ST公司的STSPIN32F0A是SIP三相BLDC馬達驅動器，嵌入了三個可驅動功率MOSFET的半橋柵極驅動器，驅動電流600mA，時鐘頻率高達48MHz的32位ARM? Cortex?-M0核，4KB SRAM和32KB閃存，工作電壓6.7V-45V，內部的DC/DC轉換器提供3.3V用來給MCU和外部元件供電，而LDO線性穩壓器用來給柵極驅動器供電，主要用在智能制造設備，電動工具，FAN和泵，家用電器如真空吸塵器，電吹風機，空氣凈化器和咖啡機，以及高技術應用如無人機，教育/家庭機器人，平衡環。本文介紹了STSPIN32F0A主要特性，框圖和模擬IC框圖，應用案例電路圖以及評估板STEVAL-SPIN3202主要特性，元件分布圖，電路圖和材料清單。

The STSPIN32F0A is a System-In-Package providing an integrated solution suitable for driving three-phase BLDC motors using different driving modes. It embeds a triple half-bridge gate driver able to drive power MOSFETs with a current capability of 600 mA （sink and source）。 The high- and low-side switches of same half-bridge cannot be simultaneously driven high thanks to an integrated interlocking function.

An internal DC/DC buck converter provides the 3.3 V voltage suitable to supply both the MCU and external components. An internal LDO linear regulator provides the supply voltage for gate drivers.

The integrated operational amplifiers are available for the signal conditioning， e.g. the current sensing across the shunt resistors.A comparator with a programmable threshold is integrated to perform the overcurrent protection.

The integrated MCU （STM32F031C6 with extended temperature range， suffix 7 version） allows performing field-oriented control， the 6-step sensorless and other advanced driving algorithms. It has the write-protection and read-protection feature for the embedded Flash memory to protect against unwanted writing and/or reading. It is possible to download the firmware on-the-field through the serial interface thanks to the embedded bootloader.

The STSPIN32F0A device also features overtemperature and undervoltage lockout protections and can be put in the standby mode to reduce the power consumption. The device provides 16 general-purpose I/O ports （GPIO） with the 5 V tolerant capability， one 12-bit analog-to-digital converter with up to 9 channels performing conversions in a single-shot or scan modes， 5 synchronizable general-purpose timers and supports an easy to use debugging serial interface （SWD）。

STSPIN32F0A主要特性：

? Extended operating voltage from 6.7 to 45 V

? Three-phase gate drivers ? 600 mA sink/source

? Integrated bootstrap diodes

? Cross-conduction prevention

? 32-bit ARM? Cortex?-M0 core： ? Up to 48 MHz clock frequency

? 4-kByte SRAM with HW parity

? 32-kByte Flash memory with option bytes used for write/readout protection

? Availability FW bootloader

? 3.3. V DC/DC buck converter regulator with overcurrent， short-circuit， and thermal protection

? 12 V LDO linear regulator with thermal protection

? 16 general-purpose I/O ports （GPIO）

? 5 general-purpose timers

? 12-bit ADC converter （up to 9 channels）

? I2C， USART and SPI interfaces

? 3 rail-to-rail operation amplifiers for signal conditioning

? Comparator for overcurrent protection with programmable threshold

? Standby mode for low power consumption

? UVLO protection on each power supply： ? VM， VDD， VREG and VBOOTx

? On-chip debug support via SWD

? Extended temperature range： -40 to +125 ℃

STSPIN32F0A應用：

? Smart manufacturing equipment

? Power tools， FANs and pumps

? Home appliances： vacuum cleaners， hand/hair dryers， air purifiers and coffee machines

? High-tech applications such as： drones， gimbals， educational/home robots

圖1.STSPIN32F0A框圖

圖2.STSPIN32F0A模擬IC框圖

圖3.STSPIN32F0A應用案例電路圖

評估板STEVAL-SPIN3202

The STEVAL-SPIN3202 three-phase brushless DC motor driver board is an evaluation board based on the STSPIN32F0A and STD140N6F7 MOSFETs. It provides an affordable and easy-to-use solution for the implementation of low voltage motor driving applications.The board is designed for sensored or sensorless vector control - FOC and six-step algorithms with single shunt sensing.

評估板STEVAL-SPIN3202主要特性：

Input voltage from 7V to 45V

Output current up to 15 Arms

Power stage based on STD140N6F7 MOSFETs

Embedded 3.3 V buck regulator

Embedded 12 V LDO regulator

Single shunt current sensing

Digital Hall sensors and encoder input

Overcurrent comparator

Bus voltage sensing

Fully compatible with STM32 PMSM FOC software development kit

6-step sensorless and sensored firmware supported

Embedded ST-LINK/V2-1

Easy user interface with buttons and trimmer

STM32 FW boot loader supported

RoHS compliant

Image

圖4.評估板STEVAL-SPIN3202外形圖

圖5.評估板STEVAL-SPIN3202元件分布圖

圖6.評估板STEVAL-SPIN3202電路圖（1）

圖7.評估板STEVAL-SPIN3202電路圖（2）

圖8.評估板STEVAL-SPIN3202電路圖（3）

圖9.評估板STEVAL-SPIN3202電路圖（4）

評估板STEVAL-SPIN3202材料清單：

推薦課程：

張飛軟硬開源，基于STM32BLDC直流無刷電機驅動器視頻套件

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