Datasheet A4988 (Allegro) - 8
| Manufacturer | Allegro |
| Description | DMOS Microstepping Driver with Integrated Translator, 1/16th Step Resolution, and Automatic Decay Selection in 28-QFN (4x5) package |
| Pages / Page | 20 / 8 — DMOS Microstepping Driver. A4988. with Translator and Overcurrent … |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
DMOS Microstepping Driver. A4988. with Translator and Overcurrent Protection
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DMOS Microstepping Driver A4988 with Translator and Overcurrent Protection
Slow Mixed Slow Mixed Slow Mixed Slow Mixed Decay Decay Decay Decay Decay Decay Decay Decay Missed Step Voltage on ROSC terminal 2 V/div. Step input 10 V/div. t → , 1 s/div. Figure 2: Missed Steps in Low-Speed Microstepping Mixed Decay No Missed ILOAD 500 mA/div. Steps Step input 10 V/div. t → , 1 s/div. Figure 3: Continuous Stepping Using Automatically-Selected Mixed Stepping (ROSC pin grounded) 8 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com
Slow Mixed Slow Mixed Slow Mixed Slow Mixed Decay Decay Decay Decay Decay Decay Decay Decay Missed Step Voltage on ROSC terminal 2 V/div. Step input 10 V/div. t → , 1 s/div. Figure 2: Missed Steps in Low-Speed Microstepping Mixed Decay No Missed ILOAD 500 mA/div. Steps Step input 10 V/div. t → , 1 s/div. Figure 3: Continuous Stepping Using Automatically-Selected Mixed Stepping (ROSC pin grounded) 8 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com