Overview
The STSPIN32G4 from STMicroelectronics is a highly integrated and flexible 3-phase motor controller designed for driving 3-phase brushless motors. This device combines a triple half-bridge gate driver with a high-performance STM32G431 microcontroller, based on the 32-bit ARM® Cortex®-M4 core. The STSPIN32G4 is optimized to reduce PCB area and the overall Bill Of Materials, making it an ideal choice for advanced motor control applications. It features a robust set of programmable features, advanced power management, and comprehensive protection mechanisms, ensuring stable operation in demanding industrial environments.
Key Specifications
| Parameter | Specification |
|---|---|
| Microcontroller | STM32G431VBx3, 32-bit ARM® Cortex®-M4 MCU+FPU core |
| Clock Frequency | Up to 170 MHz |
| Flash Memory | 128 kB with proprietary code readout protection (PCROP), securable memory area, 1 kB OTP |
| SRAM Memory | 32 kB with hardware parity check |
| Gate Driver | Triple half-bridge, 1 A sink/source current capability, VDS monitoring, integrated bootstrap diodes |
| ADCs | Two 12-bit ADCs, up to 19 channels, 4 Msps conversion rate |
| DACs | Four 12-bit DAC channels (two external and two internal) |
| Comparators | Four ultra-fast rail-to-rail comparators |
| Operational Amplifiers | Three rail-to-rail operational amplifiers usable also in PGA mode |
| Timers | Two advanced timers for motor control (16-bit with up to 6 x PWM channels each), eight general-purpose timers |
| Interfaces | I2C, SPI, UART, CAN |
| Power Management | Embedded flexible power management, VCC buck converter, 3.3 V LDO linear regulator, low quiescent linear regulator for standby |
| Protection Features | Thermal shutdown, short-circuit, overload, UVLO, cross-conduction prevention |
| Operating Temperature | -40°C to +125°C |
| Package | 9x9 mm VFQFPN package |
Key Features
- High-Performance MCU: Based on the 32-bit ARM® Cortex®-M4 core with a single-precision floating-point unit (FPU) and DSP instructions, operating at up to 170 MHz.
- Advanced Gate Driver: Triple half-bridge gate driver with 1 A sink/source current capability, VDS monitoring, and integrated bootstrap diodes.
- Power Management: Embedded flexible power management structure including a VCC buck converter and a 3.3 V LDO linear regulator.
- Analog Peripherals: Two fast 12-bit ADCs, four ultra-fast rail-to-rail comparators, and three rail-to-rail operational amplifiers.
- Timers and PWM: Two advanced timers for motor control with up to 6 x PWM channels each, and eight general-purpose timers.[
- Interfaces: I2C, SPI, UART, and CAN interfaces for comprehensive connectivity.
- Protection Mechanisms: Thermal shutdown, short-circuit, overload, UVLO, and cross-conduction prevention.[
- Low Power Modes: Standby mode with low quiescent current consumption down to 15 μA typical.[
Applications
- Industrial Automation: Suitable for industrial applications requiring high-performance motor control, such as robotics and automation systems.
- Home Appliances: Used in home appliances that require advanced motor control, such as washing machines and air conditioners.
- E-bikes and Garden Tools: Ideal for e-bikes, garden tools, and other portable equipment needing efficient and reliable motor control.
- Drones and Robotics: Applied in drones and robotics where precise and efficient motor control is crucial.[
- Smart Actuators: Utilized in next-generation smart actuators for various motion control applications.[
Q & A
- What is the STSPIN32G4?
The STSPIN32G4 is a highly integrated 3-phase motor controller from STMicroelectronics, combining a triple half-bridge gate driver with a high-performance STM32G431 microcontroller.
- What is the clock frequency of the STM32G431 microcontroller in the STSPIN32G4?
The STM32G431 microcontroller operates at a clock frequency of up to 170 MHz.
- What are the key features of the gate driver in the STSPIN32G4?
The gate driver is a triple half-bridge with 1 A sink/source current capability, VDS monitoring, and integrated bootstrap diodes.
- What types of timers are available in the STSPIN32G4?
The device includes two advanced timers for motor control with up to 6 x PWM channels each, and eight general-purpose timers.
- What are the protection mechanisms available in the STSPIN32G4?
The STSPIN32G4 features thermal shutdown, short-circuit, overload, UVLO, and cross-conduction prevention.
- What is the operating temperature range of the STSPIN32G4?
The operating temperature range is from -40°C to +125°C.
- Can the STSPIN32G4 control multiple motors simultaneously?
Yes, the STSPIN32G4 can control two independent 3-phase BLDC motors simultaneously.
- What interfaces are available on the STSPIN32G4?
The device includes I2C, SPI, UART, and CAN interfaces.
- How does the STSPIN32G4 manage power?
The STSPIN32G4 has an embedded flexible power management structure including a VCC buck converter and a 3.3 V LDO linear regulator.
- What are some common applications of the STSPIN32G4?
The STSPIN32G4 is used in industrial automation, home appliances, e-bikes, garden tools, drones, and robotics.
