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EVAL-L9942

器件型号:EVAL-L9942
器件类别:嵌入式解决方案    工程工具   
文件大小:1055.92KB,共6页
厂商名称:STMICROELECTRONICS [STMicroelectronics]
厂商官网:http://www.st.com/
标准:
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器件描述

power management IC development tools l9942xp microstep motor driver eval

参数

Manufacturer: STMicroelectronics
Product Category: Power Management IC Development Tools
RoHS: Yes
Brand: STMicroelectronics
Product: Evaluation Boards
Type: Motor / Motion Controllers & Drivers
Tool Is For Evaluation Of: L9942
Input Voltage: 20 V
Description/Function: Evaluation board for a motor driver for bipolar stepper motors with micro-stepping and programmable current
For Use With: L9942
Packaging: Bulk
Series: EVAL-L9942

EVAL-L9942器件文档内容

                                                              EVAL-L9942

                                                                                                                          EVAL-L9942

                                                              Data brief - production data

Features                                          Description

Input signal connector compatible with the      The EVAL-L9942 is the Evaluation Board
    SPC56 Discovery boards. Possibility to        designed to provide the user a platform to
    connect the board to further microcontroller  evaluate the device L9942.
    discovery or control boards by a simple
    adaptor.                                      The L9942 is a motor driver for bipolar stepper
                                                  motors with micro-stepping and programmable
Two output terminal blocks.                     current profile look-up-table to allow a flexible
                                                  adaptation of the motor characteristics and
Wide supply voltage range (VBatt): 7 V 20 V.  intended operating conditions.
2 LEDs for monitoring VBatt and EN signal.
Device controlled and programmed via SPI.       Different current profiles can be chosen
                                                  depending on target criteria: audible noise,
L9942 diagnostic functions via SPI.             vibrations, rotation speed or torque.

Test points to monitoring both input signals    The decay mode used in PWM-current control
    (SPI, PWM, EN, StepClock) and the four        circuit can be programmed to have slow, fast,
    outputs (out power stage).                    mixed and auto-decay.

No heat-sink is required                        The programmable stall detection is useful to
                                                  avoid running the motor too long time in stall
                                                  position minimizing the noise.

                                                  The EVAL-L9942 board provides all the inputs
                                                  and outputs capabilities necessary to drive
                                                  correctly a bipolar stepper motor and also to
                                                  monitoring diagnostic functionalities.

                                                  The board can be connected to the discovery
                                                  boards developed for the SPC56 microcontroller.

                                                  Table 1. Device summary

                                                  Order code                                                              Reference

                                                  EVAL-L9942  EVAL-L9942
                                                              Evaluation board

December 2013  DocID025658 Rev 1                                                                                                  1/5

This is information on a product in full production. For further information contact your local STMicroelectronics sales  www.st.com
office.
Contents                     EVAL-L9942

Contents

1    System requirements, HW and SW resources . . . . . . . . . . . . . . . . . . . . 3

     1.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2    Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2/5       DocID025658 Rev 1
EVAL-L9942                System requirements, HW and SW resources

1    System requirements, HW and SW resources

1.1  System requirements

      Power Supply: 7 V 20 V; 3 A

      SPC56 discovery board or microcontroller board able to offer SPI signals, EN,
           StepClock, PWM signals and +5 V (Vcc)

            DocID025658 Rev 1                                                         3/5

                                                                                                     4
Revision history                                                       EVAL-L9942

2    Revision history

          Date    Revision  Table 2. Revision history
     17-Dec-2013                                              Changes

                  1         Initial release.

4/5                         DocID025658 Rev 1
EVAL-L9942

                                                                             Please Read Carefully:

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right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
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UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
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                                 Information in this document supersedes and replaces all information previously supplied.
            The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.

                                                             2013 STMicroelectronics - All rights reserved

                                                                   STMicroelectronics group of companies
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                                                                                    www.st.com

            DocID025658 Rev 1  5/5

                                              5
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