SLVUCC2 October 2021 MCT8316A
The goal of quick tuning is to get the motor running quickly by populating the recommended resistor values shown in Table 2-1.
Pin number |
Pin name |
Resistor value |
---|---|---|
30 |
RMP_1 |
22 kΩ, ±5% |
31 |
RMP_2 |
Tie to GND |
32 |
LDANGLE |
Tie to GND |
33 |
CONFIG_1 |
62 kΩ, ±5% |
36 |
ILIMIT |
51 kΩ, ±5% |
37 |
CONFIG_2 |
75 kΩ, ±5% |
38 |
CONFIG_3 |
200 kΩ, ±5% |
39 |
SLEW_RATE |
10 kΩ, ±5% |
Table 2-2 shows the default parameter values based on the recommended default resistor values shown in Table 2-1.
Parameter |
Value |
Unit |
---|---|---|
Startup profile |
Medium acceleration |
- |
Motor startup method (MTR_STARTUP) |
Double align |
- |
Align ramp rate (ALIGN_RAMP_RATE) |
500 |
V/s |
CLosed loop acceleration (CL_ACC) |
75 |
V/s |
Open loop duty cycle (OL_DUTY) |
25 |
% |
Open loop acceleration (OL_ACC_A1) |
25 | Hz/s |
Startup brake time (STARTUP_BRK_TIME) | 100 | ms |
Slow first cycle frequency (SLOW_FIRST_CYC_FREQ) |
0.5 |
Hz |
Dynamic degauss (DYN_DEGAUSS_EN) |
Disabled |
- |
Align time (ALIGN_TIME) |
750 |
ms |
Lead angle (LD_ANGLE) |
0 |
deg |
BEMF threshold (BEMF_THRESHOLD) | 700 |
- |
IPD Clock frequency (IPD_CLK_FREQ) |
2000 |
Hz |
PWM output frequency (PWM_FREQ_OUT) | 50 |
kHz |
ZC detection blanking time (TBLANK) |
6 |
µs |
Open loop current (OL_ILIMIT) |
3.33 |
A |
Align current threshold (ALIGN_CURR_THR) |
3.33 |
A |
IPD current threshold (IPD_CURR_THR) |
3.33 |
A |
CSA gain (CSA_GAIN) |
0.15 |
V/A |
CBC current limit (ILIMIT) | 4.67 |
A |
Slew rate (SLEW_RATE) |
50 |
V/µs |
Buck voltage output (BUCK_SEL) |
3.3 |
V |
OCP mode (OCP_MODE) | Retry after 500 ms |
- |
ASR (EN_ASR) | Disabled |
- |
Delay compensation (DELAY_COMP_EN) | Disabled |
- |
OCP level (OCP_LVL) |
15 |
A |
Abnormal speed (ABN_SPEED) |
4000 |
Hz |
Minimum duty (MIN_DUTY) |
5 |
% |