
TMC2130为3D打印、相机、扫描仪和其他自动化设备应用提供了集成电机驱动解决方案。 该模块具有集成的微步进分度器,无传感器失速检测技术StallGuard2™,无传感器负载依赖电流控制CoolStep™和完全无噪声电流控制模式StealthChop™,旨在驱动双极性步进电机。
| Model | TMC2130 |
|---|---|
| Interface | Step/Dir or SPI |
| Configuration | CFG Pins or SPI |
| Native Microsteps | up to 1/256 |
| microPlyer Microsteps | 1/256 |
| Logic Voltage (VIO) | 3-5V |
| Motor Voltage (VM) | 5.5-46V |
| Motor Phase Current max | 1.2A RMS, 2.5A Peak |
| Internal V- Regulator | enabled |
| RDSon | >=0.5 Ohm |
| stealthChop (quiet) | yes |
| spreadCycle | yes |
| coolStep | yes |
| stallGuard | yes |
| dcStep | yes |

| Pin | 功能 |
|---|---|
| Power Supply | |
| GND | Ground |
| VM | Motor Supply Voltage |
| VIO | Logic Supply Voltage |
| Motor Outputs | |
| M1A | Motor Coil 1 |
| M1B | Motor Coil 1 |
| M2A | Motor Coil 2 |
| M2B | Motor Coil 2 |
| Control Inputs | |
| STEP | Step-Signal Input |
| DIR | Direction-Signal Input |
| TMC2130 (SPI_MODE=1) | |
| EN | Enable Motor Outputs: GND=on, VIO=off, OPEN=Auto-Power-Down |
| SDO/CFG0 | Serial Data Output (SPI) |
| SDI/CFG1 | Serial Data Input (SPI) |
| SCK/CFG2 | Serial Clock Input (SPI) |
| CS/CFG3 | Chip Select Input (SPI) |
| DCEN/CFG4 | dcStep Enable Input (GND=off) |
| DCIN/CFG5 | dcStep Gating Input |
| DIAG0 | Diagnostics Output 0 |
| DIAG1 | Diagnostics Output 1 |


设置电机电流的最佳方法是测量Vref引脚上的电压(0-2.5V)并使用电位计调节电压。 最大可设置的电机电流为1.77A RMS(0.11Ohm检测电阻),但SilentStepSticks只能使用高达1.2A RMS。
Irms =(Vref * 1.77A)/2.5V=Vref * 0.71
Vref =(Irms * 2.5V)/ 1.77A = Irms * 1.41 = Imax
Vref 引脚上的电压
Irms - > RMS(均方根)每相电流(Irms = Imax / 1.41)
Imax - >每相最大电流(Imax = Irms * 1.41)
注意
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