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EVAL-L9942：Evaluation board for L9942XP microstepping fully integrated motor driver

The EVAL-L9942 is the Evaluation Board designed to provide the user a platform to evaluate the device L9942.

The L9942 is a motor driver for bipolar stepper motors with micro-stepping and programmable current profile look-up-table to allow a flexible adaptation of the motor characteristics and intended operating conditions.

Different current profiles can be chosen depending on target criteria: audible noise, vibrations, rotation speed or torque.

The decay mode used in PWM-current control circuit can be programmed to have slow, fast, mixed and auto-decay.

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.

Key Features

• Input signal connector compatible with the SPC56 Discovery boards. Possibility to connect the board to further microcontroller discovery or control boards by a simple adaptor.
• Two output terminal blocks.
• Wide supply voltage range (VBatt ): 7 V ÷ 20 V.
• 2 LEDs for monitoring VBatt and EN signal.
• Device controlled and programmed via SPI.
• L9942 diagnostic functions via SPI.
• Test points to monitoring both input signals (SPI, PWM, EN, StepClock) and the four outputs (out power stage).
• No heat-sink is required

Product Specifications

User Manuals

Board Manufacturing Specifications

Bill of Materials

Schematic Packs

License Agreement

Evaluation Tool Software

Sample & Buy

Quality & Reliability