POWERSTEP01 STMicroelectronics

powerSTEP01 System-in-package integrating microstepping controller and 10 A power MOSFETs Datasheet - production data Applications High power bipolar stepper motor Stage lighting Surveillance systems Textile and sewing machines Pick and place machines Description The powerSTEP01 is a system-in-package integrating 8 N-channel 16 m MOSFETs for VFQFPN 11x14 mm stepper applications up to 85 V with an SPI programmable controller, providing a full digital control of the motion through a speed profile generation and positioning calculations. Features It integrates a dual low R full-bridge with DS(on) Power system-in-package integrating a embedded non-dissipative overcurrent protection. programmable microstepping controller and 8 The device can operate with both voltage mode N-channel power MOSFETs driving and advanced current control fitting Operating voltage: 7.5 V - 85 V different application needs. The digital control core can generate users defined motion profiles Dual full-bridge with R = 16 m DS(on) with acceleration, deceleration, speed or a target 10 A maximum output current RMS position easily programmed through a dedicated Adjustable output slew rate register set. All application commands and data registers, including those used to set analog Programmable speed profile values (i.e. current protection trip point, dead Up to 1/128 microstepping time, PWM frequency, etc.) are sent through a Sensorless stall detection standard 5-Mbit/s SPI. A very rich set of protections (thermal, low bus voltage, overcurrent Integrated voltage regulators and motor stall) make the powerSTEP01 bullet SPI interface proof, as required by the most demanding motor Low quiescent standby currents control applications. Programmable non-dissipative overcurrent Table 1. Device summary protection Overtemperature protection Order code Package Packing VFQFPN POWERSTEP01 Tray 11x14x1.0 mm VFQFPN Tape POWERSTEP01TR 11x14x1.0 mm and reel January 2020 DS9836 Rev 7 1/92 This is information on a product in full production. www.st.comContents powerSTEP01 Contents 1 Block diagram 9 2 Electrical data . 10 2.1 Absolute maximum ratings 10 2.2 Recommended operating conditions 11 3 Electrical characteristics 12 4 Pin connection . 17 5 Pin list 18 6 Typical applications 20 7 Functional description 22 7.1 Device power-up . 22 7.2 Logic I/O 22 7.3 Charge pump 22 7.4 Microstepping 23 Automatic full-step and boost modes . 24 7.5 Absolute position counter . 25 7.6 Programmable speed profiles . 25 7.7 Motor control commands . 26 7.7.1 Constant speed commands 26 7.7.2 Positioning commands 26 7.7.3 Motion commands . 27 7.7.4 Stop commands . 27 7.7.5 Step-clock mode 28 7.7.6 GoUntil and ReleaseSW commands . 28 7.8 Internal oscillator and oscillator driver . 29 7.8.1 Internal oscillator 29 7.8.2 External clock source . 29 7.9 Overcurrent detection 30 7.10 Undervoltage lockout (UVLO) . 31 2/92 DS9836 Rev 7