MC3PHACVDW - 3-Phase AC Motor Controller | NXP Semiconductors
MPN: MC3PHACVDW ✓ Hoạt độngMC3PHACVDW Tóm tắt
An AC motor controller is an intelligent motor-driver IC that synthesizes Pulse-Width Modulation (PWM) waveforms to vary the stator frequency and amplitude of an induction or permanent-magnet AC motor. It sits below the microcontroller or sensorless estimator in the control hierarchy of a variable-frequency drive (VFD): the host micro issues speed/torque commands, the controller generates the six-step or sinusoidal PWM that switches the IGBT bridge, and the link between the low-voltage logic and the high-voltage power stage is sealed inside the 28-SOIC. The MC3PHACVDW belongs to a family that historically targets fan, pump, and small compressor drives in white goods and HVAC.
Key features include a 4.5 V to 5.5 V single logic supply, an on-chip DSP-style computation block for sensorless or open-loop V/Hz control, programmable acceleration/deceleration ramps, and configurable PWM switching frequency. The device supports direct interface to an external 3-phase IGBT module and includes integrated dead-time generation to prevent shoot-through across the high- and low-side transistors of the inverter bridge.
The architecture combines an 8-bit MCU-style core with a hardware PWM engine and analog comparators. Communication with the host is serial, allowing the part to be re-tasked for different motor profiles without firmware changes. Operating temperature range is -40 °C to 105 °C, suiting industrial-grade enclosures and IPM-style heat-sunk assemblies.
Typical applications include consumer and industrial variable-frequency drives for fans, pumps and compressors, HVAC blowers, washing-machine direct-drive motors, and small 3-phase induction-motor inverters in home-appliance white goods. The integrated control block removes the need for a dedicated DSP in low-cost designs.
A design consideration is that the MC3PHACVDW only generates logic-level PWM; the 28-SOIC cannot drive the IGBT gates directly at full motor current. A gate-driver IC (for example the NXP MC33035 family or the FAN7380) plus a separate IGBT bridge rated for the motor's bus voltage is required to complete the inverter.
This page synthesizes distributor pricing, 3-phase VFD design notes, and parametric comparison against equivalent motor controllers not found on a single manufacturer datasheet page.
Bộ thay thế dễ dàng lắp đặt cho MC3PHACVDW — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC3PHACVDW (cùng hình factor và footprint) — khác nhau ở Function, Interface, Motor Type, Number of Outputs, Operating Temperature.
MC3PHACVP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC3PHACVDWR2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC33035DW
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IR2133S
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
FAN7380MX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC3PHACVDW Tỷ lệ tối đa & tính chất điện
| Motor Type | 3-Phase AC Motor (induction / PMSM) |
| Chức năng | Monolithic intelligent motor controller (V/Hz + sensorless) |
| Cấu trúc | PWM controller for external 3-phase IGBT inverter |
| Số lượng đầu ra | 1 (3-phase PWM engine) |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| Load Voltage | External IGBT/IGBT-module rated (controller is logic-side only) |
| Giao diện | Serial (host control & parameter upload) |
| Dead-Time Insertion | Integrated (per datasheet) |
| Nhiệt độ hoạt động | -40 °C to +105 °C |
| Hộp | 28-SOIC (DW), surface-mount |
| Terminal Count | 28 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (per distributor listing) |
| Automotive Grade (AEC-Q100) | Not qualified - industrial grade only |
Cấu hình chân MC3PHACVDW
| Chân 1 | VCC — +5 V logic supply (4.5 V to 5.5 V) |
| Chân 2 | TXD — Serial transmit data (SCI to host MCU) |
| Chân 3 | RXD — Serial receive data (SCI from host MCU) |
| Chân 4 | SCLK — Serial clock for parameter upload |
| Chân 5 | GND — Logic ground |
| Chân 6 | PWM1H — Phase U high-side PWM output |
| Chân 7 | PWM1L — Phase U low-side PWM output |
| Chân 8 | PWM2H — Phase V high-side PWM output |
| Chân 9 | PWM2L — Phase V low-side PWM output |
| Chân 10 | PWM3H — Phase W high-side PWM output |
| Chân 11 | PWM3L — Phase W low-side PWM output |
| Chân 12 | FAULT — Fault output (open-drain, active low) |
| Chân 13 | ISENSE — Current-sense analog input |
| Chân 14 | VSENSE — DC-bus voltage-sense analog input |
| Chân 15 | TEMP — Heatsink / IPM temperature analog input |
| Chân 16 | ACCEL — Acceleration-rate configuration input |
| Chân 17 | DECEL — Deceleration-rate configuration input |
| Chân 18 | FREQ — Frequency-set analog input |
| Chân 19 | START — Start/Stop command input (active high) |
| Chân 20 | DIR — Direction command input |
| Chân 21 | BRAKE — Brake command input (active high) |
| Chân 22 | RESET — Reset input (active low) |
| Chân 23 | OSC1 — Crystal oscillator input |
| Chân 24 | OSC2 — Crystal oscillator output |
| Chân 25 | VDD — Internal regulator bypass / +5 V |
| Chân 26 | VSS — Logic ground (alias of pin 5) |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MC3PHACVDW phù hợp cho 6 Áp dụngs: Variable-Frequency Drive for HVAC Fans and Pumps, White-Goods Washing-Machine Direct-Drive Motor, Compressor Drive for Refrigeration and Air-Conditioner Outdoor Units, Small 3-Phase Industrial Pump Inverter, Industrial Exhaust Fan and Ventilation Controller, Renewable / Off-Grid Inverter-Boost Stage.
