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DRV8889-Q1 Datasheet(PDF) 51 Page - Texas Instruments |
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DRV8889-Q1 Datasheet(HTML) 51 Page - Texas Instruments |
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51 / 88 page  Table 7-27. CTRL4 Control Register Field Descriptions (continued) Bit Field Type Default Description 0 TW_REP R/W 0b 0b = Overtemperature or undertemperature warning is not reported on the nFAULT line 1b = Overtemperature or undertemperature warning is reported on the nFAULT line 7.6.10 CTRL5 Control Register (address = 0x07) CTRL5 for DRV8889A-Q1 is shown in Figure 7-41 and described in Table 7-28. CTRL5 for DRV8889-Q1 is shown in Figure 7-42 and described in Table 7-29. DRV8889A-Q1 features programable open-load detection time using the OL_TIME [1:0] bits and programmable slow-decay to drive blanking time using the EN_SR_BLANK bit. Read/Write Figure 7-41. CTRL5 Control Register for DRV8889A-Q1 7 6 5 4 3 2 1 0 RSVD STL_LRN EN_STL STL_REP OL_TIME [1:0] EN_SR_BLANK R/W-00b R/W-0b R/W-0b R/W-1b R/W-00b R/W-0b Figure 7-42. CTRL5 Control Register for DRV8889-Q1 7 6 5 4 3 2 1 0 RSVD STL_LRN EN_STL STL_REP RSVD R/W-00b R/W-0b R/W-0b R/W-1b R/W-000b Table 7-28. CTRL5 Control Register Field Descriptions for DRV8889A-Q1 Bit Field Type Default Description 7-6 RSVD R/W 00b Reserved. Should always be '00'. 5 STL_LRN R/W 0b Write '1' to learn stall count for stall detection. This bit automatically returns to '0' when the stall learning process is complete. 4 EN_STL R/W 0b 0b = Stall detection is disabled 1b = Stall detection is enabled 3 STL_REP R/W 1b 0b = Stall detection is not reported on nFAULT 1b = Stall detection is reported on nFAULT 2-1 OL_TIME [1:0] R/W 00b 00b = 200ms (max.) open load detection time 01b = 125ms (max.) open load detection time 10b = 75ms (max.) open load detection time 11b = 3ms (max.) open load detection time 0 EN_SR_BLANK R/W 0b 0b = 500ns slow-decay to drive blanking time 1b = slow-decay to drive blanking will depend on slew rate, shown in Table 7-9. Table 7-29. CTRL5 Control Register Field Descriptions for DRV8889-Q1 Bit Field Type Default Description 7-6 RSVD R/W 00b Reserved. Should always be '00'. www.ti.com DRV8889-Q1 SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 51 Product Folder Links: DRV8889-Q1 |
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