Datasheet

DRV8805
SLVSAW3C –JULY 2011–REVISED MARCH 2012 www.ti.com
Table 3. 2-Phase Excitation (Full-Step)
Function Step RESET DIR STEP nHOME OUT1 OUT2 OUT3 OUT4
Reset 1 1 X X 0 ON OFF OFF ON
CW 2 0 1 ↑ 1 ON ON OFF OFF
CW 3 0 1 ↑ 1 OFF ON ON OFF
CW 4 0 1 ↑ 1 OFF OFF ON ON
CW to home 1 0 1 ↑ 0 ON OFF OFF ON
CCW 4 0 0 ↑ 1 OFF OFF ON ON
CCW 3 0 0 ↑ 1 OFF ON ON OFF
CCW 2 0 0 ↑ 1 ON ON OFF OFF
CCW to home 1 0 0 ↑ 0 ON OFF OFF ON
Hold X 0 X ↑ no chg no chg no chg no chg no chg
Table 4. 1-2-Phase Excitation (Half-Step)
Function Step RESET DIR STEP nHOME OUT1 OUT2 OUT3 OUT4
Reset 1 1 X X 0 ON OFF OFF OFF
CW 2 0 1 ↑ 1 ON ON OFF OFF
CW 3 0 1 ↑ 1 OFF ON OFF OFF
CW 4 0 1 ↑ 1 OFF ON ON OFF
CW 5 0 1 ↑ 1 OFF OFF ON OFF
CW 6 0 1 ↑ 1 OFF OFF ON ON
CW 7 0 1 ↑ 1 OFF OFF OFF ON
CW 8 0 1 ↑ 1 ON OFF OFF ON
CW to home 1 0 1 ↑ 0 ON OFF OFF OFF
CCW 8 0 0 ↑ 1 ON OFF OFF ON
CCW 7 0 0 ↑ 1 OFF OFF OFF ON
CCW 6 0 0 ↑ 1 OFF OFF ON ON
CCW 5 0 0 ↑ 1 OFF OFF ON OFF
CCW 4 0 0 ↑ 1 OFF ON ON OFF
CCW 3 0 0 ↑ 1 OFF ON OFF OFF
CCW 2 0 0 ↑ 1 ON ON OFF OFF
CCW to home 1 0 0 ↑ 0 ON OFF OFF OFF
Hold X 0 X ↑ no chg no chg no chg no chg no chg
Table 5. 1-Phase Excitation (Wave Drive)
Function Step RESET DIR STEP nHOME OUT1 OUT2 OUT3 OUT4
Reset 1 1 X X 0 ON OFF OFF OFF
CW 2 0 1 ↑ 1 OFF ON OFF OFF
CW 3 0 1 ↑ 1 OFF OFF ON OFF
CW 4 0 1 ↑ 1 OFF OFF OFF ON
CW to home 1 0 1 ↑ 0 ON OFF OFF OFF
CCW 4 0 0 ↑ 1 OFF OFF OFF ON
CCW 3 0 0 ↑ 1 OFF OFF ON OFF
CCW 2 0 0 ↑ 1 OFF ON OFF OFF
CCW to home 1 0 0 ↑ 0 ON OFF OFF OFF
Hold X 0 X ↑ no chg no chg no chg no chg no chg
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