AEK-MOT-SM81M1

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Design Win

Stepper motor driver evaluation board based on the L99SM81V for automotive applications

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Product overview

Description

The AEK-MOT-SM81M1 evaluation board is designed to drive a bipolar stepper motor in micro-stepping mode, with coil voltage monitoring for stall detection.

This application board features the automotive-grade L99SM81V stepper motor driver with embedded power MOSFETs and a comprehensive set of I/Os for MCU control and feedback signaling using SPI communication through a 12-pin male connector or two 5-pin connectors on the board.

The board is developed as part of the AutoDevKit initiative, and evaluation firmware is available for suitable microcontrollers such as the automotive-grade SPC5 series MCU on the AEK-MCU-C4MLIT1 control board.

  • All features

    • Board functionality based on L99SM81V programmable stepper motor driver for automotive applications:
      • with micro-stepping and hold functions
      • BEMF monitoring for stall detection
      • programmable configuration via SPI
      • 5 V internal linear voltage regulator (output available on board connector)
    • Board reverse battery protection with STD95N4F3 MOSFET, which can be substituted with two optionally mounted diodes and a jumper
    • Input operating voltage range from 6 V to 28 V
    • Output current up to 1.35 A
    • Board size: 65 mm length x 81 mm width x 11 mm maximum component height
    • WEEE and RoHS compliant
    • All ST components are qualified Automotive grade
    • Part of the AutoDevKit™ initiative
    • Applications: automotive bipolar stepper motor

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Quality and Reliability

Part Number Marketing Status RoHS Compliance Grade WEEE Compliant Material Declaration**
AEK-MOT-SM81M1
Active
Ecopack2 Yes

AEK-MOT-SM81M1

Package:

Ecopack2

Material Declaration**:

Marketing Status

Active

RoHS Compliance Grade

Ecopack2

WEEE Compliant

Yes

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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AEK-MOT-SM81M1 Available at distributors

Distributor availability of AEK-MOT-SM81M1

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L99SM81V
Active
ST EAR99 NEC ITALY

AEK-MOT-SM81M1 Active

ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

AEK-MOT-SM81M1

Core Product:

L99SM81V

Supplier:

ST

ECCN (EU):

NEC

Country of Origin:

ITALY

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors