AMIS30522C522 - 800mA Micro-Step Stepper Motor Driver | onsemi
N.º de pieza: AMIS30522C522 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.18 | $6,18 |
| 10 | $5.55 | $55,50 |
| 100 | $4.94 | $494,00 |
| 500 | $4.44 | $2.220,00 |
| 1.000 | $4.16 | $4.160,00 |
AMIS30522C522 Descripción general
An stepper motor driver is an integrated power and logic IC that converts step/direction commands from a host microcontroller into precisely controlled current in each winding of a two-phase bipolar stepper motor. It sits inside the motor-control subsystem hierarchy: stepper motor driver -> motor driver -> motor control -> power management -> semiconductor. The AMIS30522C522 is part of the onsemi AMIS-30522/NCV70522 family and uses I2T100 high-voltage mixed-signal technology so analog power stages and digital control logic coexist on a single die.
Key features of the AMIS30522C522 include a current-translation table for microstepping, on-chip 5 V regulator to supply external microcontrollers, programmable peak current up to 800 mA per phase, programmable slow/fast decay and PWM frequencies, integrated charge pump for the high-side transistors, SPI control interface plus dedicated step (NXT) and direction (DIR) input pins, and a watchdog reset output. The chip operates across the full automotive battery range. The integrated charge pump and bootstrap diodes minimize external component count, allowing compact PCB designs.
Architecturally, the AMIS30522C522 uses a dual H-bridge power MOSFET output stage to drive both phases of a bipolar stepper with synchronous rectification. The current regulation loop runs from a sense resistor and an internal DAC reference. Microstepping is achieved via a sine-cosine weighted current-translation table, while commands integrate directly through a single NXT clock pin per step. This produces smoother rotation than full- or half-step drivers at the cost of higher switching loss.
Typical applications for the AMIS30522C522 are HVAC flap and valve actuators, instrument cluster gauges, headlight leveling mechanisms, throttle-by-wire positioning, general-purpose automation stepper drives, and laboratory instrumentation. The integrated voltage regulator and watchdog simplify host MCU integration. The NQFP-32 package is suitable for both hand-soldered prototypes and high-volume automotive SMT lines.
Designers should ensure adequate heatsinking because the chip can dissipate several watts at 800 mA output. Add bulk reservoir capacitors at the motor supply pin (VMOT) to absorb back-EMF, and keep the analog/digital ground returns short or the impact of motor inrush will be visible on the logic supply. The AMIS-30522 product page lists automotive-grade NCV-prefixed variants for the same lifecycle - choose NCV for automotive-qualified designs.
This page synthesizes distributor pricing, drop-in alternatives, and SPI configuration notes that go beyond the manufacturer datasheet - including package-level details, microstep programming references, and practical decoupling guidance.
Alternativas directas para AMIS30522C522 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
AMIS30522C5222G
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AMIS30522C5222RG
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
NCV70522
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AMIS-30512
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AMIS30522C522 Valores máximos y características eléctricas
| Motor Type | Bipolar stepper |
| Configuración de salida | Dual H-bridge (Power MOSFET) |
| Peak Output Current per Phase | 800 mA |
| Logic Supply Voltage (VDD) | 5 V (on-chip regulator output) |
| Control Interface | SPI + NXT/DIR pins |
| Step Resolution | Microstep (programmable via SPI) |
| On-chip Regulator | 5 V, supplied to external MCU |
| Watchdog Reset Output | Yes (for external MCU supervision) |
| Charge Pump | Integrated (for high-side gate drive) |
| Process Technology | I2T100 (high-voltage mixed-signal) |
| Encapsulado | 32-NQFP (7x7 mm) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant (per DigiKey listing) |
| Automotive Qualification | Family includes NCV70522 variant |
| Application Grade | Industrial / Automotive capable |
