DRV8805 Datasheet, PDF (8/16 Pages) Texas Instruments – UNIPOLAR STEPPER MOTOR DRIVER IC

DRV8805
SLVSAW3A – JULY 2011 – REVISED JULY 2011
Table 3. 2-Phase Excitation (Full-Step)
Function
Reset
CW
CW
CW
CW to home
CCW
CCW
CCW
CCW to home
Hold
Step
RESET
DIR
1
1
X
2
0
1
3
0
1
4
0
1
1
0
1
4
0
0
3
0
0
2
0
0
1
0
0
X
0
X
STEP
X
↑
↑
↑
↑
↑
↑
↑
↑
↑
nHOME
0
1
1
1
0
1
1
1
0
no chg
OUT1
ON
ON
OFF
OFF
ON
OFF
OFF
ON
ON
no chg
OUT2
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
no chg
Function
Reset
CW
CW
CW
CW
CW
CW
CW
CW to home
CCW
CCW
CCW
CCW
CCW
CCW
CCW
CCW to home
Hold
Step
1
2
3
4
5
6
7
8
1
8
7
6
5
4
3
2
1
X
Table 4. 1-2-Phase Excitation (Half-Step)
RESET DIR
1
X
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
STEP
X
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
nHOME
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
0
no chg
OUT1
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
no chg
OUT2
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
no chg
Function
Reset
CW
CW
CW
CW to home
CCW
CCW
CCW
CCW to home
Hold
Step
1
2
3
4
1
4
3
2
1
X
Table 5. 1-Phase Excitation (Wave Drive)
RESET DIR
1
X
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
X
STEP
X
↑
↑
↑
↑
↑
↑
↑
↑
↑
nHOME
0
1
1
1
0
1
1
1
0
no chg
OUT1
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
no chg
OUT2
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
no chg
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OUT3
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
no chg
OUT4
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
no chg
OUT3
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
no chg
OUT4
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
no chg
OUT3
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
no chg
OUT4
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
no chg
8
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