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NXP Semiconductors MC3PHACVDW
- Part No.:
- MC3PHACVDW
- Manufacturer:
- NXP Semiconductors
- Category:
- Motor Drivers, Controllers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC3PHACVDW.pdf
- Description:
- IC MOTOR DRIVER 4.5V-5.5V 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,968
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Product details
Overview
MC3PHACVDW from Freescale Semiconductor is a monolithic intelligent 3-phase AC motor controller implementing open-loop volts-per-hertz speed control with 6-channel PWM output, 4-channel ADC, and PLL-based 4 MHz oscillator. It operates from 5.0 V ±10%, supports 50/60 Hz base frequency selection, and delivers 5.29–21.16 kHz PWM frequency in standalone mode for HVAC, appliance, and pump applications.
For engineers reviewing the MC3PHACVDW datasheet, MC3PHACVDW pinout, MC3PHACVDW application, or MC3PHACVDW equivalent, this device enables rapid deployment of variable-speed motor drives without software development-leveraging analog parameter inputs (SPEED, ACCEL, MUX_IN), fault protection (FAULTIN, DC_BUS monitoring), and configurable dead time (0.5–31.875 µs) and voltage boost (0–100%).
Technical Context
The MC3PHACVDW integrates a 32-bit calculation engine for high-precision motor waveform generation, including third-harmonic injection to achieve 15% higher bus voltage utilization versus pure sine modulation. Its DSP-filtered SPEED input uses a 24-bit IIR filter with 3 ms sampling period (pole at 0.4 Hz) to suppress noise in analog speed commands.
It implements dynamic bus ripple cancellation by sampling DC_BUS at 5.3 kHz (4.0 kHz at 15.9 kHz PWM) and adjusting PWM duty cycles to compensate for line-frequency ripple and brown-out conditions. Standalone configuration relies on voltage-scaled analog inputs (e.g., 25.6 Hz/V on SPEED, 25.6 Hz/sec/V on ACCEL) and pin-strapped initialization for PWM polarity and base frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5.0 V ±10% - Ensures stable operation across industrial-grade 5 V rails with built-in low-voltage reset at 3.80–4.3 V. |
| PWM Frequency Range | 5.291–21.164 kHz - Four discrete selectable frequencies via MUX_IN voltage; enables EMI optimization and gate driver compatibility. |
| Dead Time Range | 0.5–31.875 µs - Programmable blanking interval prevents shoot-through in complementary MOSFET/IGBT half-bridges. |
| Speed Control Resolution | 4 mHz - Achieved via 32-bit internal calculations, enabling smooth low-speed torque response down to 1 Hz. |
| ADC Channels | 4-channel 10-bit - Simultaneously monitors SPEED, ACCEL, DC_BUS, and MUX_IN for real-time closed-loop-like adaptation. |
| Oscillator Frequency | 4.00 ±1% MHz - PLL-based clock generation rejects noise spikes on OSC1/OSC2, ensuring timing integrity in noisy motor environments. |
| Fault Response Time | Immediate PWM disable on FAULTIN high - Hardware-level shutdown (<1 µs latency) protects power stage during overcurrent, overvoltage, or thermal faults. |
Pinout & Package
MC3PHACVDW is housed in a plastic 28-pin SOIC package (body width 7.6 mm, lead pitch 1.27 mm), compatible with standard surface-mount reflow profiles and offering improved thermal performance over DIP variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Digital power supply and ground | Separate 5 V digital rail; IMVDD ≤ 100 mA, IMVSS ≤ 100 mA - defines maximum system power budget. |
| VDDA / VSSA | Analog power supply and ground | Isolated analog domain for ADC and PLL; requires local decoupling to maintain SNR > 60 dB. |
| PWM_U_TOP / PWM_U_BOT PWM_V_TOP / PWM_V_BOT PWM_W_TOP / PWM_W_BOT | Complementary PWM outputs per phase | Drive external gate drivers; polarity configurable at startup - determines active-high vs. active-low logic for top/bottom switches. |
| SPEED / ACCEL / MUX_IN / DC_BUS | Analog parameter inputs | Voltage-scaled interfaces (25.6 Hz/V, 25.6 Hz/sec/V, etc.) - eliminate need for microcontroller ADC or firmware calibration. |
| FAULTIN / DT_FAULTOUT / RBRAKE | Fault signaling and protection | Hardware interrupt inputs/outputs - enable immediate shutdown, retry timing, and passive braking without software intervention. |
| OSC1 / OSC2 / PLLCAP | PLL clock interface | Supports 4 MHz crystal or ceramic resonator; PLLCAP = 0.1 µF typical - sets loop bandwidth for jitter < 100 ps RMS. |
| VBOOST_MODE / PWMFREQ_RxD / RETRY_TxD / DT_FAULTOUT | Mode and parameter configuration | Multi-function pins - sampled at startup to select standalone vs. PC master mode and configure operating parameters via analog voltage levels. |
Key Features
| Feature | Design Value |
