Infineon Technologies IM241M6S1JALMA1

Overview

IM241M6S1JALMA1 from Infineon is a CIPOS™ Micro Intelligent Power Module (IPM) integrating six reverse-conducting RCD2 IGBTs, three half-bridge gate drivers, bootstrap circuitry, fault reporting, and an NTC thermistor in a single SOP-29x12 surface-mount package. It delivers 600 V blocking voltage, supports 3.3 V/5.0 V logic inputs, and features open-emitter low-side outputs for phase current sensing - designed specifically for high-efficiency, low-EMI motor drives in fans and small home appliance pumps.

For engineers reviewing the IM241M6S1JALMA1 datasheet, IM241M6S1JALMA1 pinout, IM241M6S1JALMA1 application, or IM241M6S1JALMA1 equivalent, key selection criteria include its slow-speed "J" variant optimized for EMI reduction, isolated 2000 VRMS rating, programmable fault-clear timing via RFE pin, and accessible low-side emitter pins (NU/NV/NW) for shunt-based current monitoring in three-phase inverter topologies.

Technical Context

This IPM implements a fully integrated three-phase inverter stage with reverse-conducting IGBTs and high-voltage IC (HVIC) gate drivers. Each half-bridge includes shoot-through prevention logic with ~300 ns built-in deadtime and Schmitt-trigger inputs compatible with 3.3 V microcontrollers.

The module integrates bootstrap power generation for high-side drivers, overcurrent detection via ITRIP pin (500 ns input filter), under-voltage lockout on both VDD (10.9–11.1 V thresholds) and VB supplies, and temperature feedback through a factory-calibrated NTC connected to VTH pin referenced to VSS.

Key Specifications

Pinout & Package

IM241M6S1JALMA1 is housed in a surface-mount SOP package measuring 29 mm × 12 mm, with 23-pin layout and RoHS-compliant lead-free terminations. The package provides full electrical isolation between power and control sections.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar three-phase inverter applications.

Compared with FSB50550 and IRSM808-205MH, IM241M6S1JALMA1 uniquely combines slow-switching EMI control, hardware fault timing, and open-emitter current sensing in a compact SOP-29x12 package - reducing BOM count and enabling faster time-to-market for certified appliance motor drives.

Availability

IM241M6S1JALMA1 is available at Aetrix Electronics and suitable for brushless DC fan control, small appliance water pump drive, and induction motor exhaust systems requiring stable component supply and long-term industrial lifecycle support.

Supply support for IM241M6S1JALMA1 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 German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in silicon carbide and intelligent power modules.

The CIPOS™ Micro product line targets compact, high-reliability motor drives for white goods and HVAC - emphasizing integration, thermal robustness, and EMI compliance without sacrificing control flexibility.

FAQ

What is the purpose of the RFE pin on IM241M6S1JALMA1?

The RFE pin serves three functions: it acts as a fault output (pulled low during overcurrent or VDD undervoltage), an enable input (driven low by MCU to disable the IPM), and a programmable fault-clear timer input. An external RC network connected to this pin determines the auto-recovery delay after fault clearance - for example, 1.2 MΩ and 1 nF yield ~1.7 ms recovery time. This eliminates the need for firmware polling or reset sequences.

How does the "J" suffix in IM241M6S1JALMA1 affect performance?

The "J" suffix denotes the slow-speed version optimized for low EMI operation, achieved through reduced dV/dt during switching transitions. Unlike the "B" (fast) variant, the "J" version prioritizes electromagnetic compatibility over peak efficiency - making it ideal for consumer appliances subject to CISPR 14-1 or EN 55014-1 emissions limits. Its trade-off is slightly higher conduction loss, which remains acceptable in fan and pump applications with moderate switching frequencies (≤20 kHz).

Can IM241M6S1JALMA1 be used with 3.3 V microcontrollers?

Yes - all logic inputs (HINx, LINx, RFE) are fully compatible with 3.3 V CMOS/LSTTL levels. Input thresholds are designed to guarantee reliable switching at VIH ≥ 2.0 V and VIL ≤ 0.8 V, with internal Schmitt triggers and noise filters ensuring immunity to sub-microsecond transients. No level-shifting circuitry is required, simplifying interface design and reducing component count in space-constrained applications.

What is the role of the NU, NV, and NW pins?

NU, NV, and NW are dedicated low-side emitter terminals for the U-, V-, and W-phase IGBTs, respectively. They provide direct access to the emitter nodes for precision shunt-resistor-based current measurement - enabling per-phase overcurrent protection, field-oriented control (FOC), or stall detection. To maintain accuracy, PCB traces from these pins to the shunt resistors and VSS must be short and symmetric, minimizing parasitic inductance that could distort sensed waveforms during fast switching events.