Texas Instruments DRV8311HEVM, User Manual

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4.4.5 Interfacing DRV8311HEVM and LAUNCHXL-F280049C LaunchPad
The DRV8311HEVM has 40 pins with different functions. These pins are interfaced with the
LAUNCHXLF280049C LaunchPad development kit and are mapped appropriately to receive the functionalities
of the DRV8311H device. These 40 pins are grouped into 4 ports in respect to the LAUNCHXL-F280049C (J1 to
J4).
Table 4-5 and Table 4-6 list the interfacing of these ports of the DRV8311HEVM headers J3 and J4.
Table 4-5. Connections for Header J1 on DRV8311HEVM (DNP in bold)
J1 Pin Number DRV8311HEVM Function LAUNCHXL-F280049C Function Description
1 3.3 VBK +3.3 V 3.3 V LaunchPad Supply
2 5 V supply +5 V 5 V Boost from LaunchPad
3 Not used PGA1/3/5_GND Not used
4 AGND GND GND connection
5 Not used GPIO13/SCIBRX Not used
6 VSENA ADCINA5 Phase A Voltage Sense
7 HALLC GPIO40/SCIBTX Hall sensor C from motor
8 VSENB ADCINB0 Phase B Voltage Sense
9 nSLEEP (DNP) NC For internal use only
10 VSENC ADCINC2 Phase C Voltage Sense
11 Not used ADCINB3/VDAC Not used
12 VSENVM ADCINB1 VM Bus Voltage Sense
13 SCLK SPIACLK SPI Clock (DRV8311S and
DRV8311P only)
14 ISENA ADCINB2 Phase A low side Current Sense
15 nFAULT (DNP) ADCINC4 For internal use only
16 ISENB ADCINC0 Phase B low side Current Sense
17 nSLEEP GPIO37 Active-low input to sleep pin
18 ISENC ADCINA9 Phase C low side Current Sense
19 nFAULT GPIO35 Active-low output from fault pin
20 C_TAP ADCINA1 ADC for Center Tap sensing
Table 4-6. Connections for Header J2 on DRV8311HEVM
J2 Pin Number DRV8311HEVM Function LAUNCHXL-F280049C Function Description
1 INHA GPIO10/PWM6A PWM used to switch High-side
FET of Phase A (DRV8311H and
DRV8311S only)
2 AGND GND GND connection
3 INLA GPIO11/PWM6B PWM used to switch Low-side
FET of Phase A (DRV8311H and
DRV8311S only)
4 nSCS SPIASTE SPI active-low chip select
(DRV8311S only)
5 INHB GPIO8/PWM5A PWM used to switch High-side
FET of Phase B (DRV8311H and
DRV8311S only)
6 Not used NC Not used
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DRV8311HEVM User's Guide 13
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