L9935 datasheet(1/29 Pages) STMICROELECTRONICS

Part #	L9935

Description	Two-phase stepper motor driver

PDF	29 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 29 page

September 2013

Doc ID 5198 Rev 10

1/29

1

L9935

Two-phase stepper motor driver

Features

■ 2 x 1.1 A full bridge outputs

■ Integrated chopping current regulation

■ Minimized power dissipation during flyback

■ Output stages with controlled output voltage

slopes to reduce electromagnetic radiation

■ Short-circuit protection of all outputs

■ Error-flag for over load, open load and over

temperature pre alarm

■ Delayed channel switch on to reduce peak

currents

■ Max. operating supply voltage 24 V

■ Standby consumption typically 40 µA

■ Serial interface (SPI)

Description

The L9935 is a two-phase stepper motor driver

circuit suited to drive bipolar stepper motors.

The device can be controlled by a serial interface

(SPI). All protections required to design a well

protected system (short-circuit, over temperature,

cross conduction etc.) are integrated.

PowerSO20

Table 1.

Device summary

Order code

Package

Packing

L9935

PowerSO20

Tube

L9935013TR

PowerSO20

Tape and reel

www.st.com

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