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A3988 데이터시트(PDF) 2 Page - Allegro MicroSystems |
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A3988 데이터시트(HTML) 2 Page - Allegro MicroSystems |
2 / 13 page Quad DMOS Full Bridge PWM Motor Driver A3988 2 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Selection Guide Part Number Package Packing A3988SEV-T 36 pin QFN with exposed thermal pad 61 pieces per tube A3988SEVTR-T 36 pin QFN with exposed thermal pad 1500 pieces per reel A3988SJP-T 48 pin LQFP with exposed thermal pad 250 pieces per tray Absolute Maximum Ratings Characteristic Symbol Notes Rating Units Load Supply Voltage VBB -0.5 to 36 V Pulsed tw < 1 μs38 V Logic Supply Voltage VDD –0.4 to 7 V Output Current IOUT May be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the specified current rating or a Junction Temperature of 150°C. 1.2 A Pulsed tw < 1 μs 2.8 A Logic Input Voltage Range VIN –0.3 to 7 V SENSEx Pin Voltage VSENSEx 0.5 V Pulsed tw < 1 μs 2.5 V VREFx Pin Voltage VREFx 2.5 V Operating Temperature Range TA Range S –20 to 85 ºC Junction Temperature TJ(max) 150 ºC Storage Temperature Range Tstg –40 to 125 ºC Thermal Characteristics (may require derating at maximum conditions) Characteristic Symbol Test Conditions Min. Units Package Thermal Resistance RθJA EV package, 4 layer PCB based on JEDEC standard 27 ºC/W JP package, 4 layer PCB based on JEDEC standard 23 ºC/W 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 25 50 75 100 125 150 175 Temperature (°C) Power Dissipation versus Ambient Temperature (R JA = 23 ºC/W) JP Package 4-layer PCB (R JA = 27 ºC/W) EV Package 4-layer PCB |
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