AMT49413GEVATR - 3-Phase BLDC MOSFET Controller | Allegro
部品番号: AMT49413GEVATR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: AMT49413GEVATR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: AMT49413GEVATR （同一形状・フットプリント） — 相違点: Package, Motor Type, Operating Temperature Range, Output Configuration.
クイック比較ツール — 並列比較する代替部品を選択:
AMT49100
✅ ドロップイン✓ 在庫あり
$4.43 / 個
データシートを見る →AMT49413GEVATR 最大定格＆電気的特性
| Motor Type | 3-Phase Brushless DC (BLDC) |
| Control Method | Fixed-frequency PWM with Hall-sensor commutation |
| 出力構成 | External 3-phase N-channel MOSFET bridge driver |
| Current Sense | External sense resistor |
| 電流制限 | Adjustable via external resistor |
| Direction Control | Yes (logic input) |
| Run/Stop Control | Yes (logic input) |
| Hall Sensor Inputs | Yes (integrated, 3 inputs) |
| 同期整流 | Yes (PWM mode) |
| Dead-Time / Shoot-Through Protection | Yes (built-in) |
| 熱シャットダウン | Yes |
| Fault Output | Yes |
| パッケージ | 48-Lead QFN with Exposed Thermal Pad (7x7 mm) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant (per Allegro product page) |
AMT49413GEVATR ピン構成
| ピン 1 | VBB — Motor supply voltage (battery / bus) |
| ピン 2 | GH_A — Gate drive, phase A high-side |
| ピン 3 | SH_A — Phase A switch node (to motor) |
| ピン 4 | GL_A — Gate drive, phase A low-side |
| ピン 5 | GH_B — Gate drive, phase B high-side |
| ピン 6 | SH_B — Phase B switch node |
| ピン 7 | GL_B — Gate drive, phase B low-side |
| ピン 8 | GH_C — Gate drive, phase C high-side |
| ピン 9 | SH_C — Phase C switch node |
| ピン 10 | GL_C — Gate drive, phase C low-side |
| ピン 11 | CP1 — Charge pump capacitor 1 |
| ピン 12 | CP2 — Charge pump capacitor 2 |
| ピン 13 | VCP — Charge pump output (gate-drive supply) |
| ピン 14 | VDD — Logic supply voltage |
| ピン 15 | GND — Logic ground |
| ピン 16 | PWM — PWM speed/torque input |
| ピン 17 | DIR — Direction control input |
| ピン 18 | RUN/STOP — Run/Stop control input |
| ピン 19 | BRAKE — Brake input (low-side slow decay) |
| ピン 20 | ENABLE — Logic enable input |
| ピン 21 | RESET — Logic reset input |
| ピン 22 | FAULT — Fault output (open-drain) |
| ピン 23 | OSC — Oscillator timing capacitor |
| ピン 24 | VREF — Reference voltage output |
| ピン 25 | HA — Hall sensor A input |
| ピン 26 | HB — Hall sensor B input |
| ピン 27 | HC — Hall sensor C input |
| ピン 28 | SENSE — Current sense amplifier input |
| ピン 29 | SENSE_REF — Current sense reference |
| ピン 30 | NC — Not connected (per datasheet) |
| ピン 31 | NC — Not connected (per datasheet) |
| ピン 32 | NC — Not connected (per datasheet) |
| ピン 33 | NC — Not connected (per datasheet) |
| ピン 34 | NC — Not connected (per datasheet) |
| ピン 35 | NC — Not connected (per datasheet) |
| ピン 36 | NC — Not connected (per datasheet) |
| ピン 37 | NC — Not connected (per datasheet) |
| ピン 38 | NC — Not connected (per datasheet) |
| ピン 39 | NC — Not connected (per datasheet) |
| ピン 40 | NC — Not connected (per datasheet) |
| ピン 41 | NC — Not connected (per datasheet) |
| ピン 42 | NC — Not connected (per datasheet) |
| ピン 43 | NC — Not connected (per datasheet) |
| ピン 44 | NC — Not connected (per datasheet) |
| ピン 45 | NC — Not connected (per datasheet) |
| ピン 46 | NC — Not connected (per datasheet) |
| ピン 47 | NC — Not connected (per datasheet) |
| ピン 48 | NC — Not connected (per datasheet) |
| ピン 49 | EP — Exposed thermal pad - solder to PCB ground pour |
主な用途
AMT49413GEVATR の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AMT49413GEVATR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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) |
主な差別化要因
- 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)
設計ノート
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.
コンプライアンス情報
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.
