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L9942 Fiches technique (PDF) - STMicroelectronics

L9942 Datasheet PDF - STMicroelectronics
No de pièce L9942
Télécharger  L9942 Télécharger

Taille du fichier   575.33 Kbytes
Page   37 Pages
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile

L9942 Datasheet (PDF)

Go To PDF Page Télécharger Fiches technique
L9942 Datasheet PDF - STMicroelectronics

No de pièce L9942
Télécharger  L9942 Click to download

Taille du fichier   575.33 Kbytes
Page   37 Pages
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile

L9942 Fiches technique (HTML) - STMicroelectronics

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L9942 Détails du produit

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.

It is possible to use different current profiles depending on target criteria: audible noise, vibrations, rotation speed or torque.



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 Auto Decay Mode

■ Full-scale current programmable with 3 bit resolution

■ Programmable stall detection

■ Step clock input for reduced µController requirements

■ Very low current consumption in standby mode IS< 3 µA, typ. Tj 85 °C

■ All outputs short circuit protected with openload, overload current, temperature warning and thermal shutdown

■ The PWM signal of the internal PWM controller is available as digital output.

■ All parameters are guaranteed for 3 V < Vcc < 5.3 Vand for 7 V < Vs < 20 V

Applications




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À propos de STMicroelectronics


Stmicroelectronics est un fabricant multinational d'électronique et de semi-conducteurs basé à Genève, en Suisse.

La société propose une large gamme de produits, notamment des microcontrôleurs, des capteurs, des amplificateurs de puissance et des circuits intégrés pour diverses applications sur les marchés automobiles, industriels et consommateurs.

Fondée en 1987, Stmicroelectronics a des opérations dans plus de 100 pays et est l'une des plus grandes sociétés de semi-conducteurs au monde.

*Ces informations sont fournies à titre informatif uniquement, nous ne serons pas responsables des pertes ou dommages causés par les informations ci-dessus.




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