Description
The SparkFun AutoDriver board is based on the STMicro L6470 dSPIN stepper motor driver. This powerful chip allows you to control a stepper motor with a voltage from 8 to 45V at 3Arms over an SPI connection. The AutoDriver board has been designed to be easily integrated into a project, even with multiple boards. Just connect your motors and your SPI-capable microcontroller and get steppin'.
STMicro's L6470 is a 3A, 8-45V bipolar stepper motor driver. It has built-in overcurrent detection, undervoltage detection, overtemperature detection, stall detection, a 5-bit ADC, and a switch input that can be used for either user jog control or as a hard stop function. As if that weren't enough, it also features microstepping support (up to 128 microsteps per full step) and PWM drive voltage limiting. Please keep in mind that the L6470 requires a great deal more configuration and adds software complexity to your system.
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Supports up to 128 Microsteps per Full Step
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Daisy-Chain Capable
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Over-Temperature Detect
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Over-Current Detect
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Under-Voltage Detect
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PWM Drive-Voltage Limiting
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SPI Controlled
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Onboard Oscillator and Speed/Location Registers
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Stall Detection
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5-bit ADC
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Datasheet (L6470 dSPIN)
