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STMicroelectronics STSPIN32G0B2
- Part No.:
- STSPIN32G0B2
- Manufacturer:
- STMicroelectronics
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
STSPIN32G0B2.pdf
- Description:
- VFQFPN 7X7X1.0 48 PITCH 0.5
- Quantity:
- Payment:
- Shipping:
Inventory:3,165
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Product details
Overview
STSPIN32G0B2 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), integrated 3.3 V DC-DC buck regulator, 12 V LDO, one rail-to-rail op-amp, and overcurrent comparator - all in a single 48-pin QFN package. It enables compact, cost-optimized field-oriented control (FOC) and 6-step sensorless BLDC drives for battery-powered tools and e-bikes.
For engineers reviewing the STSPIN32G0B2 datasheet, STSPIN32G0B2 pinout, STSPIN32G0B2 application, or STSPIN32G0B2 equivalent, key selection criteria include its 6.7–45 V operating range, embedded STM32G0 MCU with 64 kB flash/8 kB SRAM, single op-amp configuration (vs. three in A1/A2), dedicated motor control timer, and thermal/UVLO protections across VM, VREG12, VBOOT, and VDD rails.
Technical Context
The STSPIN32G0B2 integrates a dedicated analog front-end for motor current sensing: one operational amplifier (OP1) with ±7 mV input offset voltage and 10 MHz GBP supports shunt-based phase current measurement, feeding into the 12-bit ADC (2.5 Msps). Its gate driver stage features cross-conduction prevention logic and integrated bootstrap diodes, with HS/LS propagation delay matching ≤20 ns to minimize shoot-through risk during PWM commutation.
Unlike STSPIN32G0A1/A2 (3 op-amps) and B1 (2 op-amps), the B2 variant provides exactly one op-amp and omits OP2/OP3 pins - confirmed by Figure 4 and Table 6 pin mapping - while retaining full MCU peripheral set (23 GPIOs, 5 DMA channels, I²C/USART/SPI) and identical power architecture: 3.3 V buck (200–330 kHz, 70 mA output), 12 V LDO (12 V ±0.6 V at 10 mA), and UVLO thresholds of 6.3 V (VMOn), 2.65 V (VREG3V3On), and 6.3 V (VREG12On).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 6.7–45 V VM range enables direct battery connection for 2S–12S Li-ion or 12–36 V lead-acid systems without external pre-regulation. |
| Gate Drive Current | 600 mA sink/source per half-bridge supports driving MOSFETs with ≤1.4 Ω RDS(on) at 200 mA load, sufficient for <1 kW motor inverters. |
| MCU Core | ARM Cortex-M0+ @ 64 MHz with 64 kB flash (read/write protection) and 8 kB SRAM (parity-checked) executes real-time FOC loops with <5 µs interrupt latency. |
| ADC Performance | 12-bit ADC with 2.5 Msps sampling rate and up to 11 external channels captures fast current transients for precise torque control in sensorless algorithms. |
| Thermal Protection | Thermal shutdown at 130–150 °C with 20–40 °C hysteresis prevents latch-up during overload, enabling safe operation in sealed power tool enclosures. |
| Overcurrent Detection | Integrated comparator with 255 mV threshold and 50 ns deglitching triggers hardware fault response within 120 ns, protecting MOSFETs before destructive current rise. |
| Package | 48-pin QFN (7 × 7 mm, 0.5 mm pitch) with exposed EPAD for thermal dissipation - Rth(JA) = 45.6 °C/W under JEDEC 2s2p board conditions. |
Pinout & Package
STSPIN32G0B2 uses a 48-pin QFN package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad (EPAD) internally connected to GND. Pin layout follows standard top-view numbering (Figure 11); pin functions are validated per DS14714 Rev 1 Table 6 and Figure 11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pin 7) | Main power supply input | Accepts 6.7–45 V bus voltage; feeds DC-DC buck, LDO, and gate drivers - UVLO threshold 6.3 V ensures startup only above minimum motor drive voltage. |
| REG3V3 (Pin 9) | 3.3 V regulated output | Supplies MCU core, digital peripherals, and ADC reference; delivers up to 70 mA with ±3% regulation and built-in short-circuit/thermal protection. |
| REG12 (Pin 6) | 12 V linear regulator output | Provides gate driver bias; maintains 12 V ±0.6 V at 10 mA load with 200–400 mV dropout - sufficient for driving 10 nC gate charge MOSFETs at 20 kHz. |
| HSU/HSV/HSW (Pins 34/30/26) | High-side gate driver outputs | Drive upper MOSFET gates via bootstrap circuitry; feature interlocking logic to prevent simultaneous HS/LS activation - eliminates external dead-time circuitry. |
| LSU/LSV/LSW (Pins 37/33/29) | Low-side gate driver outputs | Directly drive lower MOSFET gates; synchronized with HS outputs via internal timing engine - ensures matched turn-on/off delays ≤20 ns. |