Variable-Frequency Drive for HVAC Fans and Pumps
The MC3PHACVDW drives small 3-phase induction motors used in HVAC blower fans and water-circulation pumps up to roughly 1 HP (750 W). Its single 5 V supply simplifies the low-voltage side of the VFD, while the integrated V/Hz control algorithm and configurable acceleration/deceleration ramps enable soft-start without host-microcontroller intervention. In a 220 V class fan drive the controller switches an external IGBT bridge - typically an FSAM10SH60A - at 4-8 kHz, modulating the stator frequency to vary airflow while keeping peak motor current within safe limits for thermal-limited IP20 enclosures. The -40 °C to +105 °C industrial temperature grade supports unventilated outdoor HVAC cabinets. Compared with a discrete MCU + gate-driver solution, the MC3PHACVDW removes one IC from the BOM and the associated firmware qualification, making it cost-effective for high-volume appliance designs.
Được đề xuất
White-Goods Washing-Machine Direct-Drive Motor
Front-load washing machines commonly use a 3-phase direct-drive motor spinning up to 12,000-16,000 rpm for variable-speed wash and spin cycles. The MC3PHACVDW's configurable PWM frequency, programmable ramp rates, and integrated dead-time insertion suit the dynamic load profile of a drum reversing from wash to high-speed spin. The serial interface allows the appliance MCU to upload motor parameters (rated current, V/Hz curve, slip compensation) per fabric cycle. A practical implementation pairs the controller with a 600 V / 15-20 A IGBT six-pack and the FAN7380 half-bridge gate-driver, with the MC3PHACVDW running open-loop V/Hz in normal mode and switching to a sensorless estimator for high-speed spin. The 28-SOIC package fits within the appliance's IP54 sealed control box.
Được đề xuất
Compressor Drive for Refrigeration and Air-Conditioner Outdoor Units
Refrigerator and room-air-conditioner compressors use single-phase 3-wire or 3-phase PMSM motors that benefit from variable-speed drives for energy savings (typically 30-50% over fixed-speed on-off cycling). The MC3PHACVDW generates the sinusoidal PWM commanded by the appliance's main controller, modulating compressor speed to match cooling demand instead of cycling on/off. Operating from a single 4.5-5.5 V supply, the controller is easy to isolate from the high-voltage DC bus; its 105 °C thermal rating covers outdoor condenser enclosures. Practical pairings include an FSAM10SH60A or FSAM15SH60A IGBT module plus a small isolated gate-driver, with current feedback via shunt resistors into the controller's analog inputs. The result is a smoother, quieter compressor with energy ratings of up to SEER 16+ in 1.5-ton residential ACs.
Được đề xuất
Small 3-Phase Industrial Pump Inverter
Industrial process pumps for water treatment, chemical dosing, and irrigation routinely use 3-phase induction motors up to 3 HP. The MC3PHACVDW provides the open-loop V/Hz control needed for constant-pressure pumping without a complex vector-control scheme. The integrated serial interface allows the PLC or HMI to set flow rates in real time over RS-232/485, while the controller handles the PWM transitions. A complete inverter adds an IPM such as the FSAM20SH60A or FSAM30SH60A, three current-shunt resistors, and AC line-side rectification. The 28-SOIC surface-mount package is compatible with standard lead-free reflow profiles, keeping PCB assembly cost low for IP54 control cabinets.
Được đề xuất
Industrial Exhaust Fan and Ventilation Controller
Industrial exhaust fans in parking garages, paint booths, and welding shops often run at variable duty cycles tied to gas or particulate sensors. The MC3PHACVDW lets a sensor-hub microcontroller command fan speed via the serial interface while the controller outputs clean 3-phase PWM, eliminating EMI-related false triggering of smoke detectors. Its 105 °C rating and conformal-coating-friendly SOIC package suit dusty environments with periodic high-ambient conditions. The controller's programmable acceleration prevents the inrush currents that blow fuses in legacy fixed-speed installations. Typical pairings are small IPMs such as the FSAM10SH60A plus the FAN7380 gate-driver; the low BOM count keeps total inverter cost competitive with commercial-off-the-shelf V/Hz drives.
