POWERSTEP01

POWERSTEP01 is a system-in-package integrating 8 N-channel 16mohm MOSFET for stepper applications up to 85V with an SPI programmable controller, providing a full digital control of the motion through a speed profile generation and positioning calculations. It integrates a dual low RDS(on) full-bridge with embedded non-dissipative overcurrent protection. The device can operate with both voltage mode driving and advanced current control fitting different application needs. The digital control core can generate user’s defined motion profiles with acceleration, deceleration, speed or a target position easily programmed through a dedicated register set. All application commands and data registers, including those used to set analogue values (i.e. current protection trip point, dead time, PWM frequency, etc.) are sent through a standard 5Mbit/s SPI.

• Power SIP integrating a programmable microstepping controller and 8 N-channel power MOSFETs
• Operating voltage range from 7.5V to 85V
• 10ARMS maximum output current
• Adjustable output slew rate
• Programmable speed profile, up to 1/128 microstepping, sensorless stall detection
• Integrated voltage regulators
• SPI interface
• Low quiescent standby currents
• Programmable non-dissipative overcurrent protection, overtemperature protection
• Available in a 89 pin VFQFPN package