Configuración de pines de AMIS30522C522
| Pin 1 | DOUT — SPI data output |
| Pin 2 | NXT — Next microstep clock input |
| Pin 3 | DIR — Direction control input |
| Pin 4 | VDD — 5V logic supply output |
| Pin 5 | VSS — Logic ground |
| Pin 6 | CLK — SPI clock input |
| Pin 7 | CSN — SPI chip select (active low) |
| Pin 8 | DIN — SPI data input |
| Pin 9 | WDO — Watchdog reset output |
| Pin 10 | MOT_EN — Motor enable input |
| Pin 11 | SLEEP — Sleep mode input |
| Pin 12 | RESET — Reset input |
| Pin 13 | VMOT — Motor supply voltage |
| Pin 14 | VMOT — Motor supply voltage |
| Pin 15 | OUT1A — Phase A output 1 |
| Pin 16 | OUT1B — Phase A output 2 |
| Pin 17 | PGND — Power ground |
| Pin 18 | PGND — Power ground |
| Pin 19 | OUT2A — Phase B output 1 |
| Pin 20 | OUT2B — Phase B output 2 |
| Pin 21 | NC — Not connected (per datasheet) |
| Pin 22 | NC — Not connected (per datasheet) |
| Pin 23 | NC — Not connected (per datasheet) |
| Pin 24 | CP1 — Charge pump capacitor 1 |
| Pin 25 | CP2 — Charge pump capacitor 2 |
| Pin 26 | VCP — Charge pump voltage |
| Pin 27 | NC — Not connected (per datasheet) |
| Pin 28 | NC — Not connected (per datasheet) |
| Pin 29 | NC — Not connected (per datasheet) |
| Pin 30 | NC — Not connected (per datasheet) |
| Pin 31 | NC — Not connected (per datasheet) |
| Pin 32 | EP — Exposed thermal pad (PGND) |
Aplicaciones típicas
AMIS30522C522 es adecuado para 6 aplicacións: HVAC Flap and Valve Actuator, Headlight Leveling Stepper Drive, Instrument Cluster Gauge Drive, Industrial Stepper Automation Drive, Medical Infusion Pump Stepper, Marine Autopilot Stepper Drive.
HVAC Flap and Valve Actuator
The AMIS30522C522 is well-suited to HVAC flap and valve actuators because its 800 mA per-phase output can drive small to medium bipolar steppers while running directly from the 12 V automotive supply. The integrated 5 V regulator supplies the host MCU without a separate LDO, which simplifies PCB layout in tightly packaged HVAC modules. SPI programmability lets one board design serve multiple motor sizes by simply changing register values. Per onsemi datasheet amis-30522-d.pdf, the AMIS-30522 family is targeted at 'general-purpose stepper motor applications in the automotive, industrial, medical and marine environment', and the on-chip watchdog reset improves system safety in unattended actuators.
Recomendado
Headlight Leveling Stepper Drive
The AMIS30522C522's 800 mA per-phase output and full automotive battery operating range make it a strong fit for headlight-leveling stepper modules. The chip accepts NXT/DIR commands from a body-control MCU and microsteps the leveling motor to its target position. The integrated charge pump eliminates external bootstrap components, which keeps the PCB footprint small enough to fit inside the headlight housing. The onsemi datasheet highlights automotive battery compatibility and the NCV70522 variant for AEC-Q100 automotive projects. Choosing AMIS30522C522 reduces BOM cost versus discrete H-bridge plus gate-driver designs.
Recomendado
Instrument Cluster Gauge Drive
The AMIS30522C522 microsteps the small bipolar steppers used in instrument cluster gauges (speedometer, tachometer, fuel level). Microstepping smooths needle motion and removes audible resonance, which is critical for premium dashboards. The on-chip 5 V regulator can supply the gauge MCU directly, and the watchdog output keeps the cluster functional even if the host resets. With programmable peak current up to 800 mA, the same driver covers both small stepper gauges and larger climate-control actuators, simplifying platform design across vehicle lines.
Recomendado
Industrial Stepper Automation Drive
For factory-automation conveyor diverters and small pick-and-place axes, the AMIS30522C522 provides deterministic step response via the NXT pin while SPI lets the PLC tune current and decay modes. The 32-NQFP package with thermal pad is well suited to 4-layer industrial PCBs that share chassis with motors. onsemi specifies the AMIS-30522 for industrial applications alongside the NCV70522 for automotive, so a single firmware platform can serve both factory and vehicle environments. The integrated watchdog reduces PLC scan burden.
