STSPIN220 - 1/256 Microstep Stepper Driver QFN-16 | STMicroelectronics
N.º de pieza: STSPIN220 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0.74 | $0,74 |
| 10 | $0.68 | $6,80 |
| 100 | $0.61 | $61,00 |
| 500 | $0.55 | $275,00 |
| 1.000 | $0.49 | $490,00 |
STSPIN220 Descripción general
A stepper motor driver is a power management IC that translates low-power control signals into the sequenced phase currents required by bipolar stepper motors. Within the semiconductor hierarchy it sits under motor drivers and motor control ICs, bridging the gap between a microcontroller and the motor coil load. Stepper drivers combine logic (sequencer, translator), current regulation (PWM choppers), and a power stage (H-bridges) in a single device, replacing discrete transistor bridges and simplifying motion-control design.
Key features of the STSPIN220 include microstepping resolution as fine as 1/256 of a step for smooth, low-audible-noise motion, an integrated PWM current controller with fixed off-time for accurate coil current regulation, and a low RDS(on) power MOSFET output stage that minimizes conduction losses and heat generation. The device also integrates a full set of protection features, and supports a simple Step/Direction control interface compatible with common 3D-printer and motion-control host architectures.
From a technical standpoint, the two fully protected full-bridges drive both phases of a bipolar stepper, while the internal sequencer generates the microstep current profile selected through the microstep mode pins. The PWM current controllers compare the voltage across an external sense element with the reference set by VREF, regulating phase current with fixed off-time chopping. Fully protected operation covers overcurrent and thermal fault conditions, improving system robustness in cost-sensitive designs.
Typical applications include 3D printers and 3D-printer stepper driver boards, small robotics and camera-gimbal positioning, laboratory automation, portable battery-powered devices, and low-voltage bipolar stepper actuation up to the 10 V motor-supply class. Its 3x3 mm VFQFPN footprint makes it attractive for space-constrained carrier boards.
For design, size the sense resistor so full-scale coil current matches the VREF setting, and provide adequate copper area on the exposed pad for thermal dissipation at higher currents.
This page synthesizes distributor pricing, lifecycle information, and application guidance not found in the manufacturer datasheet alone.
Alternativas directas para STSPIN220 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
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Solicitar alternativasSTSPIN220 Valores máximos y características eléctricas
| Product Type | Bipolar stepper motor driver |
| Motor Supply Voltage (VM) | 1.8 V to 10 V |
| Microstepping Resolution | Up to 1/256 of a step |
| Number of Full-Bridges | 2 (fully protected) |
| Control Interface | Step/Direction |
| Current Control | PWM current control, fixed off-time |
| Output Stage | Power MOSFET, low RDS(on) |
| Protections | Overcurrent, thermal shutdown, fully protected bridges |
| Encapsulado | VFQFPN 3x3x1.0 mm, 16 pins |
| Tipo de montaje | Surface Mount |
| Standby Mode | Yes (STBY/RESET input) |
| Estado RoHS | Compliant |
Guía de configuración de pines de STSPIN220 vfqfpn 3x3x1.0 mm, 16 pins
Configuración de pines para STSPIN220 (encapsulado vfqfpn 3x3x1.0 mm, 16 pins). Este dispositivo de potencia presenta terminales de puerta, drenador y fuente. Para encapsulados no polarizados, consulte la hoja de datos del fabricante para conocer la orientación exacta del pin 1 y los detalles del footprint. Las aplicaciones habituales incluyen el diseño de fuentes de alimentación, el accionamiento de motores y la conmutación de cargas.
No hay datos detallados de patillaje disponibles para STSPIN220.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STSPIN220 es adecuado para 6 aplicacións: 3D Printer Stepper Control, Battery-Powered Portable Robotics, Camera Gimbal and Focus Control, Laboratory Automation and Sample Handling, Smart Home and IoT Actuators, Positio好ning and Test Equipment.
3D Printer Stepper Control
The STSPIN220 fits 3D-printer motion control because its Step/Direction interface is natively compatible with standard printer motherboard signals, and its 1/256-step microstepping delivers the smooth extruder and carriage motion that reduces layer artifacts and audible whine. The 1.8 V to 10 V motor supply class matches low-voltage printer designs and USB-powered compact printers. On typical carrier boards, the fixed off-time PWM current control is set by the sense resistor and VREF to match the stepper's rated coil current, while the integrated overcurrent and thermal protection guards against stall and nozzle-crash stall events. Its 16-pin VFQFPN 3x3 mm footprint drops into the classic 16-pin stepper-driver socket format used across many printer and breakout designs.
Recomendado
Battery-Powered Portable Robotics
For battery-driven robots and small actuators, the STSPIN220's low-voltage operation down to 1.8 V motor supply allows direct connection to one or two lithium cells through simple regulation, and its low RDS(on) MOSFET bridges minimize conduction losses to extend runtime. The 1/256 microstepping yields quiet, vibration-free joint and wheel motion, valuable in consumer robotics where acoustic noise matters. The standby input allows the host MCU to gate the driver off between movements, cutting idle consumption. Because the sequencer and current control are integrated, firmware load is limited to step pulse generation, freeing the microcontroller for navigation and sensor fusion tasks in space- and power-constrained designs.
