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Infineon Technologies IRMCK172MTR
- Part No.:
- IRMCK172MTR
- Manufacturer:
- Infineon Technologies
- Category:
- Motor Drivers, Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
IRMCK172MTR.pdf
- Description:
- IC MOTOR DRIVER 3V-3.6V 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,190
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Product details
Overview
IRMCK172MTR from International Rectifier is a high-performance, one-time programmable (OTP) sensorless motor control IC integrating a dedicated Flexible Motion Control Engine (MCETM) and an 8-bit 8051 microcontroller in a single QFN48 package. It delivers 12-bit A/D conversion at 2 µs, supports induction and PM motor control via single-shunt current reconstruction, and operates at up to 128 MHz internal clock with 3.3 V supply. Used in inverter-driven home appliances such as washing machines and HVAC blowers.
For engineers reviewing the IRMCK172MTR datasheet, IRMCK172MTR pinout, IRMCK172MTR application, or IRMCK172MTR equivalent, key selection criteria include MCETM-based sensorless algorithm programmability, dual-shunt/single-shunt current sensing capability, integrated 32 KB OTP ROM, 12-bit/2 µs ADC performance, and JTAG-debuggable 8051 core for system-level I/O and HMI control.
Technical Context
The IRMCK172MTR implements a hardware-accelerated motion control architecture where the MCETM handles real-time sinusoidal commutation, angle estimation, and Space Vector PWM generation independently of the 8051 core. Its analog front-end includes dedicated op-amps and comparators for shunt-based current feedback, with configurable gain and offset calibration paths.
It supports loss-minimization SVPWM with 20-bit carrier resolution synchronized to SYSCLK, and integrates dual serial interfaces (UART + I²C/SPI) for host communication while maintaining deterministic timing for motor control loops - critical for stable operation under variable load and voltage droop conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max internal clock | 128 MHz - enables sub-microsecond loop execution for high-speed PMSM/IM sensorless control |
| ADC resolution & speed | 12 bits / 2 µs - supports precise current/voltage sampling within tight PWM dead-time constraints |
| OTP ROM size | 32 KB - stores complete sensorless control algorithms and application firmware without external memory |
| PWM carrier resolution | 20 bits relative to SYSCLK - provides fine-grained duty-cycle control for low-acoustic-noise motor drive |
| Digital I/O count | 10 pins - sufficient for GPIO, reset, gatekill, and status signaling in compact inverter designs |
| Supply voltage | 3.3 V ±5% - matches standard logic-level interface requirements and reduces level-shifting complexity |
| Operating current | 60 mA max - enables thermal design within QFN48 package limits for sealed appliance enclosures |
Pinout & Package
IRMCK172MTR is housed in a lead-free 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad for enhanced power dissipation in motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 / VDDCAP | Core power supply | 3.3 V digital supply with local decoupling capacitor support for noise-sensitive MCETM operation |
| AVDD / AVSS | Analog power domain | Isolated analog rail for ADC, op-amps, and current sensing to prevent digital switching noise coupling |
| IFB+, IFB−, IFBO | Current feedback input | Differential shunt amplifier inputs supporting single-leg or two-leg shunt configurations with programmable gain |
| PWMUL–PWMWH | Motor phase PWM outputs | Six complementary PWM outputs with programmable dead-time insertion for 3-phase inverter gate driving |
| GATEKILL | Hardware fault shutdown | Asynchronous active-low signal to immediately disable all PWM outputs during overcurrent or thermal events |
| JTAG_TCK/TMS/TDO/TDI | Debug interface | IEEE 1149.1-compliant port enabling real-time 8051 core debugging and OTP programming verification |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Motion Control Engine (MCETM) | Dedicated hardware sequencer with pre-built angle estimator and SVPWM generator - eliminates need for custom DSP coding |
| Single-shunt current reconstruction | Integrated analog circuitry and algorithm support - reduces BOM cost and PCB area vs. three-shunt solutions |
| Graphical programming via MATLAB/Simulink | Drag-and-drop control block library - accelerates development of field-oriented control (FOC) and sensorless startup routines |
| Loss-minimization SVPWM | Real-time torque ripple reduction through optimized vector sequencing - improves motor efficiency and acoustic performance |
| Embedded 8051 microcontroller | 32 MHz clock, UART/I²C/SPI, JTAG - handles user interface, diagnostics, and communication without external MCU |
Applications
| Washing Machine Drum Drive | HVAC Blower Motor Control |
|---|---|
Use Scenario: Variable-speed direct-drive drum motor requiring smooth startup, low-noise spin cycles, and overload protection. IC Role / Device Role / Timing Role: Primary sensorless FOC controller executing real-time current/voltage loop closure and commutation sequencing. Use Value: Enables >90% motor efficiency across 0–12,000 RPM range using only one shunt resistor and no position sensor. | Use Scenario: Compact ducted blower in residential heat pump systems needing quiet, responsive airflow modulation. IC Role / Device Role / Timing Role: Integrated motion controller and system manager - runs motor algorithm while handling thermostat commands via UART. Use Value: Reduces component count by consolidating 8051 firmware, ADC, PWM, and current sensing into one QFN48 IC. |
| Refrigerator Compressor Drive | Dishwasher Circulation Pump |
