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Infineon Technologies IRMCF312TR
- Part No.:
- IRMCF312TR
- Manufacturer:
- Infineon Technologies
- Category:
- Motor Drivers, Controllers
- Package:
- 100-LQFP
- Datasheet:
-
IRMCF312TR.pdf
- Description:
- IC MOTOR DRIVER 100QFP
- Quantity:
- Payment:
- Shipping:
Inventory:722
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Product details
Overview
IRMCF312 from Infineon Technologies (formerly International Rectifier) is a dual-channel sensorless motor control IC integrating a hardware Motion Control Engine (MCE) and an 8-bit 8051 microcontroller for permanent magnet AC motor control in appliances. It delivers 11 μs typical sensorless computation time, supports interior/surface PM motors, enables single-shunt current reconstruction without external op-amps, and operates with 60 MHz max crystal and 128 MHz internal SYSCLK.
For engineers reviewing the IRMCF312 datasheet, IRMCF312 pinout, IRMCF312 application, or IRMCF312 equivalent, key selection criteria include MCE-based sinusoidal SVPWM execution latency, dual-port RAM coupling between MCE and 8051, 11-channel 12-bit ADC with 2 μs conversion, 36 I/O capability, and QFP100 pin compatibility with IRMCK312 for production transition.
Technical Context
The IRMCF312 implements two tightly coupled computation domains: a dedicated Motion Control Engine (MCE) executing pre-defined sensorless control blocks-including Angle Estimator, Vector Rotator, and Low-Loss SVPWM-in hardware, and an 8051 core running at 2-cycle instruction speed (60 MIPS @ 120 MHz). Both share dual-port RAM for real-time signal exchange.
Its analog interface includes 11-channel 12-bit ADC (5 buffered, 6 unbuffered), three 8-bit analog PWM outputs, and integrated single-shunt current feedback reconstruction circuitry-eliminating external op-amps. Digital I/O operates at 3.3V CMOS levels, with JTAG, UART×2, I²C, and SPI interfaces supporting host communication and debug.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max crystal frequency | 60 MHz - sets system timing reference for PLL-based clock generation |
| Max SYSCLK frequency | 128 MHz - enables high-speed MCE and 8051 operation with deterministic timing |
| Sensorless computation time | 11 μs typ - ensures fast closed-loop response for high-RPM appliance motors |
| A/D channels & resolution | 11 × 12-bit - provides sufficient analog sensing for voltage, current, temperature, and position estimation |
| A/D conversion speed | 2 μs - supports sampling within tight PWM switching intervals for real-time control |
| GATEKILL latency | 2 μs (digital filtered) - guarantees rapid fault shutdown to protect power stage MOSFETs |
| Program RAM size | 48 KB loaded from external EEPROM - enables flexible firmware updates and algorithm iteration during development |
| Max I/O count | 36 - accommodates dual-motor gate drive signals, status inputs, UI controls, and comms lines |
Pinout & Package
IRMCF312 is housed in a lead-free 100-pin Quad Flat Package (QFP100) with 0.5 mm pitch, footprint-compatible with IRMCK312 for seamless design migration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VSSA | Analog power supply/ground | Separate 3.3V analog domain for ADC and analog PWM references; requires local decoupling |
| ADIN0–ADIN10 | Analog input channels | 11 dedicated pins for voltage/current/temperature sensing; five buffered (0–1.2V), six unbuffered (0–1.2V) |
| PWM0–PWM2 | Analog output (PWM) | Three 8-bit PWM outputs for auxiliary control (e.g., fan speed, LED dimming, heater modulation) |
| GATE0–GATE5 | Gate drive outputs | Six dedicated outputs for dual three-phase inverter bridge control (3 per motor) |
| SHUNT_IN | Single shunt current sense input | Direct connection point for shunt resistor; feeds hardware reconstruction logic eliminating external op-amps |
| JTAG_TCK/TMS/TDO/TDI | JTAG debug interface | 4-pin boundary-scan port enabling full emulation, breakpoint debugging, and flash programming of 8051 code |
| UART0_TX/RX, UART1_TX/RX | Serial communication | Dual UARTs support host MCU communication and diagnostic logging simultaneously |
| I2C_SDA/SCL, SPI_MOSI/MISO/SCLK/CS | Peripheral interfaces | Support external EEPROM, sensors, or display controllers without additional protocol translation |
Key Features
| Feature | Design Value |
|---|---|
| Motion Control Engine (MCE) | Hardware-accelerated sensorless control with pre-built Angle Estimator and SVPWM blocks reduces software overhead and improves loop determinism |
| Single-shunt current reconstruction | On-chip analog/digital circuitry eliminates need for external op-amps and ADC front-end components, lowering BOM cost and layout complexity |
| Dual computation architecture | MCE handles real-time motor control while 8051 manages UI, comms, and supervisory logic-enabling true parallel task execution |
| Graphical programming via MATLAB/Simulink | Drag-and-drop MCE algorithm configuration replaces low-level C coding, accelerating control law prototyping and validation |
| Pin compatibility with IRMCK312 | Same QFP100 footprint and signal mapping allows direct PCB reuse when transitioning from development (RAM-based) to production (OTP-ROM) |
Applications
| Washing Machine Drum Drive | Refrigerator Compressor Control |
|---|---|
Use Scenario: Variable-speed inverter-driven drum motor requiring smooth start/stop, spin balancing, and energy-efficient torque control across load variations. IC Role / Device Role / Timing Role: Primary sensorless motor controller executing real-time field-oriented control (FOC) using single-shunt current feedback and angle estimation. Use Value: Eliminates hall sensors and external op-amps; achieves <11 μs control loop latency enabling precise ripple suppression at high RPM. | Use Scenario: Hermetic compressor motor in variable-capacity refrigeration systems demanding quiet operation, wide speed range (10–8000 RPM), and thermal protection. IC Role / Device Role / Timing Role: Dual-channel controller managing both compressor and condenser fan motors with independent SVPWM generation and shared ADC resources. Use Value: Integrated 11-channel ADC and dual MCE instances allow synchronized sensing and control without external multiplexing or timing arbitration. |
