A4975SLBTR-T vs A3938SLDTR-T Comparaison
Comparaison détaillée côte à côte de A4975SLBTR-T par Allegro MicroSystems et A3938SLDTR-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
A3938SLDTR-T - 3-Phase BLDC MOSFET Controller, 50V | Allegro
A3938SLDTR-T ✓ ActifComparaison des spécifications
| Paramètre | A4975SLBTR-T | A3938SLDTR-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 | $4,05 |
| Motor Type | Bipolar Stepper | — |
| Nombre de sorties | 1 full-bridge (one phase winding) | 3 half-bridge gate drive channels |
| Configuration de sortie | Full-Bridge (H-Bridge) | Pre-driver for N-channel MOSFETs (high-side + low-side) |
| Output Current (Continuous) | ±1.5 A | — |
| Load Supply Voltage | 5 V to 50 V | — |
| Logic Supply Voltage | 4.5 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 | — |
| DAC Resolution | 3-bit nonlinear (sinusoidal) | — |
| Redressement synchrone | Internal (no external flyback diodes required) | Yes (low-side) |
| Thermal Protection | Internal thermal shutdown | — |
| Température de fonctionnement | -20C to +85C [DATA_NEEDED: full industrial temperature range from datasheet] | -20C to +85C (industrial range per datasheet) |
| Boîtier | 16-pin SOIC with exposed thermal pad (SLB) | 38-pin TSSOP (LD) |
| Type de montage | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) |
| Statut RoHS | Compliant | Compliant (per Alldatasheet listing) |
| Output Transistor Technology | Power MOSFET / DMOS | — |
| Fonction | — | Three-phase BLDC motor controller / MOSFET gate driver |
| Motor Supply Voltage | — | 18 V to 50 V |
| Topologie | — | Three-phase, 6-step PWM / synchronous rectification |
| High-Side Drive | — | Bootstrap with internal bootstrap diode |
| Dead Time Adjustment | — | Adjustable (external resistor) |
| MOSFET Protection | — | Cross-conduction / shoot-through protection |
| PWM Input | — | Logic-level compatible |