DRV8824-Q1_15 Datasheet, PDF (15/30 Pages) Texas Instruments – DRV8824-Q1 Automotive Motor Controller IC

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DRV8824-Q1
SLVSCH0 – APRIL 2014
Table 2. Relative Current and Step Directions (continued)
1/32 STEP 1/16 STEP 1/8 STEP 1/4 STEP 1/2 STEP
93
47
24
94
95
48
96
97
49
25
13
7
98
99
50
100
101
51
26
102
103
52
104
105
53
27
14
106
107
54
108
109
55
28
110
111
56
112
113
57
29
15
8
114
115
58
116
117
59
30
118
119
60
120
121
61
31
16
122
123
62
124
125
63
32
126
127
64
128
FULL
STEP
70%
4
WINDING
CURRENT
A
–20%
–15%
–10%
–5%
0%
5%
10%
15%
20%
24%
29%
34%
38%
43%
47%
51%
56%
60%
63%
67%
71%
74%
77%
80%
83%
86%
88%
90%
92%
94%
96%
97%
98%
99%
100%
100%
WINDING
CURRENT
B
–98%
–99%
–100%
–100%
–100%
–100%
–100%
–99%
–98%
–97%
–96%
–94%
–92%
–90%
–88%
–86%
–83%
–80%
–77%
–74%
–71%
–67%
–63%
–60%
–56%
–51%
–47%
–43%
–38%
–34%
–29%
–24%
–20%
–15%
–10%
–5%
ELECTRICAL
ANGLE
259
262
264
267
270
273
276
278
281
284
287
290
293
295
298
301
304
307
309
312
315
318
321
323
326
329
332
335
338
340
343
346
349
352
354
357
8.3.5 nRESET, nENBLE and nSLEEP Operation
The nRESET terminal, when driven active low, resets internal logic, and resets the step table to the home
position. It also disables the H-bridge drivers. The STEP input is ignored while nRESET is active.
The nENBL terminal is used to control the output drivers and enable/disable operation of the indexer. When
nENBL is low, the output H-bridges are enabled, and rising edges on the STEP terminal are recognized. When
nENBL is high, the H-bridges are disabled, the outputs are in a high-impedance state, and the STEP input is
ignored.
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