L9942 - Integrated stepper motor driver

Product Overview

ST Microelectronics

Datasheet Details

Part number	L9942
Manufacturer	STMicroelectronics
File Size	518.94 KB
Description	Integrated stepper motor driver
Datasheet	L9942 Datasheet
Additional preview pages of the L9942 datasheet.

Product details

Description

The L9942 is an integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile look-up-table to allow a flexible adaptation of the stepper motor characteristics and intended operating conditions.

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.
Pro.

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Published: Feb 17, 2007 |