Chip-dat/TI-dat/TI-Motor-dat/DRV8871-dat/2025-06-02-00-44-38.png
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Chip-dat/TI-dat/TI-Motor-dat/DRV8871-dat/DRV8871-dat.md
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@@ -44,6 +44,18 @@ Yes, you **can use the DRV8871 to drive a gear DC motor**, and it's actually **a
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- Mobile platforms
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- Mechanisms with high starting torque
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+
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+## board
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+
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+![](2025-06-02-00-44-38.png)
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+
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+- ILIM == pin4 == Connect a resistor to ground to set the current chopping threshold
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+
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+For example, if R_ILIM = 32 kΩ, the DRV8871 device limits motor current to 2 A no matter how much load torque is applied.
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+
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+The minimum allowed RILIM is 15 kΩ.
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+
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+
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## ref
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- [[DRV8871-dat]]
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\ No newline at end of file
Chip-dat/TI-dat/TI-Motor-dat/L293-dat/L293-dat.md
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@@ -18,12 +18,12 @@ The L293D is a 16-pin motor driver IC, also known as a quad half-H driver, capab
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## 🔌 L293 vs L293D: Key Differences
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-| Feature | **L293** | **L293D** |
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-|---------------------------|----------------------------------|--------------------------------------|
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-| **Internal Flyback Diodes** | ❌ No | ✅ Yes (built-in protection diodes) |
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-| **Maximum Output Current** | Up to 1 A (peak 2 A) | Up to 600 mA (peak 1.2 A) |
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-| **Cost** | Slightly cheaper | Slightly more expensive |
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-| **Protection** | Needs external diodes | Protected against back EMF |
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+| Feature | **L293** | **L293D** |
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+| --------------------------- | --------------------- | ---------------------------------- |
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+| **Internal Flyback Diodes** | ❌ No | ✅ Yes (built-in protection diodes) |
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+| **Maximum Output Current** | Up to 1 A (peak 2 A) | Up to 600 mA (peak 1.2 A) |
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+| **Cost** | Slightly cheaper | Slightly more expensive |
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+| **Protection** | Needs external diodes | Protected against back EMF |
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@@ -101,6 +101,8 @@ The L293D is a 16-pin motor driver IC, also known as a quad half-H driver, capab
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## ref
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+
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+- [[SDR1064-dat]] - [[motor-driver-dat]]
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- [[74LVC2G04-dat]] - [[logic-inverter-dat]] - [[logic-gate-dat]]
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Tech-dat/acturator-dat/motor-dat/DC-Gear-Motor-dat/MG540-dat/MG540-dat.md
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@@ -0,0 +1,68 @@
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+
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+# MG540-dat
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+
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+## Features
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+
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+Gear Ratio 1:30
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+Speed before reduction 10000rpm
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+Speed after reduction 330rpm
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+Rated current 1.44A
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+Rated voltage 12V
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+Rated power 15W
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+Rated torque 2.6kg.cm
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+Rated speed 280rpm
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+Stall torque 10kg.cm
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+Stall current 9A
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+
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+
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+
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+## 🔧 Recommended Motor Driver Chips / Modules
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+
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+### 1. **Texas Instruments DRV8871**
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+- **Continuous Current**: ~3.6 A
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+- **Peak Current**: ~6 A
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+- **Voltage Range**: 6.5V – 45V
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+- **Protections**: Overcurrent, thermal, undervoltage
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+- **Notes**: Simple, robust for your rated current
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+- **Datasheet**: [DRV8871](https://www.ti.com/product/DRV8871)
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+
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+- [[DRV8871-dat]]
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+
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+---
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+
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+### 2. **Pololu G2 High-Power Motor Driver (e.g., 18v17 / 24v13)**
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+- **Continuous Current**: 13–17 A
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+- **Peak Current**: Much higher (survives stall easily)
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+- **Voltage Range**: Up to 24V
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+- **Notes**: Compact breakout board, heatsink recommended
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+- **Link**: [Pololu G2 Motor Drivers](https://www.pololu.com/category/82/motor-drivers)
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+
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+---
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+
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+### 3. **ST VNH5019**
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+- **Continuous Current**: 12 A
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+- **Peak Current**: 30 A
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+- **Voltage Range**: 5.5V – 24V
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+- **Protections**: Current limiting, thermal shutdown, undervoltage
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+- **Notes**: High power, excellent for stall current
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+- **Module**: [Pololu VNH5019 Board](https://www.pololu.com/product/1451)
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+
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+---
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+
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+### 4. ❌ **L298N (Not Recommended)**
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+- **Max Current**: ~2 A
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+- **Very inefficient**, no current protection
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+- **Conclusion**: **Not suitable** for 9 A stall motors
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+
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+- [[L298-dat]]
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+---
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+
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+## ✅ Key Selection Tips
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+- **Heatsink / cooling**: Needed for high current
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+- **PWM support**: For speed control
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+- **Protection features**: Essential for motor safety
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+- **Check voltage range**: Match with your motor power supply
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+
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+## ref
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+
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+- [[dc-gear-motor-dat]] - [[motor-driver-dat]]
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Tech-dat/acturator-dat/motor-driver-dat/motor-driver-dat.md
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@@ -34,11 +34,15 @@
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- [[stepper-dat]]
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-- [[A4988-dat]] - [[TB67H450-dat]] - [[TB6612-dat]] - [[LV8729-dat]]
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+- [[TB67H450-dat]] - [[TB6612-dat]]
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+
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+- [[A4988-dat]]
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+
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+- [[LV8729-dat]]
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- [[L293-dat]] - [[L298-dat]]
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-- [[TI-motor-dat]] - [[DRV8833-dat]] - [[DRV8825-dat]] - [[drv8837-dat]] - [[drv8313-dat]] - [[DRV8871-dat]]
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+- [[TI-motor-dat]] - [[DRV8833-dat]] - [[DRV8825-dat]] - [[drv8837-dat]] - [[drv8313-dat]] - [[DRV8871-dat]] - [[DRV8876-dat]]
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- [[ULN2003-dat]]
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@@ -88,4 +92,6 @@ more options
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## ref
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+- [[motor-dat]]
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+
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- [[FOC-dat]]
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