STMicroelectronics

STSPIN830 is a compact and versatile field oriented control FOC ready three-phase motor driver. It integrates in a very small 4 x 4 mm QFN package, both the control logic and a fully protected low RDSontriple half-bridge power stage.Thanks to a dedicated MODE input pin the device offers the freedom to decide whether to drive it through 6 inputs (one for each power switch) or a more common 3 PWM direct driving inputs. The STSPIN830 supports both single and three shunts architectures and embeds a PWM current limiter based on user settable values of reference voltage and OFF time.The devices can be forced in a low consumption state reducing the total current consumption down to less than 45 μA. As with all other devices from the STSPIN family, the STSPIN830 integrates a complete set of protections for the power stages (non-dissipative overcurrent, thermal shutdown, short-circuit, undervoltage lockout and interlocking) making it a bulletproof solution for the new wave of demanding industrial applications.

The STSPIN948 is a 4.5 A dual full-bridge driver for brushed DC motors or bipolar stepper motors. The power stage is designed with high dynamic performance, allowing to achieve high frequency PWM control with precise duty-cycle. Each full-bridge is totally independent with a current limiter with adjustable threshold and OFF-time with slow or mixed decay selection. Two amplifiers with fixed amplification factor are available for current sensing (using an external shunt resistor). The adjustable slew-rate guarantees the best trade-off between performances and EMI. Versatile power stage offers several ways of operation for a high level of flexibility. The device offers a complete set of protection features including overcurrent, overtemperature, and low bus voltage detection.

The device is manufactured in low voltage PNP Planar Technology with "Base Island" layout. The resulting Transistor shows exceptional high gain performance coupled with very low saturation voltage.