Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics STSPIN32F0251Q

Name: STSPIN32F0251Q
Brand: STMicroelectronics
SKU: STSPIN32F0251Q
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STSPIN32F0251Q

Manufacturer:: STMicroelectronics

Category:: Application Specific Microcontrollers

Package:: 72-VFQFN Exposed Pad

Datasheet:: STSPIN32F0251Q.pdf

Description:: 250 V THREE-PHASE CONTROLLER WIT

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,273

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

STSPIN32F0251Q from STMicroelectronics is an integrated 250 V three-phase BLDC motor controller System-in-Package (SiP) combining a 32-bit ARM® Cortex®-M0 MCU (STM32F031) with a triple half-bridge gate driver, 200/350 mA source/sink drive capability, integrated bootstrap diodes, and comparator-based Smart Shutdown (smartSD) protection. It targets high-voltage motor control in corded power tools and industrial compressors.

For engineers reviewing the STSPIN32F0251Q datasheet, STSPIN32F0251Q pinout, STSPIN32F0251Q application, or STSPIN32F0251Q equivalent, key selection considerations include its 48 MHz MCU clock, 12-bit ADC with 10 channels, matched propagation delays (<30 ns), integrated UVLO/interlocking/deadtime, and TQFP 64L 0.5 mm pitch package with 1.2 mm creepage.

Technical Context

The device implements a tightly coupled SiP architecture where the STM32F031 MCU executes FOC or 6-step sensorless algorithms while directly controlling six gate driver inputs (HIN1–3, LIN1–3) via GPIOs PB12–PB15 and PA8–PA10. All high-side outputs (HVG1–3) are bootstrapped with on-chip diodes, eliminating external diodes and reducing BOM count.

Protection logic integrates hardware-level interlocking, programmable deadtime (200–400 ns), and a dedicated comparator with 410–510 mV internal reference feeding an open-drain OD output and FAULT signal-enabling sub-500 ns overcurrent response independent of MCU execution. The EN pin enables synchronous shutdown of all drivers with low-impedance sink.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Output Voltage	250 V DC - supports N-channel MOSFET/IGBT bridges up to HVAC compressor and power tool voltage rails
Gate Drive Current	200 mA source / 350 mA sink - sufficient for driving 1–2 A I_D MOSFETs at ≤800 kHz switching
MCU Core	ARM Cortex-M0 @ 48 MHz - delivers real-time motor control with 32 kB Flash + 4 kB SRAM (HW parity)
ADC Resolution	12-bit, 10-channel - enables simultaneous phase current and bus voltage sampling for FOC current loops
Propagation Delay Match	<30 ns MT - ensures symmetrical high/low-side timing across all three phases, preventing shoot-through distortion
Comparator Response	350–500 ns t_CIN-F - provides hardware-fast overcurrent detection before MCU intervention
Operating Temp	−40 °C to +125 °C - qualified for industrial and appliance environments without derating

Pinout & Package

Package: TQFP-64 (10 × 10 mm, 0.5 mm pitch, 1.2 mm creepage). Exposed EPAD internally connected to SGND.

Pin/Terminal	Circuit Role	Design Meaning
PA8–PA10	HIN1–HIN3	Active-low high-side gate inputs - synchronized with LINx for half-bridge control; FTf-tolerant
PB13–PB15	LIN1–LIN3	Active-low low-side gate inputs - internally pulled down (60 kΩ); enable direct PWM or 6-step logic
PB12	FAULT	Open-drain fault indicator - asserts low on VCC UVLO or smartSD trigger; requires external pull-up
OD	Comparator Output	Open-drain analog comparator output - used for fast overcurrent latching or MCU interrupt
CIN	Comparator Input+	Analog input for current-sense signal - referenced to internal 460 mV VREF; 40–70 mV hysteresis
EN	Enable Input	Active-high global driver enable - forces all LVG/HVG low when deasserted; overrides all inputs

Key Features

Feature	Design Value
Integrated Bootstrap Diodes	Eliminates 3 external diodes per phase - reduces PCB area and improves reliability in high-vibration tools
Hardware Interlocking + Deadtime	Prevents shoot-through even with overlapping HIN/LIN edges - no firmware dependency for safe commutation
Smart Shutdown (smartSD)	Comparator-triggered shutdown with 3.5–4.3 V restart threshold - enables self-resetting overcurrent recovery
Matched Propagation Delays	≤30 ns max timing skew between high/low-side paths - preserves sinusoidal PWM fidelity in FOC
5 V-Tolerant GPIOs	21 FT/FTf I/Os including PA8–PA10 and PB13–PB15 - simplifies interface with 5 V logic or Hall sensors

Applications

Power Tools Motor Control

Air Conditioning Compressor Drive

Use Scenario: Corded angle grinders and drills requiring high-torque, variable-speed BLDC operation up to 250 V DC bus.

IC Role / Device Role / Timing Role: Single-chip motor controller executing 6-step commutation with real-time current limiting and thermal monitoring.

Use Value: Reduces bill-of-material by integrating gate drivers, MCU, comparator, and bootstrap diodes - enabling compact, cost-sensitive tool PCBs.

Use Scenario: Inverter-driven HVAC compressors operating in harsh ambient conditions (−25 °C to +65 °C).

IC Role / Device Role / Timing Role: High-voltage motor controller managing field-oriented control (FOC) with precise 12-bit ADC sampling and matched PWM timing.