| Dishwasher Circulation Pump | Range Hood Blower System |
Use Scenario: High-efficiency brushless DC pump motor requiring adaptive flow control, dry-run detection, and overcurrent protection in compact enclosure. IC Role / Device Role / Timing Role: Sensorless FOC controller using reconstructed phase currents and real-time thermal monitoring via ADC channels. Use Value: 2 μs GATEKILL latency ensures immediate power-stage disable during stall or short-circuit events, meeting IEC 60335 safety requirements. | Use Scenario: Multi-speed blower with automatic grease-sensing airflow adjustment and noise-optimized commutation profiles. IC Role / Device Role / Timing Role: Motor controller coordinating PWM fan speed, analog sensor inputs (pressure, temp), and user interface via 8051-managed UART/I²C. Use Value: Three 8-bit analog PWM outputs drive auxiliary loads (LED indicators, heating elements) without adding discrete DACs or timers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensorless permanent magnet motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRMCK312TR | OTP-ROM instead of 48KB program RAM; identical pinout, MCE, and peripheral set | Targeted for volume production where firmware is finalized and update flexibility is not required | Select for cost-sensitive, high-volume appliance programs with stable control algorithms |
| STSPIN32F0B | Integrated 3-phase gate driver + Cortex-M0+ core; no separate MCE; lower ADC channel count (7) and resolution (10-bit) | Better suited for single-motor, space-constrained designs with less complex sensorless tuning needs | Select when board area is critical and dual-motor coordination is unnecessary |
Compared with IRMCK312TR, IRMCF312 offers field-upgradable firmware via external EEPROM but higher BOM cost; versus STSPIN32F0B, it provides superior computational determinism, dual-motor support, and richer analog sensing-justifying use in premium-tier appliance platforms.
Availability
IRMCF312 is available at Aetrix Electronics and suitable for washing machine drum drives, refrigerator compressor control, dishwasher circulation pumps, and range hood blower systems requiring stable component supply and long-term design-in support.
Supply support for IRMCF312 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
Infineon Technologies is a global semiconductor leader specializing in power management, automotive, and industrial control solutions, with deep expertise in motor control ICs and high-reliability packaging.
The IRMCF312 belongs to Infineon's Motion Control IC product line, engineered specifically for cost-effective, high-performance inverter-based appliance motor control with emphasis on sensorless FOC, integration density, and development-to-production scalability.
FAQ
What is the role of the Motion Control Engine (MCE) in IRMCF312?
The Motion Control Engine is a dedicated hardware block implementing fixed-function sensorless control primitives-including Angle Estimator, Vector Rotator, and Low-Loss SVPWM-without CPU intervention. It executes control loops in 11 μs using 16-bit signed arithmetic, offloading real-time computation from the 8051 core to ensure deterministic timing and reduce software complexity.
Can IRMCF312 support dual independent motors with separate current sensing?
Yes-IRMCF312 supports dual motor control using a single shunt resistor per motor via time-multiplexed sampling and hardware reconstruction. Its 11-channel ADC and dual MCE instances enable independent FOC execution for each motor, with shared resources coordinated through dual-port RAM and programmable sequencing in the graphical compiler.
Is external memory required for IRMCF312 operation?
Yes-IRMCF312 requires an external EEPROM to load its 48 KB program RAM at startup. The 8051 firmware is stored externally and transferred on power-up; no internal non-volatile program storage exists. This enables field updates but mandates proper EEPROM initialization and error-checking in the boot sequence.
How does IRMCF312 handle fault protection during motor operation?
IRMCF312 integrates digital-filtered GATEKILL with 2 μs latency, triggered by hardware-monitored conditions including overcurrent (via SHUNT_IN), overtemperature (ADC channel), and UVLO. Fault signals directly disable all six gate outputs without CPU involvement, ensuring compliance with IEC 60335 Class II isolation and response-time requirements for household appliances.
IRMCF312TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- MCE™
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- AC, Synchronous
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - Half Bridge (6)
- Interface:
- I2C, RS-232, SPI
- Technology:
- Power MOSFET, IGBT
- Step Resolution:
- -
- Applications:
- Appliance
- Current - Output:
- -
- Voltage - Supply:
- 1.62V ~ 1.98V, 3V ~ 3.6V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-QFP (14x14)
IRMCF312TR FAQ
1.How can I place an order for IRMCF312TR through Aetrix?
Please submit a Request for Quotation (RFQ) for IRMCF312TR 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 IRMCF312TR reliable?
The price and inventory of IRMCF312TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRMCF312TR is usually 5 days.
3.What payment methods are accepted for IRMCF312TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRMCF312TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRMCF312TR?
IRMCF312TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRMCF312TR 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 IRMCF312TR?
For technical support, including IRMCF312TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRMCF312TR requirements.
6.How does Aetrix verify that IRMCF312TR is sourced from the original manufacturer or authorized distributors?
All IRMCF312TR 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 IRMCF312TR meets industry standards.
7.What is the process for return or replacement of IRMCF312TR?
All IRMCF312TR units undergo pre-shipment inspection (PSI). If there is an issue with IRMCF312TR, 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 IRMCF312TR part is unused and in its original packaging.
Return procedure for IRMCF312TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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