DRV3202-Q1_15 Datasheet, PDF (10/39 Pages) Texas Instruments – 3-Phase Brushless Motor Driver

DRV3202-Q1
SLVSBJ4A – OCTOBER 2012 – REVISED DECEMBER 2012
T_lead T_pw
T_pw
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T_lag
T_wait
CS
SCK
DIN
DOUT Hi-Z
MSB D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 LSB
T_h
T_su
MSB D14 D13 D12 D11 D10 D9 D8 ^{D7 D6} D5 D4 D3 D2 D1 LSB
T_en
T_del
T_dis
Figure 6. SPI AC Timing Definition
Hi-Z
Table 1. SPI Bit Map (DIN)
ITEM
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
COMMAND1
0
0
0
0
0
1
–
–
SHM
SRT
–
–
–
–
–
–
COMMAND2
0
0
0
0
1
0
–
–
AG1
AG0
–
–
–
–
–
–
COMMAND3
0
0
0
0
1
1
–
–
–
–
–
–
–
–
–
–
DIAG_READ1
0
0
1
0
0
0
–
–
–
–
–
–
–
–
–
–
DIAG_READ2
0
1
0
0
0
0
–
–
–
–
–
–
–
–
–
–
DIAG_READ3
0
1
1
0
0
0
–
–
–
–
–
–
–
–
–
–
In Table 1, the B15–B10 are the control bits, so the each command depends on them (listed below).
1. B15-B10 = 0 0 0 0 0 1
These are the commands:
1) Phase AMP Sampling Hold Mode (B7 bit)
MM0: OFF (through) (INITIAL VALUE)
MM1: ON (use sample hold mode)
2) Phase AMP Short Mode [Short_Mode] (B6 bit)
MM0: OFF (no calibration) (INITIAL VALUE)
MM1: ON (use calibration mode)
2. B15-B10 = 0 0 0 0 1 0
These are the commands:
1) Phase AMP Gain (B7 bit and B6 bit)
MMB7:0 B6:0; Gain x1 (INITIAL VALUE)
MMB7:0 B6:1; Gain x2
MMB7:1 B6:0; Gain x3
MMB7:1 B6:1; Gain x4
3. B15-B10 = 0 0 0 0 1 1
Not used
4. B15-B10 = 0 0 1 0 0 0
This command is to read the diagnosis of the current regulator,
SPI communication, overvoltage detection, and input diagnosis.
5. B15-B10 = 0 1 0 0 0 0
This command is to read the diagnosis of SPI communication.
6. B15-B10 = 0 1 1 0 0 0
Not used
10
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