| OP1P/OP1N/OP1O (Pins 24/23/22) | Single op-amp interface | Configurable for shunt current sensing: non-inverting input (OP1P), inverting input (OP1N), output (OP1O) connects to ADC channel for real-time phase current feedback. |
| OCCOMP (Pin 25) | Overcurrent comparator input | Accepts amplified shunt voltage; comparator triggers immediate fault signal (OC_COMP_INT) when >255 mV - enables cycle-by-cycle current limiting without MCU intervention. |
| nSTBY (Pin 38) | Active-low standby control | Pulling low reduces total quiescent current to 880 µA (VM = 45 V), enabling ultra-low-power sleep mode for portable applications with intermittent motor use. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Motor Control SoC | Combines gate drivers, MCU, regulators, op-amp, and comparator in one package - reduces BOM count by ≥12 components vs. discrete solutions. |
| Hardware Fault Protection | Independent UVLO on VM, VREG12, VBOOT, and VDD plus thermal shutdown (130–150 °C) and overcurrent latching - eliminates need for external supervision ICs. |
| Optimized for Sensorless BLDC | Dedicated advanced-control timer with quadrature encoder interface and high-resolution PWM (up to 192 MHz counter) enables robust 6-step commutation without Hall sensors. |
| Robust Signal Conditioning | Single rail-to-rail op-amp (±7 mV offset, 10 MHz GBP) supports high-accuracy shunt-based current sensing with <1% gain error across -40 to +125 °C. |
| Secure Firmware Execution | Flash memory write/read protection and embedded bootloader (UART/I²C) enable secure firmware updates and IP protection for proprietary motor algorithms. |
Applications
| Power Tools | Portable Vacuum Cleaners |
|---|---|
|
Use Scenario: Cordless drill/driver with variable speed trigger and electronic brake. IC Role / Device Role / Timing Role: STSPIN32G0B2 acts as main motor controller - executing FOC for smooth torque delivery, managing gate drive timing, and monitoring phase currents via OP1/ADC. Use Value: Single-chip integration reduces PCB area by 40% vs. multi-chip designs while enabling <50 ms brake response time through hardware-triggered overcurrent shutdown. |
Use Scenario: Handheld vacuum with brushless motor, battery gauge, and thermal management. IC Role / Device Role / Timing Role: STSPIN32G0B2 serves as motor controller and system manager - regulating 3.3 V/12 V rails, measuring motor temperature via ADC, and controlling fan speed via PWM. Use Value: Integrated 12 V LDO powers motor gate drivers directly, eliminating external LDO and reducing no-load power consumption to 2.6 mA at 45 V VM. |
| E-Bikes | Industrial Pumps |
|
Use Scenario: Mid-drive e-bike motor controller with torque sensing and pedal assist. IC Role / Device Role / Timing Role: STSPIN32G0B2 performs sensorless FOC using back-EMF detection, processes torque sensor signals via ADC, and manages regenerative braking via synchronous rectification. Use Value: 2.5 Msps ADC captures rapid current changes during hill-climbing, enabling real-time torque ripple suppression below 3% THD. |
Use Scenario: 24 V DC brushless pump for HVAC or fluid transfer with pressure feedback. IC Role / Device Role / Timing Role: STSPIN32G0B2 implements closed-loop speed control - reading pressure sensor via ADC, computing PID, and adjusting PWM duty cycle with <10 µs jitter. Use Value: Embedded 64 MHz Cortex-M0+ executes PID loop in <2 µs, achieving ±0.5% speed regulation accuracy across 10–100% load range. |
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 |
|---|---|---|---|
| STSPIN32G0B1 | Includes two op-amps (OP1 + OP2) and additional GPIOs (PB8/PB9/PC15), but same MCU, gate drivers, and regulators. | Better suited for dual-shunt current sensing or auxiliary signal conditioning; requires PCB redesign due to different pinout (e.g., PC15-OSC32_OUT present). | Select B1 when dual-phase current measurement or extra timing inputs (e.g., encoder A/B) are required; B2 suffices for single-shunt FOC. |
| STSPIN32F0 | Uses older STM32F031 MCU (Cortex-M0, 48 MHz, 32 kB flash), no integrated op-amp, and separate 3.3 V LDO instead of buck converter. | Lacks analog signal chain integration - requires external op-amp and voltage regulator, increasing BOM and layout complexity. | Choose STSPIN32F0 only for legacy designs or cost-sensitive applications where 64 kB flash and integrated buck are unnecessary. |
Compared with STSPIN32G0B1, the B2 offers reduced analog resources but identical motor control capability and smaller footprint; versus STSPIN32F0, it delivers higher processing headroom, integrated power conversion, and hardware-level current protection - making it optimal for next-generation portable BLDC systems requiring compactness and functional safety.