Recomendado
Camera Gimbal and Focus Control
In camera gimbals, lens focus mechanisms, and zoom actuators, positional smoothness determines image quality, and the STSPIN220's 1/256-step microstepping provides the fine angular resolution needed to eliminate visible stepping in footage. The low-voltage 1.8 V to 10 V supply range matches small brushless-style steppers used in compact gimbal assemblies, while the low RDS(on) output stage limits self-heating inside sealed camera housings. Fixed off-time PWM current control keeps coil current accurate at low speeds where holding torque precision matters. The fully protected bridges tolerate mechanical stalling from focus end-stops, with overcurrent and thermal shutdown protecting the mechanism during jam conditions.
Recomendado
Laboratory Automation and Sample Handling
Lab automation equipment such as syringe pumps, micro-syringe dispensers, valve selectors, and sample-indexing stages relies on repeatable small increments, and the STSPIN220's 1/256-step resolution translates to fine volumetric or positional resolution without gearing. The 10 V maximum motor supply is sufficient for the small bipolar steppers typical of compact analytical instruments. Integrated current regulation ensures consistent torque across channels so multi-axis stations behave identically, and the Step/Direction interface connects directly to instrument MCUs without protocol translation. The 3x3 mm VFQFPN package supports dense multi-channel driver placement on a single control PCB, reducing board area in instrument chassis where every millimeter of enclosure volume is costly.
Recomendado
Smart Home and IoT Actuators
Smart locks, thermostat valve actuators, vent controllers, and motorized blinds increasingly use small bipolar steppers, and the STSPIN220 addresses this space economically by combining control logic and power stage in one 3x3 mm QFN. Its 1.8 V to 10 V motor supply supports battery and low-voltage DC adapter architectures, and the standby mode allows the driver to be fully disabled between infrequent actuations, preserving battery life in always-installed devices. The 1/256 microstepping delivers the quiet operation expected in residential environments, and the integrated protections (overcurrent, thermal shutdown) provide fail-safe behavior for unattended household hardware, meeting the robustness expectations of connected-home product qualification programs.
Recomendado
Positio好ning and Test Equipment
Bench instruments, probe positioners, adjustable optics stages, and calibration fixtures need precise incremental positioning, and the STSPIN220 provides 1/256-step microstepping with closed-loop-quality current regulation through its fixed off-time PWM controllers, giving repeatable micro-positioning at low cost. The Step/Direction interface integrates cleanly with FPGA- or MCU-based motion sequences in test fixtures, and the fully protected bridges survive operator errors such as blocked travel. Operating from motor supplies up to the 10 V class suits the small stepper motors embedded in instrument front panels. The 16-pin VFQFPN 3x3 mm package lets designers place one driver per axis on a single dense PCB, simplifying multi-axis test-station architectures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STSPIN220 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Package | VFQFPN 3x3x1.0 mm, 16 pins |
| Brand | STMicroelectronics |
| Microstepping | Up to 1/256 step |
| Motor Supply Voltage | 1.8 V to 10 V |
| Control Interface | Step/Direction |
| Current Control | Fixed off-time PWM |
| Protections | Overcurrent, thermal shutdown |
Diferenciadores clave
- Industry-leading microstepping granularity in the low-voltage class (frente a A4988)
- Complete single-chip integration in 3x3 mm (frente a DRV8833)
- Trade-off: limited motor voltage ceiling (frente a TMC2209)
Notas de diseño
Size the phase current sense resistor so the full-scale coil current matches the VREF threshold per the STSPIN220 datasheet formula: I_full-scale = VREF / (sense resistor gain factor). Use 1% or better sense resistors with adequate power rating, since chopping duty depends directly on this accuracy. Keep the motor supply decoupling capacitor (ceramic, e.g. 100 nF plus bulk electrolytic per datasheet recommendation) close to the VM pin to absorb PWM switching transients and prevent supply dips that corrupt microstep sequencing.
Estimated: conduction losses equal I_coil^2 x total RDS(on) of the two conducting FETs; verify the actual RDS(on) value in the STSPIN220 datasheet to compute dissipation for your coil current. Solder the exposed pad to a copper pour of at least several square centimeters on the top layer with thermal vias to inner planes. In sealed enclosures such as smart-lock housings, verify junction temperature against the datasheet thermal shutdown threshold with margin, since PWM chopping during hold phases continues to dissipate power.
Do not exceed the 10 V maximum motor supply; low-voltage stepper drivers fail quickly on 12 V rails. Route the two phase outputs with short, symmetric traces and keep the sense-resistor ground returns as a kelvin connection to the IC ground to prevent PWM noise from corrupting current sensing. Exercise the standby pin on power-up to guarantee a known sequencer state before issuing Step pulses, and never change microstep mode pins mid-step to avoid position jumps.
Información de cumplimiento
RoHS compliant per standard STMicroelectronics production flow for active motion ICs; REACH, halogen-free, and conflict-minerals declarations not explicitly stated in the provided data and require confirmation from ST product compliance documentation.
