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

STMicroelectronics STSPIN32F0252TR

Name: STSPIN32F0252TR
Brand: STMicroelectronics
SKU: STSPIN32F0252TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STSPIN32F0252TR

Manufacturer:: STMicroelectronics

Category:: Application Specific Microcontrollers

Package:: 64-TQFP Exposed Pad

Datasheet:: STSPIN32F0252TR.pdf

Description:: 250 V THREE-PHASE CONTROLLER WIT

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STSPIN32F0252TR from STMicroelectronics is a 250 V system-in-package (SiP) integrating a 32-bit ARM® Cortex®-M0 MCU and triple half-bridge gate driver for three-phase BLDC motor control. It delivers 1 A source / 0.85 A sink gate drive current, supports FOC and sensorless 6-step algorithms, and operates across –40 to +125 °C in TQFP-64 package. Used in corded power tools and HVAC compressor drives.

For engineers reviewing the STSPIN32F0252TR datasheet, STSPIN32F0252TR pinout, STSPIN32F0252TR application, or STSPIN32F0252TR equivalent, key selection criteria include integrated bootstrap diodes, matched propagation delay (<30 ns), smart shutdown (SmartSD) comparator response time (350–500 ns), UVLO/interlocking/deadtime protection, and 21 GPIO with 5 V tolerance.

Technical Context

The device embeds an STM32F031x6x7 MCU core running at up to 48 MHz with 32 kB Flash and 4 kB SRAM, enabling real-time execution of field-oriented control (FOC) and sensorless commutation. Its gate driver section features independent high-side (HVG1–3) and low-side (LVG1–3) outputs with integrated bootstrap diodes and programmable deadtime (200–400 ns).

Protection architecture includes dual UVLO monitoring (VCC and VBO), interlocking logic preventing shoot-through, and a dedicated comparator with 410–510 mV internal reference feeding an open-drain SmartSD output. All six driver channels exhibit matched turn-on/off propagation delay (≤30 ns) and dV/dt immunity of ±50 V/ns.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Output Voltage	250 V DC - enables direct driving of N-channel MOSFETs/IGBTs in industrial 230 VAC line-fed systems
Gate Drive Current	1 A source / 0.85 A sink - sufficient to rapidly charge/discharge gate capacitance of 600 V MOSFETs up to 100 nC Qg
MCU Core	ARM Cortex-M0 @ 48 MHz - provides deterministic timing for real-time motor control loops with <1 µs interrupt latency
ADC Resolution	12-bit, 10-channel - supports simultaneous current sensing across all three phases using internal sample-and-hold
Deadtime Range	200–400 ns - configurable via external timing or internal logic to prevent cross-conduction in high-frequency PWM (≤800 kHz)
Comparator Propagation Delay	350–500 ns - ensures overcurrent detection and SmartSD activation within one switching cycle at 800 kHz
Operating Temperature	–40 to +125 °C - qualified for under-hood automotive auxiliary pumps and industrial compressor enclosures

Pinout & Package

Package: TQFP-64, 10 × 10 mm, 0.5 mm pitch, creepage ≥1.2 mm. Exposed EPAD internally connected to SGND for thermal and EMI performance.

Pin/Terminal	Circuit Role	Design Meaning
PA8–PA10	HIN1–HIN3	Active-low high-side input signals - directly interface with MCU PWM outputs; FTf-tolerant for 5 V logic compatibility
PB13–PB15	LIN1–LIN3	Active-low low-side input signals - synchronized with HINs; enable complementary PWM generation without external logic
HVG1–HVG3 / LVG1–LVG3	Driver Outputs	Three-phase gate drive outputs - each pair (HVG/LVG) drives one half-bridge; R_DS(on) ≤7.6 Ω ensures low conduction loss at 1 A
BOOT1–BOOT3	Bootstrap Supplies	Floating voltage rails for high-side drivers - integrated diodes eliminate external bootstrap diode count and layout complexity
FAULT / OD	Open-Drain Status Outputs	FAULT indicates UVLO or SmartSD event; OD provides comparator output - both support wired-OR fault bus implementation
EN	Enable Input	Active-high global shutdown - forces all LVG/HVG outputs low with low-impedance state, ensuring safe power stage disable

Key Features

Feature	Design Value
Matched propagation delay	≤30 ns channel-to-channel skew - preserves PWM waveform integrity and prevents torque ripple in FOC applications
Integrated bootstrap diodes	RD_boot = 215–250 Ω - reduces BOM count by two diodes per phase and improves thermal coupling vs discrete solutions
Smart shutdown (SmartSD)	V_SSDl = 0.56–0.75 V, V_SSDh = 3.5–4.3 V - enables fast overcurrent cutoff with hysteresis to avoid false triggering during transient load spikes
Interlocking + deadtime	Hardware-enforced DT ≥200 ns - eliminates need for software-based deadtime insertion and guarantees shoot-through prevention
5 V-tolerant GPIO	21 I/O pins with FT/FTf structure - allows direct connection to legacy 5 V controllers or level-shifter-free interfacing with Hall sensors

Applications

Power Tools Motor Control

Air Conditioning Compressor Drive

Use Scenario: Corded angle grinders and drills requiring high-torque startup and variable speed regulation under load.

IC Role / Device Role / Timing Role: Integrated SiP performs real-time FOC computation, generates synchronized 3-phase PWM, and drives external 600 V MOSFETs with matched timing.

Use Value: Eliminates separate MCU, gate driver, and bootstrap components - reduces PCB area by >40% and enables compact 4-layer tool PCBs.

