of the microcontrol modes, the current flowing through the coils will change with each step from 0% to 100% of the set limit. |
Useful links
| Name | Value |
|---|---|
| Voltage to | 1,8 V |
| Voltage from | 10 V |
| Current | 1,1 A |
| Channels | 1 |
| Width | 8 cm |
| Height | 0.5 cm |
| Depth | 8.7 cm |
| Weight | 0.003 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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