A3988SJP-T Allegro Microsystems Inc, A3988SJP-T Datasheet
A3988SJP-T
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A3988SJP-T Summary of contents
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Quad DMOS Full Bridge PWM Motor Driver Features and Benefits ▪ output rating ▪ 4 full bridges ▪ Dual stepper motor driver ▪ High current outputs ▪ 3.3 and 5 V compatible logic supply ▪ Synchronous rectification ▪ ...
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... A3988 Selection Guide Part Number A3988SEV-T 36 pin QFN with exposed thermal pad A3988SEVTR-T 36 pin QFN with exposed thermal pad A3988SJP-T 48 pin LQFP with exposed thermal pad Absolute Maximum Ratings Characteristic Symbol Load Supply Voltage V BB Logic Supply Voltage V DD Output Current ...
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A3988 VDD OSC PHASE1 I01 I11 PHASE2 I02 I12 Sense1 VREF1 3 VREF2 3 Sense2 PHASE3 I03 I13 PHASE4 I04 I14 Sense3 VREF3 3 VREF4 3 Sense4 Quad DMOS Full Bridge PWM Motor Driver Functional Block Diagram 0.1 μF 0.1 ...
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A3988 1 ELECTRICAL CHARACTERISTICS , valid at T Characteristics Load Supply Voltage Range Logic Supply Voltage Range VDD Supply Current Output On Resistance V , Outputs f Output Leakage VBB Supply Current Control Logic Logic Input Voltage Logic Input Current ...
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A3988 The A3988 is designed to operate two Device Operation stepper motors, four DC motors, or one stepper and two DC motors. The currents in each of the output full-bridges, all N-channel DMOS, are regulated with fixed off-time pulse width ...
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A3988 When a PWM-off cycle is Synchronous Rectification triggered by an internal fixed off-time cycle, load current will recirculate. The A3988 synchronous rectification feature will turn on the appropriate MOSFETs during the current decay, and effec- tively short out the ...
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A3988 100.0 66.7 Phase 1 0 (%) –66.7 –100.0 100.0 66.7 Phase 2 0 (%) –66.7 –100.0 Full step 2 phase Modified full step 2 phase Figure 3. Step Sequencing for Full-Step Increments. Quad DMOS Full Bridge PWM Motor Driver ...
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A3988 100.0 66.7 33.3 Phase 1 0 (%) –33.3 –66.7 –100.0 100.0 66.7 33.3 Phase 2 0 (%) –33.3 –66.7 –100.0 Step Sequencing Settings Full 1 Denotes ...
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A3988 Motor Configurations For applications that require either a stepper/DC motor driver or dual DC motor driver, Allegro offers the A3989 and A3995. These devices are offered in the same 36 pin QFN package as the A3988. The DC motor ...
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A3988 The two input capacitors should be placed in parallel, and as close to the device supply pins as possible. The ceramic capaci- tor should be closer to the pins than the bulk capacitor. This is necessary because the ceramic ...
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A3988 Package EV I12 28 I11 29 GND 30 VCP 31 PAD CP1 32 CP2 33 I01 34 I02 35 I03 36 Terminal List Table Number ...
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A3988 6.00 ±0. 37X 0.08 C +0.05 0.25 –0.07 0.50 0.55 ±0. Quad DMOS Full Bridge PWM Motor Driver EV Package, 36 Pin QFN with Exposed Thermal Pad 1.15 6.00 ±0.15 C ...
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A3988 9.00 ±0.20 7.00 ±0.20 B 9.00 ±0.20 7.00 ±0. 5.00±0.04 48X 0.08 C 0.22 ±0.05 0.50 Copyright ©2006-2010, Allegro MicroSystems, Inc. The products described here are manufactured under one or more U.S. patents or U.S. ...