DRV10987 Datasheet, PDF (59/69 Pages) Texas Instruments – DRV10987 12- to 24-V, Three-Phase, Sensorless BLDC Motor Driver

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8.5.3.27 CONFIG7 Register (address = 0x96) [reset = 0x00]
DRV10987
SLVSE89 – AUGUST 2017
Figure 65. CONFIG7 Register
15
IPDAdvcAg[1]
R/W-0
7
Reserved
R-0
14
IPDAdvcAg[0]
R/W-0
6
CtrlCoef[1]
R/W-0
Bit
15:14
Field
IPDAdvcAg[1:0]
13:10 IPDCurrThr[3:0]
9:8 IPDClk[1:0]
7
Reserved
6:5 CtrlCoef[1:0]
4:0 DeadTime[4:0]
13
IPDCurrThr[3]
R/W-0
12
IPDCurrThr[2]
R/W-0
11
IPDCurrThr[1]
R/W-0
10
IPDCurrThr[0]
R/W-0
9
IPDClk[1]
R/W-0
8
IPDClk[0]
R/W-0
5
CtrlCoef[0]
R/W-0
4
DeadTime[4]
R/W-0
3
DeadTime[3]
R/W-0
2
DeadTime[2]
R/W-0
1
DeadTime[1]
R/W-0
0
DeadTime[0]
R/W-0
Table 33. CONFIG7 Register Field Descriptions
Type
R/W
Reset
00
R/W
0x0
R/W
00
R
0
R/W
00
R/W
0x0
Description
Advance angle after inductive sense.
00: 30 degrees
01: 60 degrees
10: 90 degrees
11: 120 degrees
IPD (inductive sense) current threshold
0000: No IPD function. Align and go
0001: 0.4-A current threshold.
0010 to 1111: 0.2 A × (n + 1) current threshold.
Inductive sense clock
00: IPD clock 12 Hz; IPD measurement resolution = 2.56 µs
01: IPD clock = 24 Hz; IPD measurement resolution = 1.28 µs
10: IPD clock = 47 Hz; IPD measurement resolution = 0.64 µs
11: IPD clock = 95 Hz; IPD measurement resolution = 0.32 µs
Do not access this bit.
SCORE control constant
00: 0.25
01: 0.5
10: 0.75
11: 1
Driver dead time
(n + 1) × 40 ns
40 ns to 1.280 μs
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