A3938SLDTR-T vs A4980KLPTR-T Comparaison
Comparaison détaillée côte à côte de A3938SLDTR-T par Allegro MicroSystems et A4980KLPTR-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
A3938SLDTR-T - 3-Phase BLDC MOSFET Controller, 50V | Allegro
A3938SLDTR-T ✓ ActifAllegro MicroSystems
A4980KLPTR-T - 28V 1.4A Bipolar Stepper Driver, TSSOP-28EP | Allegro
A4980KLPTR-T ✓ ActifComparaison des spécifications
| Paramètre | A3938SLDTR-T | A4980KLPTR-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) | $4,05 | $1,20 |
| 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 | — |
| Nombre de sorties | 3 half-bridge gate drive channels | — |
| Configuration de sortie | Pre-driver for N-channel MOSFETs (high-side + low-side) | — |
| High-Side Drive | Bootstrap with internal bootstrap diode | — |
| Redressement synchrone | Yes (low-side) | — |
| Dead Time Adjustment | Adjustable (external resistor) | — |
| MOSFET Protection | Cross-conduction / shoot-through protection | — |
| PWM Input | Logic-level compatible | — |
| Boîtier | 38-pin TSSOP (LD) | 28-pin TSSOP with exposed thermal pad (KLP) |
| Type de montage | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | — |
| Température de fonctionnement | -20C to +85C (industrial range per datasheet) | — |
| Statut RoHS | Compliant (per Alldatasheet listing) | Compliant |
| Motor Type | — | Bipolar stepper |
| Step Resolution | — | Full, 1/2, 1/4, 1/16 microstep |
| Motor Supply Voltage (max) | — | 28 V |
| Output Current per Phase (peak) | — | ±1.4 A |
| Output Current per Phase (continuous, typical) | — | ±750 mA |
| Low-side RDS(on) | — | 0.5 Ω typical |
| Output Stage | — | DMOS with synchronous rectification |
| Control Interface | — | Step/Direction + SPI-compatible serial |
| Current Decay Modes | — | Automatic selection of Mixed, Fast, Slow |
| Shoot-through Protection | — | Yes, internal timers |
| Output Short-circuit Protection | — | Yes |
| Stalled Rotor Detection | — | Yes (flag via SPI) |
| Low-load-current Detection | — | Yes (flag via SPI) |
| Plage de température de fonctionnement | — | [DATA_NEEDED: operating temperature range] |
| AEC-Q100 Automotive Grade | — | Automotive qualified (per datasheet title) |
| Tape & Reel Quantity | — | 4000 per reel (T suffix) |