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ST820 Stepping Motor Driver Stepstick Smallest 45V Microstepping Peak Current 2.5A RAMPS Based on STSPIN820 for 3d printer parts

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ST820 Stepping Motor Driver Stepstick Smallest 45V Microstepping Peak Current 2.5A RAMPS Based on STSPIN820 for 3d printer parts

$17.08

5-9
Pieces
$16.23

10-19
Pieces
$15.37

20-49
Pieces
$13.66

≥50
Pieces

5 Piece/Pieces (Min. Order)

Quantity:

0 Piece，Product Price: US $ 0

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Product Description

Overview

Product Attributes

Item Type:: Motor

Brand Name:: Anet

Model Number:: St820 Stepper Motor Driver

Type :: St820

Current:: 2.5a Peek

Brand Name:: Anet

Packaging & Delivery

Selling Units:: Piece/Pieces

Single package size:: 40cm*30cm*20cm

Single gross weight:: 1kg

Lead Time :

Quantity（Piece/Pieces）	1 ~ 1000	>1000
Est. Time（days)	7	To be negotiated

If you finish the payment today, your order will ship out within the delivery date.

Product Introduction:

ST820 is a compact and easy to use evaluation board for the STSPIN820, the world's smallest 45 V microstepping motor driver rated at 2.5 A.It provides a very compact solution to evaluate the performance of the STSPIN820 stepper motor driver with a minimum set of additional equipment and without the need of additional devices. The hardware is fully compatible to be used together with RAMPS or other similar FFF 3D printing platforms, representing a very fast drop-in replacement of similar solutions. Contrary to most other competitors solutions, it helps customers to really exploit the benefits of working at high microstepping resolution. The microstepping resolution can be easily set to one of eight available values through M1, M2 and M3 inputs: full-step, 1/2, 1/4, 1/8, 1/16, 1/32, 1/128 and 1/256 of step. It is simply controlled through step and direction ports and embeds the PWM current control algorithm with selectable decay mode (fast + slow or slow) and the adjustable reference voltage level through an embedded potentiometer. The STSPIN820 features a full set of protections making it a bullet proof device for a wide range of industrial applications.

Major Features :

Operating voltage: 7 V to 45 V

Continuous current up to 1.5 A per phase

Maximum current up to 2.5 A per phase Integrated low RDS(ON) power stages (HS + LS = 1 Ω typ.)

Microstep resolution easily settable through jumpers: full-step, 1/2, 1/4, 1/8, 1/16, 1/32, 1/128 and 1/256 of step Simple step and direction control interface

Adjustable current control through a potentiometer to set the ref. voltages

Embedded PWM current control with selectable decay mode (fast or slow)

Full set of embedded protections

1. Non-dissipative overcurrent

2. Undervoltage lockout

3. Thermal shutdown

4. Short-circuit

Compatible with RAMPS and similar open source solutions for FFF 3D printers

Very compact footprint: 15 x 20 mm

Package:

1*ST820

1*Heatsink

Gift:everyone only have 1pc screwdriver

(1) Minimum current could be present due to the PWM current control operation

(2) The overcurrent protection of the STSPIN820 could limit the actual peak current

Modify the peak current range

The trimmer can be adjusted by modifying some board components.

In particular the components contributing to the definition of the peak current are:

• Both the sensing resistors

• Pull-up resistor (R6 = 39K)

• Sensing resistor (R8 and R9 = 0.15R)

The detailed formula is the following:

Changing the sensing resistors requires particular attention:

• Bust the sensing resistors must have the same value

• Power dissipation on the resistors is equal to Ipeak2 × Rsense. The power rating must be selected accordingly.

Note

Warning! Some of the components mounted on the board could reach hazardous temperatures during operation.

While using the board, please adhere to the following precautions:

Do not touch the components
Do not cover the board
Do not put the board in contact with flammable materials of with materials releasing smoke when heated

After operation, allow the board to cool down before touching it.

Setting the step mode

The inputs MS0, MS1 and MS2 sets the step mode of the STSPIN820 driver as listed in the table below.

Related Keywords

3D Printer Parts & Accessories, Computer & Office, Cheap 3D Printer Parts & Accessories

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