SLVUCD3A November 2021 – August 2022 DRV8328
The DRV8328AEVM has 40 pins with different functions. These pins are interfaced with the LAUNCHXL-F280049C LaunchPad development kit and are mapped appropriately to receive the functionalities of the DRV8328 device. These 40 pins are grouped into 4 ports in respect to the LAUNCHXL-F280049C (J1 to J4). Table 3-5 and Table 3-6 list the interfacing of these ports of the DRV8328AEVM headers J3 and J4.
J3 Pin Number | DRV8328AEVM Function | LAUNCHXL-F280049C Function | Description |
|---|---|---|---|
1 | AVDD (DNP) | +3.3 V | 3.3 V LaunchPad Supply |
2 | +5 V | +5 V | 5 V LaunchPad Supply |
3 | POT_MCU/NC_49C | PGA1/3/5_GND | Not used |
4 | GND | GND | GND connection |
5 | Not used | GPIO13/SCIBRX | Not used |
6 | VSENA | ADCINA5 | Phase A Voltage Sense |
7 | Not used | GPIO40/SCIBTX | Not used |
8 | VSENB | ADCINB0 | Phase B Voltage Sense |
9 | nSLEEP_DFLT | NC | nSLEEP for internal use only. |
10 | VSENC | ADCINC2 | Phase C Voltage Sense |
11 | CTAP | ADCINB3/VDAC | Center tap voltage sense. |
12 | VSENPVDD | ADCINB1 | PVDD Bus Voltage Sense |
13 | Not used | SPIACLK | Not used |
14 | NC_MCU/POT_49C | ADCINB2 | General Purpose pot for MCU (R90) |
15 | nFAULT_DFLT | ADCINC4 | nFAULT for internal use only. |
16 | ISENA | ADCINC0 | LSS current sense |
17 | Not used | GPIO37 | Not used |
18 | Not used | ADCINA9 | Not used |
19 | Not used | GPIO35 | Not used |
20 | VDSLVL/C_TAP | ADCINA1/DACB_OUT | VDSLVL from DAC. C_TAP for internal use only. |
J4 Pin Number | DRV8328AEVM Function | LAUNCHXL-F280049C Function | Description |
|---|---|---|---|
1 | INHA | GPIO10/PWM6A | PWM used to switch Phase A High-side FET |
2 | GND | GND | GND connection |
3 | INLA | GPIO11/PWM6B | PWM used to switch Phase A Low-side FET |
4 | MCU_LED | SPIASTE | Visual feedback for LaunchPad connection. |
5 | INHB | GPIO8/PWM5A | PWM used to switch Phase B High-side FET |
6 | nFAULT_DFLT | NC | nFAULT for internal use only. |
7 | INLB | GPIO9/PWM5B | PWM used to switch Phase B Low-side FET |
8 | Not used | NC | Not used |
9 | INHC | GPIO4/PWM3A | PWM used to switch Phase C High-side FET |
10 | Not used | XRSn | Not used |
11 | INLC | GPIO5/PWM3B | PWM used to switch Phase C Low-side FET |
12 | Not used | SPIASIMO | Not used |
13 | HALLA | GPIO58 | Hall sensor A from motor |
14 | Not used | SPIASOMI | Not used |
15 | nSLEEP_49C | GPIO30 | nSLEEP signal (active low) |
16 | DRVOFF | GPIO39 | Active-high output to disable gate drivers |
17 | Not used | GPIO18*/XCLKOUT | Not used |
18 | HALLB | GPIO23/LED4 | Hall sensor B from motor |
19 | nFAULT_49C/CSAREF | GPIO25 | nFAULT signal (active low) |
20 | HALLC | GPIO59 | Hall sensor C from motor |
There are many resistors that are not populated for internal use only. Ensure the correct resistors are populated so every has signal has only signal path. If multiple signal paths are present, or no signal path is present, the device may not work as intended.