STMicroelectronics EVAL-L9942 Evaluation Board
STMicroelectronics EVAL-L9942 Evaluation Board is designed to provide the user a platform to evaluate the 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 Evaluation 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 also be connected to the Discovery Boards developed for the SPC56 Microcontroller.
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): 7V ÷ 20V
- 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
Supported Device
STMicroelectronics L9942 Stepper Motor Driver
Integrated stepper motor driver for bipolar stepper motors with microstepping.
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Paskelbta: 2014-03-14
| Atnaujinta: 2022-03-11