DRV8320_17 Datasheet, PDF (57/89 Pages) Texas Instruments – 6 to 60-V Three-Phase Smart Gate Driver

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DRV8320, DRV8320R
DRV8323, DRV8323R
SLVSDJ3A – FEBRUARY 2017 – REVISED APRIL 2017
8.6.2.4 OCP Control Register (address = 0x05h)
The OCP control register is shown in Figure 49 and described in Table 19.
Register access type: Read/Write
Figure 49. OCP Control Register
10
TRETRY
R/W-0b
9
8
DEAD_TIME
R/W-00b
Bit Field
10
TRETRY
9-8 DEAD_TIME
7-6 OCP_MODE
5-4 OCP_DEG
3-0 VDS_LVL
7
6
5
4
3
2
1
0
OCP_MODE
OCP_DEG
VDS_LVL
R/W-01b
R/W-01b
R/W-1001b
Table 19. OCP Control Field Descriptions
Type
R/W
R/W
R/W
R/W
R/W
Default
0b
01b
01b
01b
1001b
Description
0b = VDS_OCP and SEN_OCP retry time is 4 ms
1b = VDS_OCP and SEN_OCP retry time is 50 µs
00b = 50-ns dead time
01b = 100-ns dead time
10b = 200-ns dead time
11b = 400-ns dead time
00b = Overcurrent causes a latched fault
01b = Overcurrent causes an automatic retrying fault
10b = Overcurrent is report only but no action is taken
11b = Overcurrent is not reported and no action is taken
00b = Overcurrent deglitch of 2 µs
01b = Overcurrent deglitch of 4 µs
10b = Overcurrent deglitch of 6 µs
11b = Overcurrent deglitch of 8 µs
0000b = 0.06 V
0001b = 0.13 V
0010b = 0.2 V
0011b = 0.26 V
0100b = 0.31 V
0101b = 0.45 V
0110b = 0.53 V
0111b = 0.6 V
1000b = 0.68 V
1001b = 0.75 V
1010b = 0.94 V
1011b = 1.13 V
1100b = 1.3 V
1101b = 1.5 V
1110b = 1.7 V
1111b = 1.88 V
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