Infineon Technologies IMC301AF048XUMA1

Overview

IMC301AF048XUMA1 from Infineon Technologies is a high-integration motor control IC combining a Motion Control Engine (MCE) for PMSM field-oriented control and an independent 32-bit ARM® Cortex®-M0 microcontroller. It supports sensorless or Hall-based rotor position sensing, single-shunt current measurement, and delivers certified Class B safety per IEC/UL 60730-1 - deployed in variable-speed compressors and fans.

For engineers reviewing the IMC301AF048XUMA1 datasheet, IMC301AF048XUMA1 pinout, IMC301AF048XUMA1 application, or IMC301AF048XUMA1 equivalent, key selection factors include integrated MCE scripting capability, 96 MHz MATH co-processor for real-time trigonometric computation, CCU8-based PWM generation with <100 ns dead-time control, and LQFP-48 package compatibility with industrial thermal cycling requirements.

Technical Context

The IMC301AF048XUMA1 implements dual-control architecture: the dedicated Motion Control Engine handles real-time motor commutation and protection logic independently of the ARM® Cortex®-M0 core, which manages system-level tasks including UART/CAN communication, user interface, and PFC coordination. This separation ensures deterministic timing for FOC loops while enabling flexible application-layer customization via the integrated script engine.

Its analog frontend includes a 12-bit, 1 MSPS ADC with dual sample-and-hold stages, six out-of-range comparators for overcurrent detection, and three fast analog comparators with <100 ns response - all synchronized to CCU8 timer events. The device uses factory-trimmed 48/96 MHz internal oscillators and supports external crystal or ceramic resonator input on OSCIN/OSCOUT pins.

Key Specifications

Pinout & Package

IMC301AF048XUMA1 is housed in a PG-LQFP-48-11 package: thermally enhanced, lead-free, RoHS-compliant LQFP with exposed thermal pad. Pin layout follows Infineon's standardized IMC301A pin configuration (Datasheet Rev. 1.3, Section 2.3), supporting single-motor control with integrated gate driver interface signals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control applications.

Compared with IMC302A, IMC301A offers lower power consumption and simpler thermal design for inverter-only systems; compared with IMC301B, it provides proven stability in legacy applications but lacks newer sensorless enhancements - making IMC301A optimal for cost-sensitive, volume-manufactured appliances with mature motor profiles.

Availability

IMC301AF048XUMA1 is available at Aetrix Electronics and suitable for refrigeration compressors, HVAC fans, circulating pumps, and small appliance motor drives requiring stable component supply across multi-year production cycles.

Supply support for IMC301AF048XUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The iMOTION™ IMC300 family targets cost-sensitive, high-volume variable-speed motor applications - designed to replace discrete MCU + analog + gate driver combinations with a single-chip solution delivering certified safety and rapid time-to-market.

FAQ

Does IMC301AF048XUMA1 support encoder-based position feedback?

No - the IMC301AF048XUMA1 does not include hardware interfaces for incremental or absolute encoders. Its position sensing is limited to Hall sensors (analog or digital) and sensorless estimation using back-EMF or high-frequency injection. Encoder support requires external signal conditioning and CPU-based interpolation, which is not implemented in the MCE or standard firmware libraries.

What is the maximum achievable PWM frequency with CCU8 on IMC301AF048XUMA1?

The CCU8 module supports PWM frequencies up to 200 kHz in center-aligned mode when driven by the 96 MHz system clock with 1:1 prescaler. At 200 kHz, minimum pulse width is 2.5 ns, but practical limits are imposed by gate driver propagation delay and MOSFET switching characteristics - typical inverter designs operate between 10–25 kHz for thermal and EMI reasons.

Can the ARM® Cortex®-M0 core access the MCE configuration registers directly?

Yes - the MCE registers reside in the APB1 peripheral address space and are fully accessible by the Cortex®-M0 core via standard memory-mapped writes. However, runtime modification of active MCE parameters (e.g., PI gains during FOC execution) is restricted to safe update windows defined by the MCE synchronization protocol to prevent control instability.

Is external crystal required for IMC301AF048XUMA1 operation?

No - the device operates reliably using its factory-trimmed internal 48 MHz oscillator, which meets timing requirements for UART, CAN, and MCE functions. An external crystal (1–20 MHz) is optional and used only when higher frequency stability (<±50 ppm) is needed for synchronous communication or precise timing-critical features like RTC alarm wake-up.