A3977SLPTR-T vs A4975SLBTR-T 比較
詳細並排比較 A3977SLPTR-T 由 Allegro MicroSystems 與 A4975SLBTR-T 由 Allegro MicroSystems. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
Allegro MicroSystems
A3977SLPTR-T - 35V/±2.5A Microstepping DMOS Driver | Allegro MicroSystems
A3977SLPTR-T ✓ 啟用中Allegro MicroSystems
A4975SLBTR-T - ±1.5A Full-Bridge PWM Microstepping Driver | Allegro
A4975SLBTR-T ✓ 啟用中規格比較
| 參數 | A3977SLPTR-T | A4975SLBTR-T |
|---|---|---|
| 品牌 | Allegro MicroSystems | Allegro MicroSystems |
| 類別 | Motor Drivers | Motor Drivers |
| 生命週期狀態 | 啟用中 | 啟用中 |
| Motor Type | Bipolar stepper motor | Bipolar Stepper |
| Step Modes | Full, half, quarter, eighth | — |
| 輸出配置 | Dual full H-bridge (2 outputs) | Full-Bridge (H-Bridge) |
| Load Voltage (Motor Supply) | 8 V to 35 V | — |
| Logic Supply Voltage | 3 V to 5.5 V | 4.5 V to 5.5 V |
| Output Current (per phase) | ±2.5 A | — |
| Maximum Output Voltage Rating | 35 V | — |
| rDS(on) - Source DMOS (typical) | 0.45 ohm | — |
| rDS(on) - Sink DMOS (typical) | 0.36 ohm | — |
| Current Control | Fixed off-time PWM with slow/fast/mixed decay | Internal PWM with selectable slow / fast / mixed decay |
| 同步整流 | Yes (internal) | Internal (no external flyback diodes required) |
| Sleep Mode | Yes (low-power) | — |
| Automatic Decay Mode Selection | Yes | — |
| 工作溫度 | -20 C to +85 C | -20C to +85C [DATA_NEEDED: full industrial temperature range from datasheet] |
| 封裝 | 28-pin TSSOP-EP (exposed pad) | 16-pin SOIC with exposed thermal pad (SLB) |
| 安裝類型 | Surface Mount | Surface Mount |
| RoHS 狀態 | Compliant | Compliant |
| 輸出數量 | — | 1 full-bridge (one phase winding) |
| Output Current (Continuous) | — | ±1.5 A |
| Load Supply Voltage | — | 5 V to 50 V |
| Microstepping Resolution | — | Full, Half, Quarter, Eighth step (via 3-bit nonlinear DAC) |
| DAC Resolution | — | 3-bit nonlinear (sinusoidal) |
| Thermal Protection | — | Internal thermal shutdown |
| Packaging | — | Tape & Reel (TR) |
| Output Transistor Technology | — | Power MOSFET / DMOS |