Figure 4-4. 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
SLEW
Slew rate
Phase pin slew rate switching low
to high (10-90%) and high to low
(90-10%)
R38/R43
Tied to AGND
25 V/µs
Hi-Z
50 V/µs
47 kΩ to AVDD
125 V/µs
Tied to AVDD
200 V/µs
Hardware and Software Overview
SLVUBZ9B – DECEMBER 2020 – REVISED AUGUST 2021
DRV8316xEVM Evaluation Module
11
Copyright © 2021 Texas Instruments Incorporated