Use Scenario: Inverter-controlled compressor requiring soft-start, stall detection, and refrigerant pressure-adaptive speed regulation. IC Role / Device Role / Timing Role: Sensorless IM controller with embedded thermal monitoring and adaptive loss minimization. Use Value: Achieves <2% speed error across full load range using MCETM's built-in angle estimator and 2 µs ADC sampling. | Use Scenario: High-reliability circulation pump operating in humid, thermally constrained cabinet environments. IC Role / Device Role / Timing Role: Fault-tolerant motor controller with GATEKILL hardware shutdown and UVLO protection. Use Value: Ensures safe shutdown within 100 ns of overcurrent detection - prevents MOSFET failure during pump jam events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensorless motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRAMX16UP60B | Integrated 600 V 3-phase inverter bridge + driver + MCU; no MCETM or graphical programming | Targeted at lower-cost, fixed-algorithm BLDC drives; lacks OTP-based FOC flexibility | Choose when board space is critical and sensorless startup requirements are basic |
| STSPIN32F0A | ARM Cortex-M0+ core, 32-bit processing, no dedicated motion engine; relies on software-based observer | Requires significant firmware development for sensorless FOC; higher CPU load impacts real-time determinism | Prefer when existing STM32 ecosystem and HAL libraries are already deployed |
Compared with IRAMX16UP60B and STSPIN32F0A, IRMCK172MTR uniquely combines hardware-accelerated sensorless control (MCETM), graphical algorithm development, and OTP-based field update capability - making it optimal for high-volume, differentiated appliance motor platforms where time-to-market and algorithm differentiation matter.
Availability
IRMCK172MTR is available at Aetrix Electronics and suitable for washing machine drum drives, HVAC blower systems, refrigerator compressors, and dishwasher circulation pumps requiring stable component supply and long-term production continuity.
Supply support for IRMCK172MTR 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
International Rectifier (now part of Infineon Technologies since 2015) was a pioneer in power semiconductors and motion control ICs, known for high-efficiency motor drive solutions targeting white goods and industrial automation.
The IRMCK172MTR belongs to IR's Motion Control Engine (MCE) product line, designed specifically to replace discrete DSP + MCU + analog signal chain implementations in cost-sensitive, high-volume appliance inverters.
FAQ
What programming tools are required for IRMCK172MTR?
The IRMCK172MTR requires International Rectifier's MCE Designer software integrated with MATLAB/Simulink for graphical algorithm development. Firmware is compiled and downloaded via JTAG using the IR Link programmer. No standalone C compiler is needed - control logic is built using drag-and-drop functional blocks including PLLs, observers, and PWM modulators.
Does IRMCK172MTR support both PMSM and induction motors?
Yes - the MCETM includes pre-verified control blocks for both interior/surface permanent magnet synchronous motors and induction motors. Motor type selection is configured at compile time in MCE Designer, with separate parameter sets for rotor time constant, stator resistance, and flux linkage stored in OTP ROM.
Can IRMCK172MTR operate without external current sensors?
Yes - it supports single-shunt and two-shunt current reconstruction using internal op-amps and comparator circuits. No external amplifiers or isolated sensors are required. The analog front-end includes programmable gain stages and offset calibration registers to compensate for shunt tolerance and PCB layout asymmetry.
What is the role of the GATEKILL pin in system safety?
GATEKILL is an asynchronous, hardware-level shutdown input that forces all six PWM outputs to inactive state within 100 ns. It connects directly to external fault signals (e.g., overcurrent comparator output or thermal shutdown IC) and bypasses software polling - ensuring fail-safe motor stop during catastrophic events like short-circuit or overheating.
IRMCK172MTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- iMOTION™, MCE™
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- AC, Induction, Synchronous
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - Half Bridge (3)
- Interface:
- I2C, RS-232, SPI
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Appliance
- Current - Output:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
IRMCK172MTR FAQ
1.How can I place an order for IRMCK172MTR through Aetrix?
Please submit a Request for Quotation (RFQ) for IRMCK172MTR 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 IRMCK172MTR reliable?
The price and inventory of IRMCK172MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRMCK172MTR is usually 5 days.
3.What payment methods are accepted for IRMCK172MTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRMCK172MTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRMCK172MTR?
IRMCK172MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRMCK172MTR 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 IRMCK172MTR?
For technical support, including IRMCK172MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRMCK172MTR requirements.
6.How does Aetrix verify that IRMCK172MTR is sourced from the original manufacturer or authorized distributors?
All IRMCK172MTR 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 IRMCK172MTR meets industry standards.
7.What is the process for return or replacement of IRMCK172MTR?
All IRMCK172MTR units undergo pre-shipment inspection (PSI). If there is an issue with IRMCK172MTR, 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 IRMCK172MTR part is unused and in its original packaging.
Return procedure for IRMCK172MTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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