Được đề xuất
Renewable / Off-Grid Inverter-Boost Stage
Off-grid solar pumps and small wind inverters use 3-phase AC generators or motors as part of the power-generation or pumping stage. The MC3PHACVDW's V/Hz algorithm can be reversed to operate as a grid-forming inverter for sub-1 kW micro-generators, or it can drive an AC pump directly from a 48 V battery through a boost stage and an IGBT module. The serial interface allows the MPPT controller to command operating frequency in real time. In a 200-400 W solar pump deployment, the MC3PHACVDW paired with a 600 V / 10 A IPM forms the most cost-effective open-loop motor-side inverter on the market, with the energy harvested being directly proportional to pump speed. This is a popular configuration in agricultural water-pumping in emerging markets.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC3PHACVDW — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC3PHACVP | MC3PHACVDWR2 | MC33035DW | IR2133S | FAN7380MX |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Infineon | onsemi |
| Package | 28-SOIC (DW) | 28-DIP (different footprint) | 28-SOIC (DW) - same | 28-SOIC (DW) - same | 28-SOIC - same | 28-SOIC - same |
| Function | 3-phase AC controller + PWM engine | Same 3-phase AC controller + PWM engine | Same 3-phase AC controller + PWM engine (tape variant) | 3-phase BLDC controller + PWM engine | 3-phase gate-driver only | 3-phase gate-driver only |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 10 V to 30 V | 10 V to 20 V (HV gate-driver supply) | 10 V to 20 V (HV gate-driver supply) |
| Operating Temperature | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| Host Interface | Serial (SCI) | Serial (SCI) | Serial (SCI) | Analog (no serial) | Logic-level PWM input only | Logic-level PWM input only |
| Dead-Time Insertion | Integrated | Integrated | Integrated | Integrated | Programmable via DT pin | Integrated |
| Approx. 1-piece Price (2026) | $12.50 | $13.20 | $12.50 (same die) | $2.85 | $3.40 | $1.85 |
Bảo phân biệt quan trọng
- Integrated 5 V-only controller IC, no host DSP required (vsMC33035DW)
- On-chip algorithm - sensorless open-loop V/Hz capability (vsFAN7380MX)
- Drop-in 28-SOIC variant on 13-inch reel (vsMC3PHACVDWR2)
- Through-hole variant for hand-soldered prototypes (vsMC3PHACVP)
Ghi chú thiết kế
The MC3PHACVDW's VCC pin must be decoupled with a 100 nF ceramic cap placed within 5 mm of the pin plus a 10 µF bulk cap. The +5 V supply should be derived from an isolated AC-DC module (for example the RECOM RAC05-05SC) so that the controller ground can be referenced to the high-voltage DC-bus negative rail safely. The controller itself does not need any high-current path - all motor current flows through the external IGBT module.
Although the 28-SOIC (DW) is rated for -40 °C to +105 °C operation, in a sealed IPM-style assembly its dissipation is typically under 200 mW. Route a copper pour under the exposed pad region (or simply the SOIC body) of at least 1 square inch connected to GND; this keeps junction rise below 15 K at full 5 V / 50 mA controller current. If the controller is mounted next to the IGBT module, leave at least 10 mm spacing or use a thermal cutout between the two.
Place the gate-driver and IGBT module within 25 mm of the MC3PHACVDW's PWM output pins. Use a 4-layer PCB with a continuous ground plane on layer 2; route the UH/VH/WH and UL/VL/WL PWM traces as matched-length pairs with 100 Ω source termination on each side of the gate-driver input to suppress ringing during the high-di/dt switching transitions. Add 10 kΩ pull-downs on all PWM outputs to keep the inverter in a safe state at power-up before the controller initializes.
Do not assume the MC3PHACVDW can drive IGBTs directly - its PWM outputs are 5 V CMOS logic levels with sub-mA drive capability, and attempting to drive a gate with 50-100 nC of charge directly will result in severe PWM distortion and IGBT shoot-through. Always use a dedicated gate-driver IC. Likewise, do not connect the analog ISENSE, VSENSE, and TEMP inputs to voltages above VCC + 0.3 V or below GND - 0.3 V; use resistor dividers and clamping diodes to protect the controller's analog front end during DC-bus transients.
The SCI serial interface runs at typical 9600-115200 baud and is sensitive to ground bounce from the IGBT bridge. Route the SCI signals on an inner PCB layer, surrounded by GND on both sides, and add a ferrite bead on the cable between the controller board and the host MCU if the cable exceeds 100 mm. A common-mode choke on the serial lines (for example a Würth 74279204) further improves immunity against the high dv/dt of the inverter bridge.
Thông tin tuân thủ
Industrial-grade temperature rating per NXP distributor listing. RoHS and lead-free per DigiKey distributor listing. Not AEC-Q100 qualified - use NXP automotive-grade motor-control parts for under-hood applications.