Use Value: Extended −40 °C to +125 °C junction rating and 1.2 mm creepage ensure long-term reliability in sealed compressor modules.

Industrial Pump Driver

Refrigerator Compressor Module

Use Scenario: Constant-pressure water pumps in commercial building automation systems with CAN or Modbus supervision.

IC Role / Device Role / Timing Role: Embedded motor controller providing closed-loop speed regulation, fault logging, and serial communication (USART/SPI).

Use Value: On-chip SWD debug interface and 32 kB Flash support field firmware updates without additional programming hardware.

Use Scenario: Hermetic refrigerator compressors requiring EMI-robust, low-noise motor drive in confined cabinet space.

IC Role / Device Role / Timing Role: Integrated SiP delivering low EMI commutation via matched delays, deadtime control, and dV/dt immunity (±50 V/ns).

Use Value: Integrated UVLO, interlocking, and smartSD eliminate discrete protection ICs - improving system-level safety certification pass rate.

Equivalent & Alternatives

The following parts are listed as comparable options for similar three-phase BLDC controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSPIN32F0B1	Same SiP architecture but with 600 V rated gate driver and higher 600 mA drive strength; lacks integrated comparator	Targets higher-voltage PMSM drives (e.g., EV auxiliary pumps); requires external overcurrent sensing	Select when >250 V bus or >350 mA gate current needed; not drop-in due to different voltage rating and missing smartSD
MP6550GQ-Z	Standalone 250 V 3-phase gate driver (no MCU); 350 mA source/sink; no embedded processor or ADC	Used with external MCU (e.g., STM32G4) for flexible algorithm implementation; no FOC offload capability	Select when full custom motor control firmware is required or when separating MCU and gate driver improves thermal management

Compared with STSPIN32F0251Q, STSPIN32F0B1 extends voltage headroom but removes smartSD, while MP6550GQ-Z decouples processing and driving - making STSPIN32F0251Q optimal for cost-constrained, integrated BLDC designs needing hardware-fast protection and MCU co-location.

Availability

STSPIN32F0251Q is available at Aetrix Electronics and suitable for corded power tools, HVAC compressors, industrial pumps, and home appliance motor control requiring stable component supply and long-lifecycle support.

Supply support for STSPIN32F0251Q 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, and analog/mixed-signal devices for industrial, automotive, and consumer markets.

The STSPIN32F025x product line targets high-integration motor control SiPs - merging robust gate drivers with resource-efficient MCUs to simplify inverter design for appliances and industrial equipment.

FAQ

What is the maximum switching frequency supported by STSPIN32F0251Q?

The device supports up to 800 kHz switching frequency under recommended operating conditions. Actual achievable frequency depends on power dissipation, gate charge of external MOSFETs, and thermal management. At 48 MHz MCU clock, the timer resolution allows precise PWM generation for FOC or trapezoidal control without jitter.

Does STSPIN32F0251Q require external bootstrap diodes?

No. The device integrates three high-voltage bootstrap diodes (one per phase) within the SiP, eliminating the need for external diodes and reducing PCB footprint and component count. These diodes support bootstrapped high-side drive up to 270 V BOOT voltage with typical on-resistance of 215–250 Ω.

How does the Smart Shutdown (smartSD) function operate?

smartSD uses an internal comparator comparing CIN voltage against a 460 mV reference. When CIN exceeds the 3.5–4.3 V restart threshold, the OD output pulls low and disables all gate drivers. Recovery occurs only after CIN falls below 0.56–0.75 V (unlatch threshold), ensuring sustained fault clearance before re-enabling.

Can STSPIN32F0251Q drive IGBTs as well as MOSFETs?

Yes. Its gate driver is designed for N-channel power switches, supporting both MOSFETs and IGBTs. With 200/350 mA peak drive current and 24–46 Ω R_DS(on) (source), it can efficiently drive IGBTs requiring moderate gate charge (e.g., <100 nC) in 250 V industrial motor applications.

STSPIN32F0251Q Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STSPIN32F025x

Package/Case:: 72-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Applications:: Home & Industrial

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:: 21

Voltage - Supply:: 9V ~ 20V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 72-QFN (10x10)

STSPIN32F0251Q FAQ

1.How can I place an order for STSPIN32F0251Q through Aetrix?

Please submit a Request for Quotation (RFQ) for STSPIN32F0251Q 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 STSPIN32F0251Q reliable?

The price and inventory of STSPIN32F0251Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STSPIN32F0251Q is usually 5 days.

3.What payment methods are accepted for STSPIN32F0251Q?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STSPIN32F0251Q transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STSPIN32F0251Q?

STSPIN32F0251Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STSPIN32F0251Q 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 STSPIN32F0251Q?

For technical support, including STSPIN32F0251Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STSPIN32F0251Q requirements.

6.How does Aetrix verify that STSPIN32F0251Q is sourced from the original manufacturer or authorized distributors?

All STSPIN32F0251Q 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 STSPIN32F0251Q meets industry standards.

7.What is the process for return or replacement of STSPIN32F0251Q?

All STSPIN32F0251Q units undergo pre-shipment inspection (PSI). If there is an issue with STSPIN32F0251Q, 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 STSPIN32F0251Q part is unused and in its original packaging.

Return procedure for STSPIN32F0251Q:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…