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UM2434
User manual
Getting started with the EVALSP820-XS evaluation board
Introduction
The
EVALSP820-XS
is an easy to use evaluation board for the STSPIN820, providing a compact solution to evaluate the
performance of the STSPIN820 stepper motor driver with minimal external equipment and without the need for extra
components.
The hardware is fully compatible with RepRAp Arduino Mega Poloulo Shield (RAMPS) or other similar Fused Filament
Fabrication (FFF) 3D Printing platforms, representing a very fast drop-in replacement of similar solutions. Contrary to most other
competitor solutions, the EVALSP820-XS helps customers to really exploit the benefits of working at high microstepping
resolution.
UM2434 - Rev 1 - June 2018
www.st.com
For further information contact your local STMicroelectronics sales office.
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Related Manuals for ST EVALSP820-XS
Summary of Contents for ST EVALSP820-XS
- Page 1 The hardware is fully compatible with RepRAp Arduino Mega Poloulo Shield (RAMPS) or other similar Fused Filament Fabrication (FFF) 3D Printing platforms, representing a very fast drop-in replacement of similar solutions. Contrary to most other competitor solutions, the EVALSP820-XS helps customers to really exploit the benefits of working at high microstepping resolution.
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Page 2: Board Overview
UM2434 Board overview Board overview The main characteristics of the board are: • Supply voltage from 7 V to 45 V • Output current up to 1.5 A rms for each motor phase • Peak current regulation through trimmer • Form factor and connectivity compatible with RAMPS (RepRap Arduino Mega Pololu Shield) or similar boards •... -
Page 3: Quick Start
UM2434 Quick start Quick start Safety precautions 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 •... -
Page 4: Setting Off Time Duration
UM2434 Setting off time duration Setting off time duration The R5 resistor sets the off time duration for the PWM current control circuitry as indicated in the figure below. Low resistance value imposes a short off time reducing the current ripple into the motor phases. The default value is 10 kΩ, corresponding to about 14 µs. -
Page 5: Schematic, Layout And Bill Of Material
UM2434 Schematic, layout and bill of material Schematic, layout and bill of material Figure 3. Schematic 4.7UF 100NF STSPIN820 STBY/RESET OUTA1 OUTA1 EN/FAULT OUTA2 OUTA2 STEP VMOT STCK SENSEA1 SENSEA2 Connected on DECAY SNSA RAMP 1.4 MODE1 OUTB1 OUTB1 MODE2 R3 39K OUTB2 OUTB2... -
Page 6: Table 4. Bill Of Material
UM2434 Schematic, layout and bill of material Table 4. Bill of material Item Qty. Ref. Part/ value Voltage/ watt/ Tolerance Package Manufacturer Orderable part ampere number 10 NF 50 V 0.15 0603 C2, C5 1 NF 50 V 0.15 0603 100 NF 100 V 0.15... -
Page 7: Revision History
UM2434 Revision history Table 5. Document revision history Date Version Changes 28-Jun-2018 Initial release. UM2434 - Rev 1 page 7/11... -
Page 8: Table Of Contents
UM2434 Contents Contents Board overview ..............2 Quick start . -
Page 9: Um2434 - Rev 1
UM2434 List of tables List of tables Table 1. Board pinout ............... 2 Table 2. - Page 10 UM2434 List of figures List of figures Figure 1. Board overview..............2 Figure 2.
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Page 11: Um2434 - Rev 1
ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...
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