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.
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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
- Board functionality based on L99SM81V programmable stepper motor driver for automotive applications:
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All resources
| Resource title | Version | Latest update |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 29 Jul 2019 | 29 Jul 2019 |
Bill of Materials (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 29 Jul 2019 | 29 Jul 2019 |
Schematic Pack (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 29 Jul 2019 | 29 Jul 2019 |
Quality and Reliability
| Part Number | Marketing Status | RoHS Compliance Grade | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|
| AEK-MOT-SM81M1 | Active | Ecopack2 | Yes | - | - | |
AEK-MOT-SM81M1
Package:
Ecopack2Material Declaration**:
(**) 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
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AEK-MOT-SM81M1 | | | distributors No availability of distributors reported, please contact our sales office |
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AEK-MOT-SM81M1 Active
(*) 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