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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

STMicroelectronics STSPIN32F0

Name: STSPIN32F0
Brand: STMicroelectronics
SKU: STSPIN32F0
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STSPIN32F0

Manufacturer:: STMicroelectronics

Category:: Application Specific Microcontrollers

Package:: 48-VFQFN Exposed Pad

Datasheet:: STSPIN32F0.pdf

Description:: IC BLDC CTLR STM32 48VFQFPN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STSPIN32F0 from STMicroelectronics is an integrated System-in-Package BLDC motor controller embedding a 32-bit ARM® Cortex®-M0 MCU (STM32F031C6-7), three-phase 600 mA gate drivers, 3.3 V DC/DC buck regulator, 12 V LDO, four rail-to-rail op-amps, and a programmable overcurrent comparator - designed for compact, high-efficiency motor drives in portable and industrial appliances.

For engineers reviewing the STSPIN32F0 datasheet, STSPIN32F0 pinout, STSPIN32F0 application, or STSPIN32F0 equivalent, key selection criteria include its embedded MCU's 48 MHz operation and Flash protection, dual-regulator power architecture (3.3 V buck + 12 V LDO), Hall-sensor decoding via 3FG output, and thermal/UVLO protections across VM, VDD, VREG12, and VBOOTx rails.

Technical Context

The device integrates a triple half-bridge gate driver with cross-conduction prevention and integrated bootstrap diodes, enabling direct MOSFET/IGBT control up to 45 V bus voltage. Its STM32F031C6-7 MCU core supports field-oriented control (FOC) and 6-step sensorless algorithms, with dedicated peripherals including an advanced-control timer (TIM1), 12-bit ADC (9 channels), and SWD debug interface.

Signal conditioning is handled by four independent op-amps (±0.1 V common-mode range, 10–18 MHz GBP), while overcurrent protection uses a comparator with three selectable thresholds (90–545 mV) set via PF6/PF7 pins. Standby mode reduces total current to ≤1.1 mA at 45 V VM.

Key Specifications

Parameter	Value and Actual Design Meaning
MCU Core	ARM Cortex-M0 @ 48 MHz - enables real-time FOC execution and closed-loop speed control without external processor
Gate Driver Sink/Source	600 mA - sufficient to drive standard 600 V MOSFETs in 3-phase BLDC inverters up to ~300 W
DC/DC Output	3.3 V / 70 mA - powers MCU core, analog circuitry, and external logic; includes soft-start (2.5–7.5 ms) and overcurrent protection
LDO Output	12 V / 20–40 mA - supplies gate drivers and bootstrap circuits; dropout ≤400 mV ensures stability down to VM = 8 V
ADC Resolution & Channels	12-bit / 9-channel - supports simultaneous sampling of phase currents, temperature, and supply voltages for precise commutation
Op-Amp GBP	10–18 MHz - enables fast shunt-amplifier bandwidth for accurate current sensing up to 100 kHz switching
Operating Temp Range	−40 to +125 °C - qualified for automotive-grade ambient conditions in fans, power tools, and drones

Pinout & Package

The STSPIN32F0 is housed in a VFQFPN48 7 × 7 mm package with exposed thermal pad (EPAD), optimized for motor-drive thermal dissipation and PCB layout density.

Pin/Terminal	Circuit Role	Design Meaning
VM (Pin 8)	Main power input	Bus voltage input (8–45 V); feeds DC/DC, LDO, and gate drivers - UVLO threshold 7.4 V (typ)
VDDA (Pin 10)	Analog supply	3.3 V analog rail for ADC, op-amps, and comparators - separate from digital VDD to reduce noise coupling
HSU/HSV/HSW (Pins 33/29/25)	High-side gate outputs	Drive upper MOSFET gates via bootstrap circuitry; interlocked to prevent shoot-through
LSU/LSV/LSW (Pins 36/32/28)	Low-side gate outputs	Direct low-side gate drive with 10–40 ns propagation delay; matched timing (≤20 ns skew)
3FG_PA7 (Pin 18)	Hall decoder output	Open-drain output providing decoded 3-phase Hall state (U/V/W) - simplifies sensor-based commutation logic
PA13_SWD_IO / PA14_SWD_CLK (Pins 37/38)	Debug interface	SWD pins routed through analog IC block - enables in-circuit debugging without external headers
OC_Comp (Pin 24)	Overcurrent sense input	Comparator input for shunt-based current monitoring; threshold programmable via PF6/PF7
VBOOTU/VBOOTV/VBOOTW (Pins 35/31/27)	Bootstrap supplies	Floating 12 V rails for high-side gate drive; internal diodes eliminate external bootstrap diodes

Key Features

Feature	Design Value
Integrated MCU with Flash protection	32 kB Flash + 4 kB SRAM with write/readout option bytes - prevents firmware tampering in production devices
Dual-regulator power system	3.3 V DC/DC (80% efficiency @ 8 V) + 12 V LDO - eliminates need for external regulators and reduces BOM count
Rail-to-rail op-amps	4× op-amps with 10–18 MHz GBP and ±0.1 V input CMR - supports precision shunt amplification and Hall signal conditioning
Programmable overcurrent threshold	Three selectable comparator thresholds (90/255/505 mV) via PF6/PF7 - enables dynamic fault sensitivity adjustment per load condition
Thermal and UVLO protection	140 °C thermal shutdown (30 °C hysteresis) + independent UVLO on VM, VDD, VREG12, VBOOTx - ensures robust operation under fault conditions

Applications

Kitchen Robot Drive

Portable Vacuum Cleaner

Use Scenario: High-torque, variable-speed BLDC motor driving planetary gear train in compact countertop food processors.

IC Role / Device Role / Timing Role: Full-system motor controller executing 6-step commutation with Hall feedback; provides real-time current limiting and thermal management.

Use Value: Integrated 12 V LDO powers gate drivers directly, while 3.3 V DC/DC supplies MCU and sensors - eliminating two external regulators and reducing board area by >35%.

Use Scenario: Battery-powered vacuum with brushless suction motor requiring efficient power conversion and low-noise commutation.

IC Role / Device Role / Timing Role: Central motor controller managing battery-to-motor power path, ADC-based current loop, and PWM timing via TIM1 advanced-control timer.

Use Value: 48 MHz MCU core executes sensorless FOC at 20 kHz switching frequency; standby current <1.1 mA extends runtime between charges.

Drone Propulsion Module

Industrial Fan Controller

Use Scenario: Compact ESC for quadcopter motors where size, weight, and thermal performance are critical.

IC Role / Device Role / Timing Role: Embedded BLDC controller performing real-time rotor position estimation and PWM generation with <20 ns gate timing skew.

Use Value: VFQFPN48 package with EPAD enables direct heatsinking; −40 to +125 °C rating supports sustained operation in enclosed drone frames.

Use Scenario: HVAC fan module requiring reliable speed regulation, overtemperature response, and EMI-robust analog sensing.

IC Role / Device Role / Timing Role: Motor controller interfacing with external temperature sensor and pressure transducer via ADC and op-amps; implements closed-loop PID speed control.

Use Value: Four integrated op-amps condition shunt and Hall signals on-chip; comparator with deglitching (50 ns) rejects EMI-induced false trips.

Equivalent & Alternatives

The following parts are listed as comparable options for similar BLDC motor controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSPIN32G4	Upgraded MCU (Cortex-M4F @ 170 MHz), higher gate drive (1 A), integrated 3.3 V LDO instead of buck converter	Better suited for FOC-intensive applications (e.g., servo-grade positioning); lacks DC/DC efficiency advantage at low VM	Select when higher computational throughput or enhanced analog performance (e.g., 16-bit ADC) is required
MP6532	Standalone 3-phase gate driver (no MCU), 1.2 A sink/source, no integrated regulators or op-amps	Requires external microcontroller and power management - increases design complexity but offers greater flexibility in algorithm choice	Select when using custom motor control firmware or needing higher gate current than 600 mA

Compared with STSPIN32G4, the STSPIN32F0 trades raw processing power for higher integration density and DC/DC efficiency at low bus voltages; versus MP6532, it delivers complete system-on-package functionality at the cost of configurability - making it optimal for cost-sensitive, space-constrained BLDC drives where rapid time-to-market matters.

Availability

STSPIN32F0 is available at Aetrix Electronics and suitable for kitchen robots, portable vacuum cleaners, and industrial fans requiring stable component supply, long-lifecycle support, and production-ready motor control integration.

Supply support for STSPIN32F0 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 STSPIN family targets highly integrated, application-specific motor drivers - designed to reduce system cost and design effort by embedding gate drivers, protection logic, and intelligent control in single packages.

FAQ

What is the maximum supported bus voltage for STSPIN32F0?

The absolute maximum VM rating is 48 V, with recommended operating range from 8 V to 45 V. The UVLO turn-on threshold is 7.4 V (typical), ensuring reliable startup even under weak battery conditions. Operation above 45 V risks permanent damage per Table 1 in DocID029806 Rev 2.

Does STSPIN32F0 require external bootstrap diodes?

No - the device integrates bootstrap diodes for all three phases (U/V/W), eliminating the need for external components. This is confirmed in Section 6.5 ("Gate drivers") and Table 5 (RDS_diode = 120–240 Ω), reducing bill-of-materials and PCB layout complexity.

Can the embedded STM32F031C6 be programmed independently of the motor control firmware?

Yes - the MCU is fully accessible via SWD (PA13/PA14) and supports standard STM32 programming tools (STM32CubeIDE, OpenOCD). Its Flash memory includes option bytes for read/write protection, allowing secure firmware deployment while retaining full debug capability during development.

How does the 3FG output function in Hall-based commutation?

The 3FG_PA7 pin provides an open-drain decoded output representing the logical combination of three Hall sensor inputs (U/V/W), delivering six distinct states corresponding to BLDC electrical sector positions. It operates synchronously with MCU clock and supports high-impedance disable via PA12, enabling seamless transition between Hall and sensorless modes.

STSPIN32F0 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STSPIN32F0

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Applications:: BLDC Controller

Core Processor:: ARM® Cortex®-M0

Program Memory Type:: FLASH (32kB)

Controller Series:: STM32F031x6x7

RAM Size:: 4K x 8

Interface:: I2C, SPI, UART/USART

Number of I/O:: 16

Voltage - Supply:: 8V ~ 45V

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-VFQFPN (7x7)

STSPIN32F0 FAQ

1.How can I place an order for STSPIN32F0 through Aetrix?

Please submit a Request for Quotation (RFQ) for STSPIN32F0 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 STSPIN32F0 reliable?

The price and inventory of STSPIN32F0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STSPIN32F0 is usually 5 days.

3.What payment methods are accepted for STSPIN32F0?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STSPIN32F0 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STSPIN32F0?

STSPIN32F0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STSPIN32F0 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 STSPIN32F0?

For technical support, including STSPIN32F0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STSPIN32F0 requirements.

6.How does Aetrix verify that STSPIN32F0 is sourced from the original manufacturer or authorized distributors?

All STSPIN32F0 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 STSPIN32F0 meets industry standards.

7.What is the process for return or replacement of STSPIN32F0?

All STSPIN32F0 units undergo pre-shipment inspection (PSI). If there is an issue with STSPIN32F0, 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 STSPIN32F0 part is unused and in its original packaging.

Return procedure for STSPIN32F0:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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