SNLU291B March   2021  – August 2022 MCT8316Z

 

  1.   Abstract
  2.   Trademarks
  3. 1Cautions and Warnings
  4. 2Introduction
  5. 3Quick Start Guide
  6. 4Hardware and Software Overview
    1. 4.1 Hardware Connections Overview – MCT8316ZTEVM
    2. 4.2 Connection Details
    3. 4.3 MSP430FR2355 Microcontroller
    4. 4.4 LED Lights
    5. 4.5 User-Configurable Settings
    6. 4.6 Hardware Variant Settings
    7. 4.7 MCT8316Z0R Compatibility
  7. 5Hardware Setup
  8. 6Firmware and GUI Application
    1. 6.1 Downloading Code Composer Studio and Importing GUI Code
    2. 6.2 Using the eZ-FET to Program the MSP430FR2355
    3. 6.3 Importing GUI into GUI Composer
    4. 6.4 MCT8316ZTEVM GUI
  9. 7Schematics
    1. 7.1  Main Supply and Pi Filter
    2. 7.2  Connectors and Interface
    3. 7.3  USB to UART
    4. 7.4  MCU Programming and Debug
    5. 7.5  MSP430FR2355 MCU
    6. 7.6  MCT8316ZT 3-Phase Sensored Trapezoidal Integrated Driver
    7. 7.7  3.3V Buck Regulator
    8. 7.8  Status LEDs
    9. 7.9  Hardware Variant Settings
    10. 7.10 Switches and PWM Input
  10. 8Revision History

4.5 User-Configurable Settings

The MCT8316ZTEVM includes a variety of user-selectable jumpers, switches, and resistors on the entirety of the evaluation board to configure settings. Table 4-2 summarizes all of these configurable settings.

Table 4-2 Description of User-Selectable Settings on MCT8316ZTEVM (Default in Bold)
DesignatorSetting NameDescriptionLayerPositionFunction
L1, L2, R13.3-V Buck InductorUser populates L1, L2, or R1 to choose switching component for buck regulatorTopL1 = 47 μH InductorInductor Mode
BottomL2 = 22 μH Inductor Mode
BottomR1 = 22 ΩResistor Mode
J53V3_SELSelect 3.3 V for MCU powerTopJ5 = 3V3EXTExternal
J5 = 3V3COMFrom FTDI (30 mA)
J35V_SELSelect 5 V for FTDI powerTopJ3 = 5V_EXT External
J3 = 5V_USBFrom USB power (500 mA)
J1PWM_SELSelects PWM sourceTopJ1 = PWM_EXTExternal PWM
J1 = PWM_MSPPWM from MSP430
J12HALL_PWR_SELSelects Hall power sourceTopJ12 = HALL_EXTExternal Hall power
J12 = 3.3 VHall power from VBK = 3.3 V
J8HPA pullupEnables pullup on Hall positive A (HPA)TopJ8 is insertedPullup, use for Digital Hall inputs
J8 is removedFloating, use for Analog Hall inputs
J9HPB pullupEnables pullup on Hall positive B (HPA)TopJ9 is insertedPullup, use for Digital Hall inputs
J9 is removedFloating, use for Analog Hall inputs
J10HPC pullupEnables pullup on Hall positive C (HPC)TopJ10 is insertedPullup, use for Digital Hall inputs
J10 is removedFloating, use for Analog Hall inputs
J6MSP to MCT Shunt jumper bridgeConnects signals from MCU to MCT8316Z when jumpers are insertedTopFGOUTMSP_FGOUT
PWMMSP_PWM
STEMSP_STE
SCKMSP_SCK
SIMOMSP_SIMO
SOMIMSP_SOMI
nFAULTMSP_nFAULT
nSLEEPMSP_nSLEEP
AGNDAGND

S1

BRAKETurns on all low-side MOSFETsTopLeftBrake enabled
RightBrake disabled
S2DIRControls direction of motorTopLeftClockwise

Right

Counterclockwise
S3DRVOFFDisables gate driversTopLeftMCT8316Z enabled
RightMCT8316Z disabled
R10 and R11ILIMResistor divider that sets the cycle-by-cycle current limit (ILIM voltage of AVDD to AVDD - 0.4 sets limit proportionally from 0 to 8 A)Top16.2 kΩ (R10)ILIM = 1.25 V = 8-A limit
10 kΩ (R11)