Texas Instruments TMS320F280049C, User Manual

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4.3.1 DRV8316T Compatibility
The DRV8316REVM is compatible with the DRV8316T (H/W variant) as the featured motor driver IC to spin a
three-phase Brushless-DC motor. The DRV8316T replaces the SPI settings with five specific pin settings
(MODE, SLEW, OCP/SR, GAIN, and VSEL_BK) that can be adjusted through resistor dividers.
When using the DRV8316T, the SPI enable resistors in the “Depop. if DRV8316T” silk screen box are to be
depopulated (R9-R12) and the resistor dividers in the “Hardware Variant Resistors” silk screen box are to be
populated (R37-R46) with the desired settings.
Figure 4-7 shows this setup.
Table 4-3 shows the status of populated and DNP resistors for the two compatible DRV8316x variants. Table 4-4
shows the user-adjustable resistor divider settings when using the DRV8316T. R37-R41 resistors tie to AVDD
and R42-R46 tie to AGND. The defaults of the two tables are in bold.
Table 4-3. Status of Resistors for DRV8316R and DRV8316T Variants (defaults
in bold)
Device Variant R9-R12 Status R37-R46 Status
DRV8316R SPI Populated DNP
DRV8316T Hardware DNP User adjustable
Figure 4-7. Resistor Divider Settings (R37-R46) and Resistors to Disable SPI (R9-R12)
Table 4-4. User-Adjustable Resistor Divider Settings for DRV8316T Variant (defaults in bold)
Setting Name Description Resistors
(AVDD/ AGND) Hardware Setting
VSEL_BK V
BK
Buck regulator average voltage
(L
BK
= 47 or 22 μH, C
BK
= 22 μF)
R40/R45 Tied to AGND 3.3 V
Hi-Z 5.0 V
47 kΩ to AVDD 4.0 V
Tied to AVDD 5.7 V
MODE PWM Control Mode Selects the PWM control mode
type
R37/R42 Tied to AGND 6 × PWM
Hi-Z 6 × PWM with
Current Limit
47 kΩ to AVDD 3 × PWM
Tied to AVDD 6× PWM with
Current Limit
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SLVUBZ9A – DECEMBER 2020 – REVISED FEBRUARY 2021
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DRV8316REVM Evaluation Module 11
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