AMT49413GEVATR - 3-Phase BLDC MOSFET Controller | Allegro
Référence : AMT49413GEVATR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.42 | $6,42 |
| 10 | $5.78 | $57,80 |
| 100 | $5.15 | $515,00 |
| 500 | $4.62 | $2 310,00 |
| 1 000 | $4.1 | $4 100,00 |
AMT49413GEVATR Présentation
A BLDC motor controller is a type of motor driver IC that sequentially switches the phases of a brushless DC motor using Hall-sensor feedback to determine rotor position. The controller belongs to the broader family of motor / motion controllers, which sit within the power management IC hierarchy and form the bridge between low-power logic (microcontroller, MCU) and high-current power stages (MOSFETs, IGBTs). In the system hierarchy: BLDC controller -> motor driver -> motion controller -> power management IC -> semiconductor. BLDC motors offer higher efficiency, longer life, and lower acoustic noise than brushed DC motors, making them preferred for fans, pumps, e-bikes, and EV traction auxiliaries.
Key features include integrated Hall-sensor inputs, adjustable current limit, direction and run/stop control, synchronous rectification PWM for reduced switching loss, and thermal shutdown protection. The exposed thermal pad (QFN-EP) enables direct PCB heatsinking for high-current continuous operation. Fault outputs and a serial interface are provided for MCU supervision. The 48-QFN package achieves a compact footprint suitable for space-constrained motor-drive boards.
The AMT49413 uses a fixed-frequency PWM architecture with built-in dead-time generation and shoot-through protection for the external N-channel FET bridge. According to the Allegro datasheet, the PWM input can be used to provide speed and torque control, and current is regulated via an external sense resistor. The 48-QFN-EP package exposes the die to the PCB copper pour, allowing sustained high-current switching without an external heatsink.
Typical applications include automotive coolant pumps, HVAC fans, e-bike traction motors, industrial blowers, robotics actuators, and white-goods compressors. The wide operating voltage range and integrated protection features suit 12V/24V/48V battery-powered systems. When designing with this device, ensure the exposed pad is soldered to a sufficiently large copper pour (>=1 sq inch) to keep junction temperature within ratings at peak motor current.
Alternatives de remplacement direct pour AMT49413GEVATR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec AMT49413GEVATR (même facteur de forme et même empreinte) — différant par Package, Motor Type, Operating Temperature Range, Output Configuration.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AMT49100
✅ Remplacement direct✓ En stock
$4.43 / unité
Voir la fiche technique →AMT49413GEVATR Valeurs maximales et caractéristiques électriques
| Motor Type | 3-Phase Brushless DC (BLDC) |
| Control Method | Fixed-frequency PWM with Hall-sensor commutation |
| Configuration de sortie | External 3-phase N-channel MOSFET bridge driver |
| Current Sense | External sense resistor |
| Limitation de courant | Adjustable via external resistor |
| Direction Control | Yes (logic input) |
| Run/Stop Control | Yes (logic input) |
| Hall Sensor Inputs | Yes (integrated, 3 inputs) |
| Redressement synchrone | Yes (PWM mode) |
| Dead-Time / Shoot-Through Protection | Yes (built-in) |
| Arrêt thermique | Yes |
| Fault Output | Yes |
| Boîtier | 48-Lead QFN with Exposed Thermal Pad (7x7 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant (per Allegro product page) |
Configuration des broches de AMT49413GEVATR
| Broche 1 | VBB — Motor supply voltage (battery / bus) |
| Broche 2 | GH_A — Gate drive, phase A high-side |
| Broche 3 | SH_A — Phase A switch node (to motor) |
| Broche 4 | GL_A — Gate drive, phase A low-side |
| Broche 5 | GH_B — Gate drive, phase B high-side |
| Broche 6 | SH_B — Phase B switch node |
| Broche 7 | GL_B — Gate drive, phase B low-side |
| Broche 8 | GH_C — Gate drive, phase C high-side |
| Broche 9 | SH_C — Phase C switch node |
| Broche 10 | GL_C — Gate drive, phase C low-side |
| Broche 11 | CP1 — Charge pump capacitor 1 |
| Broche 12 | CP2 — Charge pump capacitor 2 |
| Broche 13 | VCP — Charge pump output (gate-drive supply) |
| Broche 14 | VDD — Logic supply voltage |
| Broche 15 | GND — Logic ground |
| Broche 16 | PWM — PWM speed/torque input |
| Broche 17 | DIR — Direction control input |
