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STMicroelectronics STSPIN32G4

High performance 3-Phase motor controller with embedded STM32G4 MCU

The STSPIN32G4 is an extremely integrated and flexible motor controller for driving 3-phase brushless motors, helping designers to choose the most suitable driving mode and reduce PCB area. It embeds a triple half-bridge gate driver able to drive power MOSFETs.

The high- and the low-side switches of the same half-bridge cannot be simultaneously driven high thanks to an integrated interlocking function. An additional protection feature is represented by hardware VDS monitoring circuitry that constantly monitors each of the six external MOSFETs and in case an overvoltage is detected, switches off all gate driver outputs.

Key features

Motor supply voltage from 5.5 V to 75 V
Three-phase gate drivers with 1 A sink/source current capability
V_DS monitoring of the power stage MOSFETs
STM32G431 microcontroller with 32-bit ARM® Cortex®-M4 MCU+FPU core

Additional features

Motor supply voltage from 5.5 V to 75 V
Three-phase gate drivers:
- 1 A sink/source current capability
- VDS monitoring of the power stage MOSFETs
- Integrated bootstrap diodes
- I2C accessible configuration and status registers for best application fit
- Cross-conduction prevention
STM32G431 microcontroller with 32-bit ARM® Cortex®-M4 MCU+FPU core:
- Up to 170 MHz clock frequency
- CORDIC mathematical hardware accelerator for trigonometric functions
- 128 kB Flash memory with proprietary code readout protection (PCROP), securable memory area, 1 kB OTP
- 32 kB SRAM memory with HW parity check
- 2 x advanced times for motor control, 16-bit with up to 6 x PWM channels
- 8 x general-purpose timers
- 2 x ADCs 12-bit resolution (up to 19 channels) with 4 Msps conversion rate
- 4 x 12-bit DAC channels
- 4 x ultra-fast rail-to-rail comparators
- 3 x rail-to-rail operational amplifiers usable also in PGA mode
- Internal high precision voltage reference
- Up to 40 GPIOs
- Full set of interfaces: I2C, SPI, UART, and CAN
Self-supplied thanks to embedded flexible power management
- VCC buck converter up to 200 mA, with programmable output and embedded MOSFET
- 3.3 V LDO linear regulator up to 150 mA
- Low quiescent linear regulator for MCU supply during standby
- Full set of protection features: thermal shutdown, short-circuit, overload and UVLO
Possibility to control 2 motors simultaneously from the same MCU
Standby mode for reduced power consumption
On-chip debug support via SWD or JTAG
Extended temperature range: -40 to +125 °C