3D Printer Controller (12V)
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This design is a complete system for controlling 3-axis, single extruder-based 3D printers. The system is managed by the MSP430F5529 LaunchPad and utilizes the DRV8846 for precision stepper motor control. The CSD18534Q5A is used as a low-side switch for the hot bed heater, extruder heater, and cooling fan. The DRV5033  Hall Sensor acts as a contactless limit switch.

  • Complete 3D printer controller with MCU, stepper drivers, heater outputs, sensor inputs, and SD card slot.
  • Precise stepper motor current regulation using DRV8846 adaptive decay
  • Hall sensor limit switches are immune to contaminants and never wear out
  • High-current heater outputs from the CSD18534Q5A with low 7.8 mΩ Rds(ON)
  • Powered from a single 12V supply
  • System has been fully tested and proven

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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18534Q5A  60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 9.8 mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
DRV5033  High voltage (up to 38V), high bandwidth (up to 30 kHz) omnipolar switch  Magnetic sensors  Sample & Buy View Design Kits & Evaluation Modules
DRV8846  18-V, 1.4-A bipolar stepper motor driver with 1/32 microstepping and smart tune adaptive decay  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5529  25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18534Q5A VSONP (DQJ)| 8 Download
DRV5033 Download Download
DRV8846 Download Download
MSP430F5529 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 16447 25 Nov 2014
White paper (1)
Title Type Size (KB) Date
PDF 859 01 Nov 2020
Design files (4)
Title Type Size (KB) Date
ZIP 2751 25 Nov 2014
PDF 301 25 Nov 2014
PDF 228 25 Nov 2014
PDF 140 25 Nov 2014

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