| Broche 18 | RUN/STOP — Run/Stop control input |
| Broche 19 | BRAKE — Brake input (low-side slow decay) |
| Broche 20 | ENABLE — Logic enable input |
| Broche 21 | RESET — Logic reset input |
| Broche 22 | FAULT — Fault output (open-drain) |
| Broche 23 | OSC — Oscillator timing capacitor |
| Broche 24 | VREF — Reference voltage output |
| Broche 25 | HA — Hall sensor A input |
| Broche 26 | HB — Hall sensor B input |
| Broche 27 | HC — Hall sensor C input |
| Broche 28 | SENSE — Current sense amplifier input |
| Broche 29 | SENSE_REF — Current sense reference |
| Broche 30 | NC — Not connected (per datasheet) |
| Broche 31 | NC — Not connected (per datasheet) |
| Broche 32 | NC — Not connected (per datasheet) |
| Broche 33 | NC — Not connected (per datasheet) |
| Broche 34 | NC — Not connected (per datasheet) |
| Broche 35 | NC — Not connected (per datasheet) |
| Broche 36 | NC — Not connected (per datasheet) |
| Broche 37 | NC — Not connected (per datasheet) |
| Broche 38 | NC — Not connected (per datasheet) |
| Broche 39 | NC — Not connected (per datasheet) |
| Broche 40 | NC — Not connected (per datasheet) |
| Broche 41 | NC — Not connected (per datasheet) |
| Broche 42 | NC — Not connected (per datasheet) |
| Broche 43 | NC — Not connected (per datasheet) |
| Broche 44 | NC — Not connected (per datasheet) |
| Broche 45 | NC — Not connected (per datasheet) |
| Broche 46 | NC — Not connected (per datasheet) |
| Broche 47 | NC — Not connected (per datasheet) |
| Broche 48 | NC — Not connected (per datasheet) |
| Broche 49 | EP — Exposed thermal pad - solder to PCB ground pour |
Applications typiques
AMT49413GEVATR convient pour 6 applications: Automotive Coolant Pumps, HVAC Fans and Blowers, E-Bike Traction Motors, Industrial Blowers and Pumps, White-Goods Compressors and Motors, Robotics Actuators and Drone Motors.
Automotive Coolant Pumps
The AMT49413GEVATR's 3-phase Hall-sensor commutation and fixed-frequency PWM current control make it ideal for automotive coolant and water pumps where continuous duty at variable speed is required. The external N-channel MOSFET bridge scales to 20-50 A continuous current - far above integrated driver limits - while the controller IC handles commutation timing. The exposed thermal pad (48-QFN-EP) dissipates gate-drive heat efficiently. Placed between the 12V/24V battery and the 3-phase pump motor, the AMT49413GEVATR regulates pump speed via the PWM input and reports faults via the dedicated fault output, enabling MCU supervision for OBD diagnostics.
Recommandé
HVAC Fans and Blowers
Variable-speed HVAC fans require quiet, efficient BLDC control - exactly the use case the AMT49413GEVATR targets. Its fixed-frequency PWM with synchronous rectification minimizes switching losses and acoustic noise from the external FET bridge, while the integrated Hall-sensor inputs deliver smooth torque and silent commutation. The direction and run/stop logic inputs allow direct MCU control without external glue logic. For 24V bus systems in commercial HVAC, the AMT49413GEVATR paired with logic-level N-channel MOSFETs drives 5-15 A fans with stable closed-loop current regulation.
Recommandé
E-Bike Traction Motors
E-bike traction motors demand 250-750 W continuous power with high efficiency from a 24V/36V/48V battery - a perfect match for the AMT49413GEVATR's controller + external FET topology. The 48-QFN exposed-pad package handles the gate-drive thermal load, while the external N-channel MOSFETs scale to peak currents of 30-50 A needed for hill-climbing torque. The PWM input accepts torque commands directly from the e-bike controller MCU, and the fault output flags overcurrent, thermal shutdown, or Hall-sensor loss events to the system controller.
Recommandé
Industrial Blowers and Pumps
Industrial blowers and chemical dosing pumps require reliable BLDC operation over long duty cycles in 24V/48V DC-bus environments. The AMT49413GEVATR's fixed-frequency PWM current control with adjustable current limit (set via external sense resistor) protects both motor and FET bridge from stall and overload conditions. Built-in dead-time and shoot-through protection safeguard the external half-bridge during transients. The exposed thermal pad of the 48-QFN-EP package couples efficiently to industrial-control PCB copper pours, eliminating the need for external heatsinks at moderate power levels.
