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A4988 Datasheet(PDF) 17 Page - Allegro MicroSystems |
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A4988 Datasheet(HTML) 17 Page - Allegro MicroSystems |
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17 / 19 page  DMOS Microstepping Driver with Translator and Overcurrent Protection A4988 17 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 4988-DS Table 2. Step Sequencing Settings Home microstep position at Step Angle 45º; DIR = H Full Step # Half Step # 1/4 Step # 1/8 Step # 1/16 Step # Phase 1 Current [% ItripMax] (%) Phase 2 Current [% ItripMax] (%) Step Angle (º) Full Step # Half Step # 1/4 Step # 1/8 Step # 1/16 Step # Phase 1 Current [% ItripMax] (%) Phase 2 Current [% ItripMax] (%) Step Angle (º) 1121 100.00 0.00 0.0 5 9 17 33 –100.00 0.00 180.0 2 99.52 9.80 5.6 34 –99.52 –9.80 185.6 2 3 98.08 19.51 11.3 18 35 –98.08 –19.51 191.3 4 95.69 29.03 16.9 36 –95.69 –29.03 196.9 2 3 5 92.39 38.27 22.5 10 19 37 –92.39 –38.27 202.5 6 88.19 47.14 28.1 38 –88.19 –47.14 208.1 4 7 83.15 55.56 33.8 20 39 –83.15 –55.56 213.8 8 77.30 63.44 39.4 40 –77.30 –63.44 219.4 12359 70.71 70.71 45.0 3 6 11 21 41 –70.71 –70.71 225.0 10 63.44 77.30 50.6 42 –63.44 –77.30 230.6 6 11 55.56 83.15 56.3 22 43 –55.56 –83.15 236.3 12 47.14 88.19 61.9 44 –47.14 –88.19 241.9 4 7 13 38.27 92.39 67.5 12 23 45 –38.27 –92.39 247.5 14 29.03 95.69 73.1 46 –29.03 –95.69 253.1 8 15 19.51 98.08 78.8 24 47 –19.51 –98.08 258.8 16 9.80 99.52 84.4 48 –9.80 –99.52 264.4 3 5 9 17 0.00 100.00 90.0 7 13 25 49 0.00 –100.00 270.0 18 –9.80 99.52 95.6 50 9.80 –99.52 275.6 10 19 –19.51 98.08 101.3 26 51 19.51 –98.08 281.3 20 –29.03 95.69 106.9 52 29.03 –95.69 286.9 6 11 21 –38.27 92.39 112.5 14 27 53 38.27 –92.39 292.5 22 –47.14 88.19 118.1 54 47.14 –88.19 298.1 12 23 –55.56 83.15 123.8 28 55 55.56 –83.15 303.8 24 –63.44 77.30 129.4 56 63.44 –77.30 309.4 2 4 7 13 25 –70.71 70.71 135.0 4 8 15 29 57 70.71 –70.71 315.0 26 –77.30 63.44 140.6 58 77.30 –63.44 320.6 14 27 –83.15 55.56 146.3 30 59 83.15 –55.56 326.3 28 –88.19 47.14 151.9 60 88.19 –47.14 331.9 8 15 29 –92.39 38.27 157.5 16 31 61 92.39 –38.27 337.5 30 –95.69 29.03 163.1 62 95.69 –29.03 343.1 16 31 –98.08 19.51 168.8 32 63 98.08 –19.51 348.8 32 –99.52 9.80 174.4 64 99.52 –9.80 354.4 |
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