The L6470 is a fully integrated microstepping motor driver with motion engine and SPI interface, suitable for driving two-phase bipolar stepper motors.
The L6470 is a fully integrated microstepping motor driver designed for driving two-phase bipolar stepper motors. It features a dual low Rds(on) MOS full bridge with accurate on-chip current sensing for non-dissipative current control and overcurrent protection. The device achieves up to 1/128 microstepping resolution through a unique control system.
| Operating voltage | 8 - 45 V |
|---|---|
| Output peak current | 7.0 A |
| Output RMS current | 3.0 A |
| Microstepping resolution | Up to 1/128 |
| SPI interface speed | 5 Mbit/s |
The L6470 is suitable for driving two-phase bipolar stepper motors.
Yes, the device includes sensorless stall detection as a key feature.
The maximum PWM frequency depends on the oscillator; for a 32-MHz oscillator, it reaches 128 kHz.