STMicroelectronics STSPIN820 - stepper motor driver
Advanced 256 microsteps integrated motor driver with step-clock and direction interface
The STSPIN820 is a stepper motor driver which integrates, in a small QFN 4 x 4 mm package, both control logic and a low RDSon power stage.
The integrated controller implements a PWM current control with fixed OFF time and a microstepping resolution up to 1/256th of the step.
The device can be forced into a low consumption state.
The device offers a complete set of protection features including overcurrent, overtemperature and short-circuit protection.
Key features
- Operating voltage from 7 to 45 V
- Maximum output current 1.5 Arms
- RDSon HS + LS = 1 Ω typ.
- Microstepping up to 1/256th of step
- Current control with programmable OFF time
- Current sensing based on external shunt resistor
- Full protection set
- Non-dissipative overcurrent protection
- Short-circuit protection
- Undervoltage lockout
- Thermal shutdown
- Standby low consumption
Applications
- CCTV, security and dome cameras
- 3D printers
- Textile and sewing machines
- ATM and cash handling machines
- Medical equipment
- Industrial 2D printers
- Office and home automation
- Points of sale (POS)
- Robotics
EVALSP820-XS - Compact evaluation board for STSPIN820 stepper motor driver
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.
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
- 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
X-NUCLEO-IHM14A1 - Stepper motor driver expansion board based on STSPIN820 for STM32 Nucleo
The X-NUCLEO-IHM14A1 motor driver expansion board is based on the STSPIN820 monolithic driver for stepper motors.
It represents an affordable, easy-to-use solution for driving stepper motors in your STM32 Nucleo project, implementing motor driving applications such as 2D/3D printers, robotics and security cameras.
The STSPIN820 implements a PWM current control with constant OFF time adjustable via an external resistor and a microstepping resolution up to the 256th step.
The X-NUCLEO-IHM14A1 expansion board is compatible with the Arduino UNO R3 connector and the ST morpho connector, so it can be plugged to the STM32 Nucleo development board and stacked with additional X-NUCLEO expansion boards.
Features
- Operating voltage: 7 to 45 V
- Output current up to 1.5 Arms
- Fine tuning microstepping up to the 256th step
- Current control with adjustable OFF time
- Full protection set:
- Overcurrent protection
- Short-circuit protection
- Under voltage lock out
- Thermal shutdown
- Compatible with Arduino UNO R3 connector
- Compatible with STM32 Nucleo boards
- RoHS compliant
silica content library/npi/2018/stmicroelectronics-stspin820
STMicroelectronics STSPIN820 stepper motor driver | Avnet Silica
