EVALSP820-XS

Compact evaluation board for STSPIN820 stepper motor driver

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The EVALSP820-XS 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, the EVALSP820-XS 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.

Key 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 R_DS(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
- Non-dissipative overcurrent
- Undervoltage lockout
- Thermal shutdown
- Short-circuit
Compatible with RAMPS and similar open source solutions for FFF 3D printers
Very compact footprint: 15 x 20 mm

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Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DB3496: Compact evaluation board for STSPIN820 stepper motor driver	1.0	194 KB

User Manuals

	Description	Version	Size
	UM2434: Getting started with the EVALSP820-XS evaluation board	1.0	220 KB

Publications and Collaterals

Flyers

	Description	Version	Size
	Compact stepper driver board unleash the full potential of your high-res and high-speed 3D printer	06.2018	239 KB

Selection Guides

	Description	Version	Size
	X-NUCLEO expansion boards motor control - Selection guide	1.2	263 KB

Brochures

	Description	Version	Size
	Products and solutions for Smart industry	3.0	2 MB

Legal

License Agreement

	Description	Version	Size
	Evaluation products license agreement	1.6	74 KB

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Sample & Buy

Part Number	Core Product	Marketing Status	Unit Price (US$) *	Quantity	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
EVALSP820-XS	STSPIN820	Active : Product is in volume production	6.9	1	EAR99	-	MORE INFO	Buy Direct Add to cart	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Quality & Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	WEEE Compliant	Material Declaration**
EVALSP820-XS	Active	CARD	Industrial	Ecopack1	-

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.