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| PartNumber | A3973SLB | A3973SLBT | A3973SLBTR |
| Description | IC MTR DRV BIPLR 4.5-5.5V 24SOIC | IC MTR DRV BIPLR 4.5-5.5V 24SOIC | |
| Manufacturer | Allegro MicroSystems, LLC | - | Allegro MicroSystems, LLC |
| Product Category | PMIC - Motor Drivers, Controllers | - | PMIC - Motor Drivers, Controllers |
| Series | - | - | - |
| Packaging | Tube | - | Tape & Reel (TR) |
| Package Case | 24-SOIC (0.295", 7.50mm Width) | - | 24-SOIC (0.295", 7.50mm Width) |
| Technology | DMOS | - | DMOS |
| Operating Temperature | -20°C ~ 150°C (TJ) | - | -20°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | - | Surface Mount |
| Function | Driver - Fully Integrated, Control and Power Stage | - | Driver - Fully Integrated, Control and Power Stage |
| Applications | General Purpose | - | General Purpose |
| Interface | Serial | - | Serial |
| Voltage Supply | 4.5 V ~ 5.5 V | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | 24-SOIC W | - | 24-SOIC W |
| Current Output | 1A | - | 1A |
| Output Configuration | Half Bridge (4) | - | Half Bridge (4) |
| Voltage Load | 15 V ~ 35 V | - | 15 V ~ 35 V |
| Motor Type Stepper | Bipolar | - | Bipolar |
| Motor Type AC DC | - | - | - |
| Step Resolution | 1 ~ 1/64 | - | 1 ~ 1/64 |