STSPIN948 Scalable Dual Full-Bridge Drivers

STMicroelectronics STSPIN948 Scalable Dual Full-Bridge Drivers are 4.5A devices for brushed DC motors or bipolar stepper motors. The power stage is designed with high dynamic performance, allowing users to achieve high-frequency PWM control with precise duty cycles. Each full-bridge is independent with an adjustable threshold current limiter and OFF-time with slow or mixed decay selection. Using an external shunt resistor, two amplifiers with fixed amplification factors provide current sensing. An adjustable slew rate guarantees the best trade-off between performances and EMI. The versatile power stage offers several ways of operation for a high level of flexibility. STMicroelectronics STSPIN948 provides a complete set of protection features, including overcurrent, overtemperature, and low bus voltage detection.