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STMicroelectronics STSPIN32G0A2
- Part No.:
- STSPIN32G0A2
- Manufacturer:
- STMicroelectronics
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
STSPIN32G0A2.pdf
- Description:
- VFQFPN 7X7X1.0 48 PITCH 0.5
- Quantity:
- Payment:
- Shipping:
Inventory:3,486
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Product details
Overview
STSPIN32G0A2 from STMicroelectronics is a highly integrated three-phase brushless motor controller system-in-package combining a 32-bit ARM® Cortex™-M0+ MCU (STM32G031x8), triple half-bridge gate drivers (600 mA sink/source), 3.3 V DC-DC buck regulator, 12 V LDO, three rail-to-rail op-amps, and overcurrent comparator - all in a single 48-pin QFN package. It enables field-oriented control and 6-step sensorless BLDC driving for battery-powered power tools and e-bikes.
For engineers reviewing the STSPIN32G0A2 datasheet, STSPIN32G0A2 pinout, STSPIN32G0A2 application, or STSPIN32G0A2 equivalent, key selection considerations include its integrated 3× op-amp current-sensing path, dedicated motor control timer, UVLO protection on VM/VDD/VREG12/VBOOT, and -40 to +125 °C operating range for industrial-grade motor drives.
Technical Context
The STSPIN32G0A2 integrates a STM32G031x8 MCU core running at up to 64 MHz with 64 kB flash and 8 kB SRAM, coupled with analog front-end circuitry including three independent op-amps (OP1/OP2/OP3) and an overcurrent comparator (OCCOMP) referenced to VREF+. Its gate driver stage features cross-conduction prevention logic and integrated bootstrap diodes across all three half-bridges (HSU/LSU, HSV/LSV, HSW/LSW).
Power management includes a 200–330 kHz switching DC-DC buck converter delivering 3.3 V @ 70 mA and a linear 12 V regulator for gate drive supply, both with thermal and overcurrent protection. The device supports motor commutation via GPIO-controlled PWM inputs (PA8–PA10, PB13–PB15) and provides dedicated OC_SEL and OC_COMP_INT signals for hardware-based fault handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 6.7–45 V VM input range enables direct battery connection for 2S–12S Li-ion or 12–48 V DC systems. |
| Gate Drive Current | 600 mA sink/source per high/low-side output ensures robust MOSFET switching for ≤1 kW motor drives. |
| MCU Core | ARM Cortex-M0+ @ 64 MHz with 64 kB flash and 8 kB SRAM supports real-time FOC and sensorless algorithms. |
| ADC Performance | 12-bit ADC with 2.5 Msps conversion rate and up to 11 external channels enables precise shunt-based current sampling. |
| Op-Amp Count | Three rail-to-rail op-amps (OP1/OP2/OP3) provide dedicated signal conditioning paths for U/V/W phase current sensing. |
| Thermal Range | -40 to +125 °C ambient operation supports deployment in sealed power tools and outdoor e-bike controllers. |
| Protection Features | UVLO on VM/VDD/VREG12/VBOOT, thermal shutdown at 130–150 °C, and hardware overcurrent latch ensure fail-safe motor control. |
Pinout & Package
STSPIN32G0A2 uses a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (EPAD) internally connected to GND for enhanced thermal dissipation in motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HSU / HSV / HSW | High-side gate driver outputs | Drive upper MOSFETs of U/V/W half-bridges; each rated for 600 mA source/sink with interlock logic. |
| LSU / LSV / LSW | Low-side gate driver outputs | Drive lower MOSFETs; synchronized with HS outputs to prevent shoot-through. |
| VBOOTU / VBOOTV / VBOOTW | Bootstrap supply inputs | Provide floating bias for high-side drivers; support ≥13 V bootstrap voltage with 120–240 Ω internal diode RDS(on). |
| OP1P/OP1N/OP1O, OP2P/OP2N/OP2O, OP3P/OP3N/OP3O | Op-amp input/output terminals | Three independent amplifiers for shunt current sensing on all three motor phases. |
| OCCOMP | Overcurrent comparator input | Accepts differential voltage up to ±1 V; triggers hardware fault when >255 mV threshold exceeded. |
| nSTBY | Active-low standby enable | Puts device into ultra-low-power mode (<1.1 mA VM current); wake-up via GPIO or timer event. |
