Compact driver for NEMA17, a corrected and improved version of CLN17 V1.0, suitable for 12V and 24V systems with a current of up to 1.4A RMS.
STATUS As of January 2024, the board's functionality has been confirmed, with no problems identified. Firmware is in progress.
Uncompleted firmware: Firmware of CLN17 V1.5 driver is in active development. May contain unforeseen issues.
Potential Design Changes: The design may undergo minor modifications in the future.
No Author Liability: The author bears no responsibility for any damages resulting from incorrect usage, connections, manufacturing faults, or coding errors.
User's Duty: Users must conduct comprehensive tests in their specific environments. Adherence to provided usage guidelines is crucial.
Driver IC:
- ✅ TMC2209 STEP-DIR, UART SW bidirectional communication, Reset + Disable functionality
- ✅ Freewheeling when unpowered
- ✅ Analog Current sensing
Encoder IC:
- ✅ TLE5012 SPI communication
- ✅ TLE5012 through the PCB position sensing (1LSB noise)
Power:
- ✅ Daisy Chain Power connection
- ✅ DCDC stability at voltage range [External: 5.2V-25V, USB: 4.9V-5.5V]
- ✅ ENB CLTR 5V (Power Sink & Source 5V 200mA)
Interfaces:
- ✅ USB communication
- ✅ CTRL connector - UART, I2C, SPI communication (ABZ not tested yet)
- ✅ CAN-Bus IC Shutdown and Logic supply, diff signal generation
- ✅ Expansion connector - UART communication
- ✅ SWD with reset functionality
Peripherals:
- ✅ SW1 & SW2 as button
- ✅ RESET using SW2 as output
- ✅ RGB LED (single color indication)
- ✅ External Precise Clock (10ppm) (HSE)
- Layers: 4
- Minimum Via Hole Size/Via Diameter: 0.25mm/0.41mm
- Minimum track width/spacing: 0.13mm/0.13mm
- Material: FR4
- PCB Thickness: 1mm [preferred]
- PCB Color: Any, but black is more aesthetic.
- PCB Surface Finish: ENIG [preferred]
- Outer/Inner Copper Weight: 1oz/0.5oz
- Via Covering: Plugged [preferred] or Tented
- Board Outline Tolerance: ±0.2mm
- Panelization: optional, but if horizontal connectors used, the gap between boards should be ≥5mm.
- Assembly: Single top side
- Tooling Holes: Already present 4x D1.152mm in the corners of the board. May require modification for specific equipment.
Non-stock Components Note: The design features 3 irreplaceable components: the driver chip, microcontroller, and encoder. Other parts can be replaced with in-stock equivalents that match or surpass the original specs, provided you conduct a schematic review beforehand.
Cost Reduction Note: Eliminate unused components such as the CAN-Bus or CTRL connector to reduce costs, provided you conduct a schematic review beforehand.
If you like the project and want to support its development, you can do so through:
- Ko-fi (preferred for membership subscription and one-time donation) - here, you can sign up for monthly support, or you can make a one-time donation as well!
- Patreon - similar to Ko-fi, but with higher fees.
Don't forget to join creapunk community on Discord for the latest updates and discussions!
Special thanks to JLCPCB for sponsoring the board manufacturing of this design!
