DRV10983-Q1 Datasheet, PDF (58/72 Pages) Texas Instruments – Automotive, Three-Phase, Sensorless BLDC Motor Driver

DRV10983-Q1
SLVSD14 – JUNE 2017
8.5.3.27 CONFIG6 Register (address = 0x95) [reset = 0x00]
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Figure 66. CONFIG6 Register
15
SpdCtrlMd
R/W-0
7
CLoopDis
R/W-0
14
PWMFreq
R/W-0
6
ClsLpAccel[2]
R/W-0
Bit Field
15
SpdCtrlMd
14
PWMFreq
13:12 KtLckThr[1:0]
11
AVSIndEn
10
AVSMEn
9
AVSMMd
8
IPDRlsMd
7
CLoopDis
6:4 ClsLpAccel[2:0]
3:2 DutyCycleLimit[1:0]
1:0 SlewRate[1:0]
13
KtLckThr[1]
R/W-0
12
KtLckThr[0]
R/W-0
11
AVSIndEn
R/W-0
10
AVSMEn
R/W-0
9
AVSMMd
R/W-0
8
IPDRlsMd
R/W-0
5
ClsLpAccel[1]
R/W-0
4
ClsLpAccel[0]
R/W-0
3
2
DutyCycleLimit[ DutyCycleLimit[
1]
0]
R/W-0
R/W-0
1
SlewRate[1]
R/W-0
0
SlewRate[0]
R/W-0
Table 34. CONFIG6 Register Field Descriptions
Type
R/W
Reset
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
Description
Speed input mode
0: Analog input expected at SPEED pin
1: PWM input expected at SPEED pin
PWM Frequency Control
0: PWM frequency = 25 kHz
1: PWM frequency = 50 kHz
Abnormal Kt lock detect threshold
00: Kt_high = 3/2Kt. Kt_low = 3/4Kt
01: Kt_high = 2Kt. Kt_low = 3/4Kt
10: Kt_high = 3/2Kt. Kt_low = 1/2Kt
11: Kt_high = 2Kt. Kt_low = 1/2Kt
Inductive AVS enable. Enabled when high
Mechanical AVS enable. Enabled when high
Mechanical AVS mode
0: AVS to V_CC
1: AVS to 24 V
IPD release mode
0: Brake when inductive release
1: Hi-z when inductive release
0: Transfer to closed loop at Op2ClsThr speed
1: No transfer to closed loop. Keep in open loop
Closed-loop accelerate
000: Immediate change
001: 48 V_CC/s
010: 48 V_CC/s
011: 0.77 V_CC/s
100: 0.37 V_CC/s
101: 0.19 V_CC/s
110: 0.091 V_CC/s
111: 0.045 V_CC/s
Minimum duty-cycle limit
00: Linear down to 5%, then holds at 5% until duty command is
1.5 %; 0 % for duty command below 1.5 %.
01: Linear down to 10%, then holds at 10% until duty command
is 1.5 %; 0 % for duty command below 1.5 %.
10: Linear down to 5%, then holds at 5% until duty command is
1.5 %; 100 % for duty command below 1.5 %.
11: Linear down to 10%, then holds at 10% until duty command
is 1.5 %; 100 % for duty command below 1.5 %.
Slew-rate control for phase node
00: Typical slew rate for V_CC at 12 V = 35 V/μs
01: Typical slew rate for V_CC at 12 V = 50 V/μs
10: Typical slew rate for V_CC at 12 V = 80 V/μs
11: Typical slew rate for V_CC at 12 V = 120 V/μs
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