Datasheet A4975 (Allegro) - 3
| Manufacturer | Allegro |
| Description | Full-Bridge PWM Microstepping Motor Driver |
| Pages / Page | 14 / 3 — A4975. Full-Bridge PWM Microstepping Motor Driver. THERMAL … |
| File Format / Size | PDF / 842 Kb |
| Document Language | English |
A4975. Full-Bridge PWM Microstepping Motor Driver. THERMAL CHARACTERISTICS. Characteristic. Symbol. Test Conditions*. Value. Units
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A4975 Full-Bridge PWM Microstepping Motor Driver THERMAL CHARACTERISTICS Characteristic Symbol Test Conditions* Value Units
B Package, single-layer PCB, 1 in.2 2-oz. exposed copper 43 °C/W Package Thermal Resistance, Junction to Ambient RθJA LB Package, 2-layer PCB, 0.3 in.2 2-oz. exposed copper each side 67 °C/W Package Thermal Resistance, Junction to Tab RθJT 6 °C/W *Additional thermal information available on Allegro website. 4 R = 6.0°C/W θJT 3 SUFFIX 'B', R = 43°C/W θJA 2 1 SUFFIX 'LB', R = 67°C/W θJA 0 25 50 75 100 125 150 ALLOWABLE PACKAGE POWER DISSIPATION (W) TEMPERATURE IN °C Allegro MicroSystems, LLC 3 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com
B Package, single-layer PCB, 1 in.2 2-oz. exposed copper 43 °C/W Package Thermal Resistance, Junction to Ambient RθJA LB Package, 2-layer PCB, 0.3 in.2 2-oz. exposed copper each side 67 °C/W Package Thermal Resistance, Junction to Tab RθJT 6 °C/W *Additional thermal information available on Allegro website. 4 R = 6.0°C/W θJT 3 SUFFIX 'B', R = 43°C/W θJA 2 1 SUFFIX 'LB', R = 67°C/W θJA 0 25 50 75 100 125 150 ALLOWABLE PACKAGE POWER DISSIPATION (W) TEMPERATURE IN °C Allegro MicroSystems, LLC 3 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com