Availability
STSPIN32G0B2 is available at Aetrix Electronics and suitable for battery-powered power tools, portable vacuum cleaners, e-bikes, and industrial pumps requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for STSPIN32G0B2 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STSPIN32G0 series belongs to ST's motion control product line, engineered specifically to simplify brushless motor drive design by integrating gate drivers, MCU, regulators, and analog signal conditioning into a single package for cost-sensitive, space-constrained applications.
FAQ
What is the maximum motor power supported by STSPIN32G0B2?
The STSPIN32G0B2 supports motors up to ~500 W continuous output when paired with appropriately rated external MOSFETs (e.g., 60 V/30 A devices), based on its 600 mA gate drive capability, thermal limit of 130–150 °C junction temperature, and 45 V VM max rating. Actual power depends on heatsinking, switching frequency, and MOSFET RDS(on).
Does STSPIN32G0B2 support Hall-effect sensor commutation?
Yes - the embedded STM32G031x8 MCU includes a quadrature encoder interface and timer peripherals capable of decoding Hall sensor signals (U/V/W) for six-step commutation. The device also supports sensorless operation via back-EMF detection using its ADC and comparator.
How does the single op-amp configuration affect current sensing topology?
The STSPIN32G0B2's single op-amp (OP1) supports either single-shunt or high-side sensing configurations. For three-phase current reconstruction, it typically measures current in the DC-link shunt during PWM off-time, then computes phase currents mathematically - reducing component count versus three-shunt methods.
Is the embedded bootloader accessible without external debug hardware?
Yes - the STSPIN32G0B2 includes an embedded bootloader accessible via UART or I²C interfaces, allowing firmware updates in-system without SWD debugger. Bootloader entry is controlled by BOOT0 pin (PA14) and supports flash memory and option byte programming with read/write protection enabled.
STSPIN32G0B2 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:
- -
STSPIN32G0B2 FAQ
1.How can I place an order for STSPIN32G0B2 through Aetrix?
Please submit a Request for Quotation (RFQ) for STSPIN32G0B2 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 STSPIN32G0B2 reliable?
The price and inventory of STSPIN32G0B2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STSPIN32G0B2 is usually 5 days.
3.What payment methods are accepted for STSPIN32G0B2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STSPIN32G0B2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STSPIN32G0B2?
STSPIN32G0B2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STSPIN32G0B2 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 STSPIN32G0B2?
For technical support, including STSPIN32G0B2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STSPIN32G0B2 requirements.
6.How does Aetrix verify that STSPIN32G0B2 is sourced from the original manufacturer or authorized distributors?
All STSPIN32G0B2 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 STSPIN32G0B2 meets industry standards.
7.What is the process for return or replacement of STSPIN32G0B2?
All STSPIN32G0B2 units undergo pre-shipment inspection (PSI). If there is an issue with STSPIN32G0B2, 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 STSPIN32G0B2 part is unused and in its original packaging.
Return procedure for STSPIN32G0B2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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