Low Power Micro Stepper Motor Driver Reference Design Using FRAM TIDM-LPSM (ACTIVE)

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Key Document


Controlled by the  MSP-EXP430FR5969 FRAM LaunchPad, this 20-pin boosterpack utilizes the DRV8836 motor driver for operating low-voltage stepper motors with minimal power consumption to better optimize battery life.  Micro stepping logic provides for smooth motor steps, a INA199 current shunt monitor provides a valuable motor status feedback loop, and MSP430FR5969 FRAM technology allows for saved motor states in the event of power supply disconnection.



  • Along with the DRV8836 sleep state, the MSP430FR5969 MCU’s LPM3 and LPM3.5 modes provide longer battery discharge times with average current consumption of 20 μA and 10 μA, respectively
  • Beneficial motor feedback produced by the bi-directional INA199 current shunt monitor featuring low offset and minimal error
  • Motor states left uninterrupted by power cycles due to MSP FRAM technology
  • EnergyTrace++ technology used to measure and optimize low power consumption
  • Java-based GUI included allow the user to design a repetitive 24-hour motor operation schedule by employing the MSP RTC
  • Tested 20-pin Boosterpack hardware design that can be utilized on any TI LaunchPad

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    TI Devices (3)

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    Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
    DRV8836  1.5A Low Voltage Stepper or Single/Dual Brushed DC Motor Driver (PWM or PH/EN Ctrl)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
    INA199  26V, bi-directional, zero-drift, low-/high-side, voltage output current sense amplifier  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
    MSP430FR5969  MSP430FR5969 16 MHz Ultra-Low-Power Microcontroller featuring 64 KB FRAM, 2 KB SRAM, 40 IO  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules

    CAD/CAE symbols

    Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
    DRV8836 Download Download
    INA199 Download Download
    Download Download
    MSP430FR5969 Download Download

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    Technical Documents

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    User guides (1)
    Title Type Size (KB) Date
    PDF 1583 19 Jun 2015
    Design files (6)
    Title Type Size (KB) Date
    ZIP 40 13 Oct 2015
    ZIP 280 13 Oct 2015
    PDF 51 13 Oct 2015
    PDF 118 13 Oct 2015
    PDF 204 13 Oct 2015
    PDF 34 13 Oct 2015
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    Software (1)

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