A3977SLPTR-T vs A4975SLBTR-T Comparaison
Comparaison détaillée côte à côte de A3977SLPTR-T par Allegro MicroSystems et A4975SLBTR-T par Allegro MicroSystems. Comparez les spécifications clés, les paramètres électriques, le conditionnement, le statut de cycle de vie, les prix et la disponibilité pour déterminer le meilleur composant pour vos exigences de conception.
Allegro MicroSystems
A3977SLPTR-T - 35V/±2.5A Microstepping DMOS Driver | Allegro MicroSystems
A3977SLPTR-T ✓ ActifAllegro MicroSystems
A4975SLBTR-T - ±1.5A Full-Bridge PWM Microstepping Driver | Allegro
A4975SLBTR-T ✓ ActifComparaison des spécifications
| Paramètre | A3977SLPTR-T | A4975SLBTR-T |
|---|---|---|
| Marque | Allegro MicroSystems | Allegro MicroSystems |
| Catégorie | Motor Drivers | Motor Drivers |
| Statut du cycle de vie | Actif | Actif |
| Statut du stock | In Stock | In Stock |
| Prix unitaire (USD) | $3,65 | $2,95 |
| Motor Type | Bipolar stepper motor | Bipolar Stepper |
| Step Modes | Full, half, quarter, eighth | — |
| Configuration de sortie | 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 |
| Redressement synchrone | Yes (internal) | Internal (no external flyback diodes required) |
| Sleep Mode | Yes (low-power) | — |
| Automatic Decay Mode Selection | Yes | — |
| Température de fonctionnement | -20 C to +85 C | -20C to +85C [DATA_NEEDED: full industrial temperature range from datasheet] |
| Boîtier | 28-pin TSSOP-EP (exposed pad) | 16-pin SOIC with exposed thermal pad (SLB) |
| Type de montage | Surface Mount | Surface Mount |
| Statut RoHS | Compliant | Compliant |
| Nombre de sorties | — | 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 |