Datasheet

DRV2605
SLOS825B DECEMBER 2012REVISED JANUARY 2014
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Sustain Time Offset, Positive (Address: 0x0E)
Bit 7 6 5 4 3 2 1 0
Function SPT[7] SPT[6] SPT[5] SPT[4] SPT[3] SPT[2] SPT[1] SPT[0]
Type R/W R/W R/W R/W R/W R/W R/W R/W
Default 0 0 0 0 0 0 0 0
SPT[7:0] Adds a time offset to the positive sustain portion of the library waveforms. Some motors have
faster/slower response time than others, so this register allows the user to add or take away
positive sustain time from the library waveforms. Any positive voltage value other than the
overdrive portion will be considered a sustain positive value. The offset is interpreted as two’s
complement, so the time offset may be positive or negative.
Sustain Time Positive Offset (ms) = SPT[7:0] × 5
Sustain Time Offset, Negative (Address: 0x0F)
Bit 7 6 5 4 3 2 1 0
Function SNT[7] SNT[6] SNT[5] SNT[4] SNT[3] SNT[2] SNT[1] SNT[0]
Type R/W R/W R/W R/W R/W R/W R/W R/W
Default 0 0 0 0 0 0 0 0
SNT[7:0] Adds a time offset to the negative sustain portion of the library waveforms. Some motors have
faster/slower response time than others, so this register allows the user to add or take away
negative sustain time from the library waveforms. Any negative voltage value other than the
overdrive portion will be considered a sustain negative value. The offset is interpreted as two’s
complement, so the time offset may be positive or negative.
Sustain Time Negative Offset (ms) = SNT[7:0] × 5
Brake Time Offset (Address: 0x10)
Bit 7 6 5 4 3 2 1 0
Function BRT[7] BRT[6] BRT[5] BRT[4] BRT[3] BRT[2] BRT[1] BRT[0]
Type R/W R/W R/W R/W R/W R/W R/W R/W
Default 0 0 0 0 0 0 0 0
BRT[7:0] Adds a time offset to the braking portion of the library waveforms. Some motors require more
braking time than others, so this register allows the user to add or take away brake time from the
library waveforms. The most negative voltage value in the library waveform is automatically
determined to be the braking portion. This register will only be useful in open loop mode. Braking is
automatic for closed loop mode. The offset is interpreted as two’s complement, so the time offset
may be positive or negative.
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