|---|---|
| Third-harmonic injected PWM | Increases effective bus voltage utilization by 15% - delivers full torque at lower DC link voltage, reducing I²R losses in motor windings. |
| Dynamic bus ripple cancellation | Compensates for 100/120 Hz ripple on DC_BUS input in real time - maintains constant motor current despite rectifier-induced voltage sag. |
| Standalone analog configuration | No firmware required - all operational parameters (speed, acceleration, dead time, voltage boost, retry timeout) set via resistive dividers or potentiometers on analog pins. |
| High-side bootstrapping support | Automatically applies 100 ms of 50% low-side-only PWM at startup - replenishes bootstrap capacitor charge before enabling high-side drive, preventing shoot-through. |
| Velocity pipelining | Generates new interpolated velocity values every 189 µs (252 µs at 15.9 kHz PWM) - eliminates ratcheting and ensures ultra-smooth torque transitions during acceleration/deceleration. |
Applications
| Residential HVAC Blower Control | Commercial Dishwasher Pump Drive |
|---|---|
Use Scenario: Variable-speed blower in split-system air handlers requiring quiet, energy-efficient airflow modulation across 1–128 Hz range. IC Role / Device Role / Timing Role: MC3PHACVDW acts as the sole motor control ASIC - generating third-harmonic PWM waveforms, filtering analog speed commands, and managing bus ripple compensation without host processor involvement. Use Value: Eliminates need for MCU + gate driver + op-amp signal conditioning; reduces BOM count by ≥7 components while maintaining 4 mHz speed resolution and <0.5% speed error over temperature. | Use Scenario: High-reliability pump motor in undercounter dishwashers subject to frequent start/stop cycles, thermal stress, and line voltage fluctuations. IC Role / Device Role / Timing Role: MC3PHACVDW serves as fault-aware motor controller - monitoring DC_BUS for brown-out events, disabling PWM within microseconds on FAULTIN assertion, and auto-retrying after user-configurable timeout. Use Value: Enables Class A energy rating via precise volts/Hertz profiling and regenerative braking control; extends pump life by preventing torque surges during zero-crossing transitions. |
| Industrial Laundry Drum Drive | Process Control Conveyor System |
Use Scenario: 3-phase induction motor driving rotating drum in commercial washers, requiring robust acceleration control (0.5–128 Hz/sec) and voltage boost at low speeds. IC Role / Device Role / Timing Role: MC3PHACVDW functions as analog-programmable motion controller - interpreting ACCEL pin voltage to dynamically adjust ramp rate and applying voltage boost up to 100% to maintain magnetizing current below 10 Hz. Use Value: Delivers consistent drum torque across detergent viscosity changes and load imbalances; avoids mechanical stress via smooth voltage transitions during ±1 Hz speed crossings. | Use Scenario: Modular conveyor belt system in food processing plants needing interoperable motor control with minimal wiring - using analog signals instead of digital buses. IC Role / Device Role / Timing Role: MC3PHACVDW operates as distributed motor node - accepting SPEED and FWD/START commands over twisted-pair analog lines, performing local fault detection, and driving isolated gate drivers. Use Value: Reduces installation cost by eliminating RS-485 transceivers and protocol stacks; supports hot-swap replacement with pre-calibrated potentiometer settings stored in external EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase motor controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrated 3-phase gate driver + Cortex-M0 MCU; requires firmware development; supports closed-loop FOC. | Targeted at designs needing sensorless FOC, real-time communication (UART/SPI), and field-oriented control. | Select STSPIN32F0B only if closed-loop torque control, programmable diagnostics, or multi-motor synchronization are required - not for drop-in replacement. |
| TI DRV8301 | Three-phase gate driver only; no integrated motor control logic, PWM generator, or ADC - requires external MCU. | Used in high-power (>1 kW) systems where discrete control architecture and thermal management flexibility are prioritized. | Choose DRV8301 when designing custom motor algorithms or scaling beyond 500 W; MC3PHACVDW provides complete control subsystem in single SOIC. |
Compared with STSPIN32F0B and DRV8301, MC3PHACVDW uniquely delivers fully autonomous 3-phase motor control without software - reducing time-to-market for cost-sensitive, low-to-mid power (<500 W) applications where analog configurability and hardware fault response are critical.