Recomendado
Medical Infusion Pump Stepper
The AMIS30522C522 is appropriate for medical infusion pumps and laboratory dosing instruments where microstepping smoothness directly translates to flow precision. SPI programmability lets the firmware implement closed-loop current control based on back-EMF sensing without changing the driver IC. The watchdog reset protects against MCU crashes during unattended dosing cycles. The onsemi datasheet notes the AMIS-30522 family is suited to 'medical' environments, and the integrated 5 V regulator reduces BOM count in size-constrained medical enclosures.
Recomendado
Marine Autopilot Stepper Drive
Marine autopilot rudder drives use small bipolar steppers where the AMIS30522C522's full automotive-voltage tolerance covers marine 12 V/24 V battery transients. Microstepping eliminates the audible whine that would otherwise disturb passengers, and the integrated watchdog protects against MCU lockups in remote marine electronics. onsemi explicitly lists 'marine' as a target environment for the AMIS-30522 family. The 32-NQFP package is mechanically robust and easily conformal-coated for marine humidity protection.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AMIS30522C522 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | AMIS30522C5222G | AMIS30522C5222RG | NCV70522 | AMIS-30512 |
|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi | onsemi |
| Package | 32-NQFP (7x7) | 32-NQFP (7x7) | 32-NQFP (7x7) | 32-NQFP (7x7) | 32-NQFP (7x7) |
| Peak Output Current per Phase | 800 mA | 800 mA | 800 mA | 800 mA | 800 mA |
| Automotive Grade (AEC-Q100) | No (industrial) | No (industrial) | No (industrial) | Yes (NCV prefix) | No (industrial) |
| Control Interface | SPI + NXT/DIR | SPI + NXT/DIR | SPI + NXT/DIR | SPI + NXT/DIR | SPI (different register map) |
| On-chip 5V Regulator | Yes | Yes | Yes | Yes | Yes |
| Watchdog Reset Output | Yes | Yes | Yes | Yes | Yes |
| Charge Pump | Integrated | Integrated | Integrated | Integrated | Integrated |
| RoHS Compliant | Yes | Yes | Yes | Yes | Yes |
Diferenciadores clave
- On-chip 5V regulator and watchdog reset (frente a AMIS-30512)
- Full automotive-voltage compliance with industrial pricing (frente a NCV70522)
- Integrated charge pump eliminates bootstrap components (frente a TMC2208)
Notas de diseño
Estimated: at 800 mA per phase and 12 V VMOT, dissipation can reach 1.5–3 W depending on load and switching frequency. The 32-NQFP thermal pad must be soldered to a copper pour of at least 1 square inch on a 4-layer PCB to keep junction temperature rise acceptable. For continuous high-current operation, add a small heatsink or increase top-side copper area. Always cross-check the datasheet SOA before high-temperature testing.
Place a 100 nF ceramic plus 10 uF bulk capacitor at the VMOT pin to absorb back-EMF from the motor windings. Add a separate 100 nF + 4.7 uF combination at the VDD pin to keep the on-chip 5 V regulator stable. Reverse-polarity protection on VMOT is recommended because the AMIS30522C522 has no internal reverse-battery protection, and the automotive environment is known for jump-start transients.
Route the SPI lines (CLK, DIN, DOUT, CSN) away from the motor phase outputs to avoid capacitive coupling of dV/dt noise into the digital signals. Keep the charge-pump flying capacitor traces (CP1, CP2) short and symmetric. Place the exposed thermal pad on a contiguous ground pour and stitch with multiple vias to inner ground planes to minimize thermal impedance.
Do not float the SLEEP or RESET pins - both must be tied to VDD through a 10 kohm resistor to ensure the AMIS30522C522 powers up in the active operating mode. If left floating, the part may enter an undefined state and not respond to SPI commands. Also remember that NXT is the step-clock input and DIR sets rotation direction; missing either causes the motor to remain stationary despite valid SPI configuration.
Información de cumplimiento
AMIS30522C522 is RoHS and lead-free compliant per DigiKey listing. The automotive-grade NCV-prefixed NCV70522 is the AEC-Q100-qualified sibling; the AMIS30522C522 itself is industrial-grade. Halogen-free status not stated in the provided data.