| PA8–PA10, PB13–PB15 | MCU GPIOs mapped to gate inputs | Directly control HS/LS states; configured as PWM outputs for six-step or FOC commutation. |
| VM, REG12, REG3V3, GND | Power supply terminals | VM = main bus input (6.7–45 V); REG12 = 12 V gate driver supply; REG3V3 = 3.3 V MCU/system supply. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Motor Control MCU | STM32G031x8 with 64 MHz Cortex-M0+, 64 kB flash, and hardware parity SRAM enables certified motor firmware execution. |
| Triple Half-Bridge Gate Drivers | 600 mA sink/source per channel with cross-conduction prevention eliminates need for external dead-time logic. |
| Dedicated Analog Front-End | Three rail-to-rail op-amps + comparator support simultaneous three-shunt current sensing without external signal conditioning. |
| Embedded Power Regulation | 3.3 V DC-DC buck (200–330 kHz, 70 mA) and 12 V LDO (12 V ±0.6 V, 10 mA min.) reduce external BOM count by ≥5 components. |
| Hardware Fault Protection | UVLO on VM/VDD/VREG12/VBOOT, thermal shutdown (130–150 °C), and latched overcurrent (1 A threshold) enable safe failure modes. |
| Industrial Temperature Range | Guaranteed operation from -40 to +125 °C ambient enables use in sealed enclosures without forced cooling. |
Applications
| Battery-Powered Power Tools | Portable Vacuum Cleaners |
|---|---|
|
Use Scenario: Cordless drill/driver with variable speed and torque control under 20 V battery input. IC Role / Device Role / Timing Role: System-in-package motor controller executing sensorless 6-step commutation and closed-loop speed regulation. Use Value: Eliminates discrete MCU, gate drivers, op-amps, and regulators - reducing PCB area by >40% and component count by ≥12. |
Use Scenario: Handheld vacuum with brushless blower motor requiring compact, low-noise, high-efficiency drive. IC Role / Device Role / Timing Role: Integrated gate driver + MCU performing FOC with real-time current feedback via three op-amps. Use Value: Enables >90% efficiency at 15,000 RPM using only internal 3.3 V and 12 V regulators - no external LDOs or DC-DC needed. |
| E-Bike Motor Controllers | Industrial Pumps & Fans |
|
Use Scenario: Mid-drive e-bike system with torque sensing, pedal assist, and regenerative braking support. IC Role / Device Role / Timing Role: Main motor control IC managing Hall sensor interface, FOC, and thermal monitoring across full temperature range. Use Value: On-chip 12-bit ADC (2.5 Msps) and op-amps allow precise phase current measurement for smooth torque delivery and stall detection. |
Use Scenario: HVAC fan module requiring silent, reliable, and energy-efficient 3-phase BLDC drive in constrained space. IC Role / Device Role / Timing Role: Standalone motor controller implementing speed ramping, soft-start (2.5–7.5 ms), and overtemperature shutdown. Use Value: Integrated UVLO and thermal protection eliminate need for external supervision circuits - simplifying safety certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase BLDC motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32G0A1 | Same package and MCU; includes fourth op-amp (OP2P/OP2N/OP2O routed to pins 48/1/2) but lacks PA15 and PB7 GPIOs. | Preferred where four-shunt current sensing or dual-motor control is required; less GPIO flexibility than A2. | Select A1 if additional op-amp channel is needed; choose A2 for maximum GPIO count (including PA15/PB7) and three-op-amp configuration. |
| STSPIN32F0 | Uses older STM32F031 MCU (Cortex-M0, 48 MHz, 32 kB flash); no integrated 3.3 V DC-DC; requires external 3.3 V supply. | Suitable for cost-sensitive, lower-performance applications without need for advanced FOC or high-speed ADC. | A2 offers higher integration, better performance, and broader voltage range; F0 remains viable only for legacy designs or strict BOM cost targets. |
Compared with STSPIN32G0A1, the A2 variant trades one op-amp channel for two extra GPIOs (PA15, PB7), enhancing peripheral expandability; versus STSPIN32F0, it delivers superior compute capability, integrated power regulation, and extended thermal range - critical for next-generation portable motor systems.
