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L9942

Part Number	L9942
Manufacturer	ST Microelectronics
Description	Integrated stepper motor driver
Published	Feb 17, 2007
Detailed Description	L9942 Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile Fe...
Datasheet	L9942 PDF File

Overview

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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