Unipolar Stepper Motor

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In unipolar stepper motors, stator windings share a common terminal; the free terminal of each winding is connected to a separate power switch and the current is allowed to flow in one direction through the motor windings. Diodes are used to clamp the voltage across the switches at turn-off. ST’s portfolio features a wide selection of power MOSFETs, diodes and microcontrollers to build a discrete implementation of a unipolar stepper motor driver.

MOSFET and IGBT Drivers

STripFET F7 series

DC-DC Converters

Amplifiers and Comparators

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	Resource title	Version	Latest update

Application Notes (5)

	Resource title	Version	Latest update
PDF	AN5789 Considerations on bootstrap circuitry for gate drivers	1.0	28 Mar 2022	28 Mar 2022 AN5789 Considerations on bootstrap circuitry for gate drivers 1.0
PDF	AN1794 PractiSPIN evaluation system configuration and set up guide	2.4	13 Sep 2018	13 Sep 2018 AN1794 PractiSPIN evaluation system configuration and set up guide 2.4
PDF	AN460 STEPPER MOTOR DRIVE CONSIDERATIONS, COMMON PROBLEMS & SOLUTIONS	1.2	13 Sep 2018	13 Sep 2018 AN460 STEPPER MOTOR DRIVE CONSIDERATIONS, COMMON PROBLEMS & SOLUTIONS 1.2
PDF	AN5765 STSPIN32F0x low voltage brushless motor controller layout guidelines	1.0	03 Feb 2022	03 Feb 2022 AN5765 STSPIN32F0x low voltage brushless motor controller layout guidelines 1.0
PDF	AN235 Stepper motor driving	2.2	13 Sep 2018	13 Sep 2018 AN235 Stepper motor driving 2.2

Brochures (1)

	Resource title	Version	Latest update
PDF	Motor Control Reference Guide	01.22	23 May 2022	23 May 2022 Motor Control Reference Guide 01.22

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Part Number	Description	Core product	Tool Type	Supplier	Sort by: part number
EVAL6393FB Active	Low voltage full bridge reference design board featuring L6393 advanced high-voltage gate driver	L6393	Brushed Motors	-	EVAL6393FB Active Low voltage full bridge reference design board featuring L6393 advanced high-voltage gate driver
EVAL6491HB Active	Demonstration board for L6491 gate driver with smart shut down feature	L6491	Brushed Motors	-	EVAL6491HB Active Demonstration board for L6491 gate driver with smart shut down feature
EVAL6494L Active	Demonstration board for L6494L gate driver	-	Brushed Motors	ST	EVAL6494L Active Demonstration board for L6494L gate driver
EVAL6498L Active	Evaluation board for the L6498L gate driver	-	Brushed Motors	ST	EVAL6498L Active Evaluation board for the L6498L gate driver
EVALSTDRV600HB8 Active	Demonstration board kit for L638xE and L639x high-voltage gate drivers	L6385E , L6395	Brushed Motors	ST	EVALSTDRV600HB8 Active Demonstration board kit for L638xE and L639x high-voltage gate drivers

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Unipolar Stepper Motor

All resources

Application Notes (5)

Brochures (1)

All tools & software

Evaluation Tool Software

STSW-AEKEXP-DSK

All Hardware Evaluation Tools

Evaluation Tools

EVAL6393FB

EVAL6491HB

EVAL6494L

EVAL6498L

EVALSTDRV600HB8

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