| Herstellerteil | Datenblatt | Hersteller | Aktuelle Bewertung | Sensor-Typ | Reaktionszeit | Betriebsspannung | Ausgangstyp | Betriebstemperatur | Genauigkeit | Verpackung / Koffer | Versorgungsstrom (Max) | Empfindlichkeit | Funktion |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A4989SLDTR-T |  |
ALLEGRO | K.A. | K.A. | ~120 ns Anstiegszeit | 3 V bis 5,5 V Logik | Digital-/Gate-Ausgänge | -20 °C bis +85 °C | K.A. | TSSOP-38 | 200 mA | K.A. | Dual-Vollbrücken-MOSFET-Treiber |
A4989SLDTR-T
Hersteller: Allegro MicroSystems
Logische Zellen: Mikroschritt-Motortreiber-IC
Logische Schnitte: DMOS-Vollbrückenmotorantrieb und Steuerlogik
Eingebettetes RAM (eRAM): –
Paket: TSSOP-28
Betriebstemperatur: -40 °C bis +105 °C
Spezifikationen
A4989SLDTR-T is an Allegro MicroSystems dual full-bridge MOSFET pre-driver with built-in microstepping translator, engineered to drive high-power 2-phase bipolar stepper motors ranging from 30W to 500W for industrial motion control equipment.
👉 It’s not a low-power miniature stepper driver IC.
👉 It’s a high-voltage, high-efficiency pre-driver solution for heavy-load industrial stepper motor control systems.
Key Features of A4989SLDTR-T Motor Driver IC
Motion control engineers and equipment manufacturers select A4989SLDTR-T for its comprehensive integrated drive performance and stable industrial-grade reliability:
- Integrated microstepping translator supporting full, 1/2, 1/4, and 1/16 microstep resolution
- Simple 2-wire STEP/DIR control interface for easy MCU system integration
- Dual full-bridge gate drive for external N-channel power MOSFETs
- Wide motor load voltage range: 12 V to 50 V for high-power motor applications
- Internal logic supply voltage supports 3 V to 5.5 V, compatible with 3.3V and 5V main control circuits
- Synchronous rectification design to boost power efficiency and cut heat loss
- Built-in cross-conduction protection to prevent MOSFET shoot-through damage
- Adjustable slow/mixed/fast decay modes to reduce motor noise and improve positioning accuracy
- Dual sinusoidal DAC integrated for precise fixed-off-time PWM current regulation
- Optimized low-current microstepping control for smooth low-speed motor operation
- Pin-to-pin compatible with A3986 for convenient product upgrade replacement
- 38-TFSOP surface mount package, tape-and-reel (TR) shipping format
- Industrial operating temperature range: -20°C to 85°C
- RoHS3 compliant lead-free packaging, stable long-term supply cycle
Typische Anwendungen
Industrial CNC equipment and automated motion platforms
Factory automation robotic joints and linear actuators
High-power precision stepper motor drive modules
Medical imaging and lab analytical instruments
Commercial large-format printers and plotters
Packaging machinery and conveyor control systems
Semiconductor manufacturing handling equipment
Office automation large-scale precision positioning devices
LXB Semicon supplies original A4989SLDTR-T motor driver IC
