Industry news--Karmin Electronic (HK) Limited

STMicroelectronics releases 75V STSPIN motor driver chip, making it convenient for users to expand industrial motor driver designs
2026-03-23

New series of half bridge and full bridge driver chips improve the flexibility of 48V motor drive design

STSPIN9P series 75V motor driver chip from STMicroelectronics helps customers accelerate the development of industrial motor drivers with higher robustness requirements. The twelve products in this series are compatible with commonly used power supply voltages such as 48V, allowing users to easily expand their drive designs for different types of motors, supporting power up to 500W.

The newly launched STSPIN9P1 half bridge driver and STSPIN9P2 full bridge driver further expand the STSPIN motor driver product family, ensuring fast start-up and operation of motor control applications, allowing developers to test and fine tune motor drive performance. The new product supports wide voltage power supplies with an output current of up to 10A, suitable for industrial automation and robotics, as well as household appliances, stage lighting, water pumps, fans, and textile machines.

This series of driver chips only require power supply through bus voltage and support 7V to 75V wide voltage power input, which can simplify system design and PCB layout. The built-in voltage regulator supplies power to internal circuits such as control logic circuits and gate drivers; The integrated charge pump supplies power to the high side gate driver and can achieve 100% duty cycle operation; The integrated analog front-end circuit consists of a current detection amplifier and a comparator. The current detection amplifier works in conjunction with an external current sampling resistor, and the comparator is triggered only after reaching the current limit threshold. Users can configure the current limit threshold by changing the external reference voltage.

In STSPIN9P products with internal current limiting function, the comparator signal is directly connected to the control logic circuit of the chip. This configuration allows users to select attenuation strategies through external pins, and choose fixed turn off time or optimized PWM duty cycle based on motor, load, and desired behavior. In addition, there is a pin for selecting the gate driver turn-on rate, allowing developers to quickly and economically optimize energy efficiency and electromagnetic radiation. The shutdown time is always kept the shortest, achieving the shortest dead time in the full bridge drive.

While providing powerful and flexible functions, the STSPIN9P chip series also integrates safety functions such as undervoltage protection, overvoltage protection, and overcurrent protection. The chip also integrates a temperature sensor for each MOSFET to achieve overheating protection. In addition, the STSPIN9P series integrated open circuit load detection function can check whether the motor connection is correct when the power stage is turned off.

For ease of development, the EVLSPIN9P1-3PH reference design integrates three STSPIN9P12 half bridge drivers within a three-phase BLDC/PMSM motor driver. This circuit board supports three resistor or single resistor current detection topologies.

STMicroelectronics also provides a demonstration board equipped with a single resistor current detection function to help developers evaluate the performance of the entire range of STSPIN9P1 and STSPIN9P2 drivers. This includes half bridge driver demonstration boards EVLSPIN9P11, EVLSPIN9P12, EVLSPIN9P15, and EVLSPIN9P16; Full bridge driver demonstration boards EVLSPIN9P21, EVLSPIN9P22, EVLSPIN9P213, and EVLSPIN9P24.

All STSPIN9P half bridge chip pins are compatible with each other and are packaged in a 7mm x 7mm QFN. The full bridge driver chip is also pin compatible and adopts a 9mm x 7mm QFN package. For more product details, please visit https://www.st.com/stspin9p

Prev：Vishay推出标准厚膜片式电阻，兼具耐硫性能和长期稳定性 Next：There is no next post! !