ST STSPIN32F0B嵌入STM32 MCU无刷BLDC马达控制方案

ST公司的STSPIN32F0B是嵌入STM32 MCU(STM32F031C6)系统级封装三相无刷BLDC马达控制器,包含了三个半桥栅极驱动器,可以电流容量600mA(沉和源)来驱动功率MOSFET,由于集成了连锁功能而在同一半桥的高边和低边开关不能同时驱动.内部的DC/DC降压转换器提供3.3V电压,适用于MCU和外接元件.而内部的LDO线性稳压器则提供了栅极驱动器的电源.集成的运算放大器用于信号调理即电阻上的电流检测.集成的可编阈值比较器可进行过流保护,而集成的MCU(STM32F031C6)具有扩展的温度范围,允许进行现场取向控制,6步无传感器和其它高档驱动算法.器件工作电压6.7V-45V,32位ARM® Cortex®-M0核工作频率高达48MHz,具有读/写保护的32KB闪存和4kB SRAM,工作温度-40到 +125℃,主要用在电动工具,风扇和泵,工业自动化,以电池为动力的家用电器.本文介绍了STSPIN32F0B主要特性,系统级封装框图,模拟IC框图,应用案例电路图,马达控制框图,以及三相无刷DC马达驱动板评估板STEVAL-SPIN3204主要特性,电路图,材料清单和PCB元件图.
The STSPIN32F0B is a System-In-Package providing an integrated solution suitable for driving three-phasebrushless 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 (sinkand source). The high- and low-side switches of same half-bridge cannot be simultaneously driven high thanks toan integrated interlocking function.
An internal DC/DC buck converter provides the 3.3 V voltage suitable to supply both the MCU and externalcomponents. An internal LDO linear regulator provides the supply voltage for gate drivers.The integrated operational amplifier is available for the signal conditioning, e.g. the current sensing across theshunt resistor.
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 fieldorientedcontrol, the 6-step sensorless and other advanced driving algorithms. It has the write-protection andread-protection feature for the embedded Flash memory to protect against unwanted writing and/or reading. It...