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
产品规格
用户手册
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
许可协议
Evaluation Tool Software
| 型号 | 制造商 | Description |
|---|
| STSW-L9942 | ST | EVAL-L9942 Graphical User Interface |
样片和购买
| 型号 | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| EVAL-L9942 | 42.88 | 1 | NEC | EAR99 | - |
质量和可靠性
| 型号 | RoHS Compliance Grade | Material Declaration** |
|---|
| EVAL-L9942 | Not compliant | |
