Low Power Micro Stepper Motor Driver Reference Design Using FRAM
Description
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.
Features
- 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: respectivelyBeneficial motor feedback produced by the bi-directional INA199 current shunt monitor featuring low offset and minimal errorMotor states left uninterrupted by power cycles due to MSP FRAM technologyEnergyTrace++ technology used to measure and optimize low power consumptionJava-based GUI included allow the user to design a repetitive 24-hour motor operation schedule by employing the MSP RTCTested 20-pin Boosterpack hardware design that can be utilized on any TI LaunchPad
Applications
- Digital still camera
- Electronic smart lock
- Home printer
Product Categories
- MSP430 microcontrollers