Availability
MC3PHACVDW is available at Aetrix Electronics and suitable for residential HVAC, commercial appliance, industrial pump, and process control applications requiring stable component supply and long-term obsolescence management.
Supply support for MC3PHACVDW includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Freescale Semiconductor (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded controllers, analog, and mixed-signal ICs for automotive, industrial, and consumer markets.
The MC3PHAC product line was designed to deliver turnkey 3-phase AC motor control for cost-sensitive, software-constrained applications - targeting appliance, HVAC, and light industrial equipment manufacturers seeking rapid design-in without firmware investment.
FAQ
What is the operating temperature range for the MC3PHACVDW?
The MC3PHACVDW is rated for continuous operation from –40°C to +105°C ambient temperature, matching the industrial-grade specification defined in Table 1 of the Freescale datasheet Rev. 2. This range applies specifically to the SOIC package variant and ensures reliable performance in enclosed HVAC enclosures and commercial appliance control boards where thermal dissipation is limited.
Does the MC3PHACVDW require external firmware or software to operate?
No, the MC3PHACVDW does not require external firmware or software to operate in standalone mode. All core motor control functions - including volts-per-Hertz profiling, PWM generation, fault handling, and parameter configuration - are implemented in hardware and configured via analog voltage inputs (SPEED, ACCEL, MUX_IN) and pin-strapped initialization. The MC3PHACVDW is explicitly designed for applications with limited or no software resources.
How is PWM polarity and base frequency selected on the MC3PHACVDW?
PWM polarity and base frequency (50 Hz or 60 Hz) are selected during power-on initialization by connecting exactly one of four pins - MUX_IN, SPEED, ACCEL, or DC_BUS - to the PWMPOL_BASEFREQ pin (Pin 8). The specific connection determines both parameters simultaneously, as defined in Table 3 of the datasheet. This configuration is latched at startup and remains fixed until the next reset event.
What protective features does the MC3PHACVDW include?
The MC3PHACVDW includes hardware-level protection features: immediate PWM disable on FAULTIN high; DC_BUS voltage monitoring with programmable thresholds; lost-clock detection that resets the device; low-VDD reset at 3.80–4.3 V; and regeneration-aware bus ripple cancellation. These operate autonomously without software, ensuring fail-safe behavior in motor drive systems.
Can the MC3PHACVDW be used with different PWM frequencies during motor operation?
Yes, the MC3PHACVDW supports dynamic switching between four discrete PWM frequencies (5.291, 10.582, 15.873, and 21.164 kHz) while the motor is running. Frequency selection is performed by applying corresponding voltage ranges to the MUX_IN pin while PWMFREQ_RxD is driven low - enabling real-time EMI optimization or acoustic noise reduction without stopping the motor.
MC3PHACVDW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- AC, Synchronous
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - Half Bridge (3)
- Interface:
- Serial
- Technology:
- IGBT
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
MC3PHACVDW FAQ
1.How can I place an order for MC3PHACVDW through Aetrix?
Please submit a Request for Quotation (RFQ) for MC3PHACVDW on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC3PHACVDW reliable?
The price and inventory of MC3PHACVDW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC3PHACVDW is usually 5 days.
3.What payment methods are accepted for MC3PHACVDW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC3PHACVDW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC3PHACVDW?
MC3PHACVDW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC3PHACVDW order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC3PHACVDW?
For technical support, including MC3PHACVDW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC3PHACVDW requirements.
6.How does Aetrix verify that MC3PHACVDW is sourced from the original manufacturer or authorized distributors?
All MC3PHACVDW products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC3PHACVDW meets industry standards.
7.What is the process for return or replacement of MC3PHACVDW?
All MC3PHACVDW units undergo pre-shipment inspection (PSI). If there is an issue with MC3PHACVDW, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC3PHACVDW part is unused and in its original packaging.
Return procedure for MC3PHACVDW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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