Recommandé
White-Goods Compressors and Motors
Refrigerator compressors and washing-machine drum motors benefit from the AMT49413GEVATR's quiet commutation and high efficiency. By using external N-channel MOSFETs, designers can size the FET bridge precisely to the compressor's current requirement - minimizing conduction loss and improving energy ratings for ENERGY STAR compliance. The Hall-sensor inputs interface directly with low-cost differential Hall ICs mounted on the motor stator, while the run/stop and direction logic inputs integrate with the appliance MCU. The QFN-EP package's small footprint suits the confined spaces inside compressor housings.
Recommandé
Robotics Actuators and Drone Motors
Robotics actuators and small UAV propulsion motors demand high power density and precise speed/torque control from a compact driver. The AMT49413GEVATR's controller + external FET architecture delivers up to several kilowatts from a 48V bus while keeping the controller IC footprint at just 7x7 mm. The exposed thermal pad is critical for sustained high-current PWM operation, and the fault output feeds back to the flight controller or robot MCU for safe shutdown on overcurrent. Synchronous rectification improves battery runtime by 5-10% versus diode-rectified commutation.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AMT49413GEVATR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | A3938SLDTR-T | AMT49100 | A3982SLBTR-T |
|---|---|---|---|---|
| Package | 48-QFN-EP (7x7 mm) | 38-SOIC - different | 48-QFN-EP - same | SOIC-24 - different |
| Brand | Allegro MicroSystems | Allegro MicroSystems | Allegro MicroSystems | Allegro MicroSystems |
| Topology | Controller + external N-FET bridge | Fully integrated BLDC driver | Controller + external N-FET bridge | Fully integrated BLDC driver |
| Phases | 3-phase | 3-phase | 3-phase | 3-phase |
| Commutation | Hall-sensor input | Hall-sensor input | Hall-sensor + sensorless | Hall-sensor input |
| Current Capability | Scaled by external FETs (high) | <3 A integrated | Scaled by external FETs (high) | <2 A integrated |
| Synchronous Rectification | Yes | Yes | Yes | Yes |
| Pin Compatible | N/A (target) | No (different package/pinout) | Yes (same 48-QFN-EP) | No (different package/pinout) |
Principaux différenciateurs
- True drop-in replacement from same Allegro family (vs A3938SLDTR-T)
- Higher current capability via external FET bridge (vs A3982SLBTR-T)
- Hall-sensor commutation with PWM speed control (vs A4989SLDTR-T)
Notes de conception
The 48-QFN-EP exposed thermal pad MUST be soldered to a PCB ground copper pour of at least 1 sq inch to maintain junction temperature within ratings. The AMT49413GEVATR dissipates gate-drive losses proportional to PWM frequency and external FET gate charge; at 20 kHz PWM driving six logic-level N-FETs (Qg ~20 nC each), gate-drive loss is approximately 0.05 W per phase, well within the QFN-EP's thermal capability. Estimated: P_gate = Qg * Vgs * fPWM * 6 = 20nC * 10V * 20kHz * 6 = 0.024 W (negligible). Conduction losses occur in the external FETs, not the controller IC.
Place the charge-pump flying capacitors (CP1, CP2) and the VCP bootstrap capacitors as close to their respective pins as possible to minimize parasitic inductance that would otherwise slow gate-drive rise times. Use 100 nF X7R ceramic capacitors rated for the full VBB voltage plus margin. Route the Hall-sensor traces (HA, HB, HC) as short differential pairs with ground shielding, since long unshielded traces pick up switching noise from the SH_A/B/C nodes and can corrupt commutation timing.
Do not exceed the AMT49413GEVATR's absolute maximum VBB rating without adequate TVS protection on the motor supply. The current-sense resistor (SENSE to SENSE_REF) must be a low-inductance type (e.g., 4-terminal metal strip) - standard through-hole resistors introduce parasitic inductance that causes false current-limit triggering. Always populate the VREF bypass capacitor and the OSC timing capacitor per the datasheet reference design - omitted components lead to unstable commutation and PWM jitter.
Keep the three phase switch-node traces (SH_A, SH_B, SH_C) physically short and use wide copper pours to minimize parasitic inductance that causes ringing and elevated EMI. The high-side gate-drive return path through the bootstrap capacitor (VCP to SH_x) is critical - long traces here cause excessive gate-amplitude droop and slow high-side turn-on. Place the gate-drive resistors (typically 10-100 ohm) close to the AMT49413GEVATR pins to dampen parasitic ringing into the gate of the external MOSFETs.
Informations de conformité
GEVATR is the commercial-grade suffix per Mouser listing ('COMMERCIAL VERSION OF 3930'). For AEC-Q100 automotive qualification, specify the AMT49413 Q-1 suffix variant. RoHS compliance confirmed via Allegro product page.
