ST STSPIN32F0A三相BLDC马达驱动方案

ST公司的STSPIN32F0A是SIP三相BLDC马达驱动器,嵌入了三个可驱动功率MOSFET的半桥栅极驱动器,驱动电流600mA,时钟频率高达48MHz的32位ARM® Cortex®-M0核,4KB SRAM和32KB闪存,工作电压6.7V-45V,内部的DC/DC转换器提供3.3V用来给MCU和外部元件供电,而LDO线性稳压器用来给栅极驱动器供电,主要用在智能制造设备,电动工具,FAN和泵,家用电器如真空吸尘器,电吹风机,空气净化器和咖啡机,以及高技术应用如无人机,教育/家庭机器人,平衡环.本文介绍了STSPIN32F0A主要特性,框图和模拟IC框图,应用案例电路图以及评估板STEVAL-SPIN3202主要特性,元件分布图,电路图和材料清单.
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 provid...