STSPIN32FO STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics STSPIN32FO is an advanced BLDC motor controller integrating an embedded STM32 Arm Cortex-M0 MCU with a 3-phase gate driver in a compact QFN package. It supports sensorless or sensored field-oriented control (FOC) and includes gate drive outputs for external MOSFETs handling motor supply voltages up to 45 V. Available in stock with worldwide shipping for industrial and appliance motor drive designs.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 49
- Lifecycle
- ACTIVE
- Datasheet
- STSPIN32FO Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STSPIN32FO?
- Integrated STM32 Arm Cortex-M0 MCU running at 48 MHz with embedded Flash for running FOC motor control firmware without a separate host processor
- 3-phase gate driver outputs supporting external N-channel MOSFETs with motor supply voltages up to 45 V for medium-power BLDC drives
- Sensorless or Hall-sensor field-oriented control algorithm capability enabling high-efficiency torque control across wide speed ranges
- Compact QFN package integrating MCU and gate driver in a single chip to minimize BOM and PCB area for cost-sensitive motor drive designs
What is STSPIN32FO used for?
The STSPIN32FO is designed for compact BLDC motor drives in industrial fans, pumps, and power tools where integrating the STM32 MCU and 3-phase gate driver in a single QFN chip saves significant PCB area and BOM cost. It enables field-oriented control algorithms to run directly on the embedded 48 MHz Cortex-M0 core, eliminating the need for a separate host microcontroller in single-motor applications. The device is also suited to home appliance compressor drives, HVAC blowers, and e-bike auxiliary motors requiring efficient sensorless FOC from supply voltages between 6 V and 45 V.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the STSPIN32FO datasheet?
STSPIN32FO Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STSPIN32FO?
Compatible alternatives and drop-in replacements for STSPIN32FO:
Frequently Asked Questions
What MCU core and clock speed is embedded in STSPIN32FO, and what firmware can it run?
STSPIN32FO integrates an STM32 Arm Cortex-M0 core running at up to 48 MHz with embedded Flash and SRAM, enabling the device to execute ST's FOC SDK motor control libraries directly without an external host processor. This single-chip integration eliminates the separate microcontroller and communication link required in discrete gate driver solutions, reducing system complexity for drives in the 6 V to 45 V supply range.
Up to what motor supply voltage can STSPIN32FO drive external power MOSFETs?
The STSPIN32FO gate driver supports motor supply voltages up to 45 V, covering 12 V, 24 V, and 36 V BLDC motor systems commonly found in industrial fans, pumps, and power tools. The 3-phase gate drive outputs are designed for external N-channel MOSFETs, allowing designers to select transistors rated for the exact power level needed, scaling from a few watts up to several hundred watts of motor output power.
How does sensorless FOC in STSPIN32FO benefit BLDC fan and pump applications?
Sensorless field-oriented control in STSPIN32FO estimates rotor position from back-EMF signals measured on the 3-phase winding, eliminating the need for Hall-effect sensors and their associated wiring. For fan and pump OEMs this reduces harness cost and connector count by 3 wires per motor, and the FOC algorithm provides smooth low-speed torque and efficient operation across the full speed range from startup to maximum RPM, improving energy efficiency by up to 20% compared to trapezoidal commutation in the same application.
How does the QFN package of STSPIN32FO reduce total system cost compared to a discrete MCU plus gate driver solution?
By integrating the STM32 Cortex-M0 MCU and 3-phase gate driver in a single QFN package, STSPIN32FO replaces at least 2 separate ICs plus their decoupling and interface components, typically saving 5 to 10 passive components per design. The reduced PCB area, fewer solder joints, and simplified BOM lower both assembly cost and the risk of inter-chip communication faults, making it a cost-effective choice for high-volume consumer appliance and industrial motor drive designs.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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