Use Scenario: Inverter-driven scroll compressors in residential split-system AC units operating at 20–100 Hz.

IC Role / Device Role / Timing Role: Executes sensorless 6-step commutation with ADC-sampled back-EMF zero-crossing detection and manages thermal derating via on-chip temperature monitoring.

Use Value: Integrated UVLO, SmartSD, and interlocking ensure reliable operation during grid voltage sags and refrigerant pressure surges without external protection ICs.

Industrial Pump Speed Control

Refrigerator Compressor Management

Use Scenario: Constant-pressure centrifugal pumps in HVAC hydronic systems requiring precise flow modulation.

IC Role / Device Role / Timing Role: Runs closed-loop PID speed control using encoder feedback or sensorless estimation; uses 6 timers for PWM generation and capture.

Use Value: 12-bit ADC with 10 channels enables simultaneous current, voltage, and temperature sampling - critical for efficiency optimization and predictive maintenance.

Use Scenario: Variable-speed compressors in premium frost-free refrigerators with noise-sensitive acoustic requirements.

IC Role / Device Role / Timing Role: Implements low-noise sinusoidal drive with optimized deadtime and harmonic suppression via SWD-debuggable firmware.

Use Value: Matched propagation delay and dV/dt immunity (±50 V/ns) suppress EMI emissions below CISPR-14 limits - avoids costly external filtering.

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
STSPIN32F0A	Higher voltage rating (600 V), no embedded MCU - requires external microcontroller for algorithm execution	Suitable for designs needing higher bus voltage headroom but retaining existing MCU architecture	Select when upgrading from 250 V systems to 400 V DC-link while reusing legacy firmware stack
MP6550GQ-Z	Standalone 3-phase gate driver (no MCU), 200 V max, 1.2 A peak drive, no integrated comparator or SmartSD	Requires external MCU and overcurrent protection circuitry - increases component count and board space	Choose only if design mandates separation of control and power stages for functional safety partitioning

Compared with STSPIN32F0252TR, STSPIN32F0A trades embedded intelligence for higher voltage robustness, while MP6550GQ-Z offers simpler gate drive but demands full external control infrastructure - making STSPIN32F0252TR optimal for cost-sensitive, space-constrained, self-contained motor modules.

Availability

STSPIN32F0252TR is available at Aetrix Electronics and suitable for corded power tools, HVAC compressor drives, and industrial pump control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STSPIN32F0252TR 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 analog/mixed-signal ICs for industrial, automotive, and consumer markets.

The STSPIN32F025x product line targets highly integrated motor control solutions - combining MCU compute, gate drive, protection, and diagnostics into single-package SiPs to accelerate development of efficient, compact, and reliable BLDC systems.

FAQ

What is the maximum switching frequency supported by STSPIN32F0252TR?

The device supports up to 800 kHz switching frequency, limited by power dissipation and gate drive capability. At 1 A source/sink current and typical MOSFET gate charge, practical operation is 20–100 kHz for thermal stability. Higher frequencies require careful PCB layout, heatsinking, and reduced duty-cycle margins to maintain junction temperature ≤125 °C.

Does STSPIN32F0252TR require external bootstrap diodes?

No. The device integrates three high-voltage bootstrap diodes (RD_boot = 215–250 Ω) directly into the SiP. This eliminates external diodes, reduces layout sensitivity, and improves thermal coupling between bootstrap path and driver die - confirmed in DS13048 Rev 4 Section 6.1.1 and Table 7.

How does the SmartSD function differ from standard overcurrent protection?

SmartSD uses an internal comparator with 410–510 mV reference and 40–70 mV hysteresis to monitor current-sense voltage. It triggers within 350–500 ns and asserts OD/FAULT outputs while forcing all gate drivers low. Unlike simple latch-off schemes, SmartSD supports automatic restart after V_SSDl threshold recovery - enabling graceful recovery from transient overload events.

Can STSPIN32F0252TR operate without an external crystal?

Yes. The embedded STM32F031 MCU supports internal HSI oscillator (8 MHz ±1%) and PLL to achieve 48 MHz system clock. External crystal (HSE) is optional and used only when <1% frequency accuracy is required for communication interfaces like UART or precise timing-critical control loops.

STSPIN32F0252TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STSPIN32F025x

Package/Case:: 64-TQFP Exposed Pad

Packaging:: Tape & Reel (TR)

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:: 64-TQFP-EP (10x10)

STSPIN32F0252TR FAQ

1.How can I place an order for STSPIN32F0252TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STSPIN32F0252TR 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 STSPIN32F0252TR reliable?

The price and inventory of STSPIN32F0252TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STSPIN32F0252TR is usually 5 days.

3.What payment methods are accepted for STSPIN32F0252TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STSPIN32F0252TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STSPIN32F0252TR?

STSPIN32F0252TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STSPIN32F0252TR 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 STSPIN32F0252TR?

For technical support, including STSPIN32F0252TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STSPIN32F0252TR requirements.

6.How does Aetrix verify that STSPIN32F0252TR is sourced from the original manufacturer or authorized distributors?

All STSPIN32F0252TR 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 STSPIN32F0252TR meets industry standards.

7.What is the process for return or replacement of STSPIN32F0252TR?

All STSPIN32F0252TR units undergo pre-shipment inspection (PSI). If there is an issue with STSPIN32F0252TR, 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 STSPIN32F0252TR part is unused and in its original packaging.

Return procedure for STSPIN32F0252TR:

1.Submit a request within 90 days.

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

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