A4975SLBTR-T vs A3977SLPTR-T Comparaison
Comparaison détaillée côte à côte de A4975SLBTR-T par Allegro MicroSystems et A3977SLPTR-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
A4975SLBTR-T - ±1.5A Full-Bridge PWM Microstepping Driver | Allegro
A4975SLBTR-T ✓ ActifAllegro MicroSystems
A3977SLPTR-T - 35V/±2.5A Microstepping DMOS Driver | Allegro MicroSystems
A3977SLPTR-T ✓ ActifComparaison des spécifications
| Paramètre | A4975SLBTR-T | A3977SLPTR-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) | $2,95 | $3,65 |
| Motor Type | Bipolar Stepper | Bipolar stepper motor |
| Nombre de sorties | 1 full-bridge (one phase winding) | — |
| Configuration de sortie | Full-Bridge (H-Bridge) | Dual full H-bridge (2 outputs) |
| Output Current (Continuous) | ±1.5 A | — |
| Load Supply Voltage | 5 V to 50 V | — |
| Logic Supply Voltage | 4.5 V to 5.5 V | 3 V to 5.5 V |
| Microstepping Resolution | Full, Half, Quarter, Eighth step (via 3-bit nonlinear DAC) | — |
| Current Control | Internal PWM with selectable slow / fast / mixed decay | Fixed off-time PWM with slow/fast/mixed decay |
| DAC Resolution | 3-bit nonlinear (sinusoidal) | — |
| Redressement synchrone | Internal (no external flyback diodes required) | Yes (internal) |
| Thermal Protection | Internal thermal shutdown | — |
| Température de fonctionnement | -20C to +85C [DATA_NEEDED: full industrial temperature range from datasheet] | -20 C to +85 C |
| Boîtier | 16-pin SOIC with exposed thermal pad (SLB) | 28-pin TSSOP-EP (exposed pad) |
| Type de montage | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | — |
| Statut RoHS | Compliant | Compliant |
| Output Transistor Technology | Power MOSFET / DMOS | — |
| Step Modes | — | Full, half, quarter, eighth |
| Load Voltage (Motor Supply) | — | 8 V to 35 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 |
| Sleep Mode | — | Yes (low-power) |
| Automatic Decay Mode Selection | — | Yes |