L6470 dSPIN™ fully integrated microstepping motor driver with motion engine and SPI Datasheet − production data Features ■ Operating voltage: 8 - 45 V ■ A out peak current ( A .) ■ Low RDS(on) Power MOSFETs ■ Programmable speed profile and positioning ■ Programmable power MOS slew rate ■ Up to 1/128 microstepping POWERSO36 HTSSOP28 ■ Sensorless stall detection power switches equipped with an accurate on- ■ SPI interface chip current sensing circuitry suitable for non- ■ Low quiescent and standby currents dissipative current control and overcurrent protection. Thanks to a unique control system, a ■ Programmable non-dissipative overcurrent true 1/128 steps resolution is achieved. The protection on high and low-side digital control core can generate user defined ■ Two-levels of overtemperature protection motion profiles with acceleration, deceleration, speed or target position, easily programmed Applications through a dedicated registers set. mands and data registers, including those used to set ■ Bipolar stepper motors analogue values (. current control value, current protection trip point, deadtime, PWM frequency, etc.) are sent through a standard 5- Description Mbit/s SPI. A very rich set of protections (thermal, The L6470, realized in analog mixed signal low bus voltage, overcurrent, motor stall) allows technology