Availability
STSPIN32G0A2 is available at Aetrix Electronics and suitable for battery-powered power tools, portable vacuum cleaners, and e-bike motor controllers requiring stable component supply and long-term industrial availability.
Supply support for STSPIN32G0A2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, and motor control solutions for industrial, automotive, and consumer markets.
The STSPIN32G0 series belongs to ST's system-in-package motor control product line, designed specifically to reduce BOM and PCB area in compact, high-efficiency three-phase BLDC applications - targeting portable and battery-operated equipment.
FAQ
What is the maximum motor power supported by STSPIN32G0A2?
The STSPIN32G0A2 supports motor drives up to approximately 1 kW continuous output, based on its 600 mA gate drive capability, thermal resistance (RthJA = 45.6 °C/W), and 125 °C max ambient rating. Actual power depends on heatsinking, MOSFET selection, and switching frequency - typical implementations achieve 300–700 W in compact power tools with proper layout and copper pour.
Does STSPIN32G0A2 support Hall-effect sensor commutation?
Yes, the integrated STM32G031x8 MCU supports Hall sensor inputs via configurable GPIOs (e.g., PA0–PA2), and the device's block diagram confirms dedicated timing resources for six-step commutation. The MCU firmware can implement Hall-based trapezoidal control, while the analog front-end remains available for current sensing or auxiliary functions.
How is overcurrent protection implemented in STSPIN32G0A2?
Overcurrent protection uses a dedicated comparator (OCCOMP) with a fixed 235–275 mV threshold, fed by op-amp outputs sensing shunt resistor voltages. When triggered, it asserts OC_COMP_INT to the MCU and can latch the gate drivers via OC_SEL. The response time includes ~120 ns comparator propagation delay plus deglitch filtering (35–50 ns), enabling sub-microsecond fault reaction.
Can STSPIN32G0A2 operate without external crystal oscillators?
Yes - the STSPIN32G0A2 embeds an internal 16 MHz RC oscillator for MCU clocking and supports multiple clock sources. While PF0-OSC_IN and PC14-OSC32_IN pins allow connection of external crystals (for precision timing or RTC), the device operates fully functional using internal clocks, simplifying BOM and layout for cost-sensitive applications.
STSPIN32G0A2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
STSPIN32G0A2 FAQ
1.How can I place an order for STSPIN32G0A2 through Aetrix?
Please submit a Request for Quotation (RFQ) for STSPIN32G0A2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STSPIN32G0A2 reliable?
The price and inventory of STSPIN32G0A2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STSPIN32G0A2 is usually 5 days.
3.What payment methods are accepted for STSPIN32G0A2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STSPIN32G0A2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STSPIN32G0A2?
STSPIN32G0A2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STSPIN32G0A2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STSPIN32G0A2?
For technical support, including STSPIN32G0A2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STSPIN32G0A2 requirements.
6.How does Aetrix verify that STSPIN32G0A2 is sourced from the original manufacturer or authorized distributors?
All STSPIN32G0A2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STSPIN32G0A2 meets industry standards.
7.What is the process for return or replacement of STSPIN32G0A2?
All STSPIN32G0A2 units undergo pre-shipment inspection (PSI). If there is an issue with STSPIN32G0A2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STSPIN32G0A2 part is unused and in its original packaging.
Return procedure for STSPIN32G0A2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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