L9942 Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile Features ■ Two full bridges for max.
1.
3 A load (RDSON = 500 m) ■ Programmable current waveform with look-up table: 9 entries with 5 bit resolution ■ Current regulation by integrated PWM controller and internal current sensing ■ Programmable stepping mode: full, half, mini and microstepping ■ Programmable slew rate for EMC and power dissipation optimization ■ Programmable Fast-, Slow-, Mixed- and AutoDecay Mode ■ Full-scale current programmable with 3 bit resolution ■ Programmable stall detection ■ Step clock input for reduced µController requirements ■ Very low current cons...

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