Product Details
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MICROSTEPPING DMOS DRIVER WITH TRANSLATOR motor drivers dissipation. The translator is the key to the easy implementation of the A3977. By simply inputting one pulse on the STEP input the motor will take one step (full, half, quarter, or eighth depending on two logic inputs). There are no phase-sequence tables, high-frequency control lines, or complex interfaces to program. The A3977 interface is an ideal fit for applications where a complex μP is unavailable or over-burdened.
■ ±2.5 A, 35 V Output Rating ■ Low rDS(on) Outputs, 0.45 ? Source, 0.36 ? Sink Typical ■ Automatic Current Decay Mode Detection/Selection ■ 3.0 V to 5.5 V Logic Supply Voltage Range ■ Mixed, Fast, and Slow Current Decay Modes ■ Home Output ■ Synchronous Rectification for Low Power Dissipation ■ Internal UVLO and Thermal Shutdown Circuitry ■ Crossover-Current Protection |
Product Description
| Type | Description |
| ANSC PART# | ANSC - A3977SED |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| Motor Drivers, Controllers | |
| Manufacturer | Allegro MicroSystems |
| Series | - |
| Packaging | Tube |
| Part Status | Obsolete |
| Motor Type - Stepper | Bipolar |
| Motor Type - AC, DC | - |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Output Configuration | Half Bridge (4) |
| Interface | Logic |
| Technology | DMOS |
| Step Resolution | 1, 1/2, 1/4, 1/8 |
| Applications | General Purpose |
| Current - Output | 2.5A |
| Voltage - Supply | 3V ~ 5.5V |
| Voltage - Load | 8V ~ 35V |
| Operating Temperature |
-20°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 44-LCC (J-Lead) |
| Supplier Device Package | 44-PLCC (16.59x16.59) |
| Base Product Number | A3977 |
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