A4973SLBTR-T vs A3982SLBTR-T 对比
详细并排对比 A4973SLBTR-T 出自 Allegro MicroSystems 和 A3982SLBTR-T 出自 Allegro MicroSystems。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | A4973SLBTR-T | A3982SLBTR-T |
|---|---|---|
| 品牌 | Allegro MicroSystems | Allegro MicroSystems |
| 分类 | Motor Drivers | Motor Drivers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $3.71 | $4.63 |
| Motor Type | Brushed DC | Bipolar stepper |
| 输出配置 | Full-Bridge (H-Bridge), 1 bridge | Dual full H-bridge |
| 输出数量 | 2 (half-bridge pair forming 1 full bridge) | 4 (dual full bridge) |
| Continuous Output Current | ±1.5 A | ±2 A per phase |
| Load Supply Voltage (VBB) | 5 V to 50 V | — |
| Logic Supply Voltage (VCC) | 3 V to 5.5 V | — |
| Current Control | Internal fixed off-time PWM with 3-bit DAC setpoint | — |
| Current-Decay Modes | Fast and slow decay, user-selectable | — |
| Sleep Mode | Yes (low quiescent current) | — |
| Protection Features | Thermal shutdown, crossover-current protection | — |
| 工作温度 | -20 C to +85 C | -20 C to +85 C |
| 封装 | 16-pin SOIC Wide Body (SLB) with exposed thermal pad | SOIC-24 (SLB) with exposed thermal pad |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | [DATA_NEEDED: MSL level] | — |
| RoHS 状态 | Compliant | Compliant |
| Logic Supply Voltage | — | 3 V to 5.5 V |
| Motor Supply Voltage (Load) | — | 8 V to 35 V |
| RDS(on) (typical) | — | 370 mOhm |
| Step Modes | — | Full-step, Half-step |
| Current Decay Modes | — | Slow, Mixed, Fast (auto-detected) |
| Current Regulation | — | Fixed off-time PWM |
| Built-in Translator | — | Yes (STEP/DIR input) |