Infineon Technologies IM241M6S1BAUMA1

Overview

IM241M6S1BAUMA1 from Infineon Technologies 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 enables open-emitter phase current sensing for three-phase BLDC motor drives in fans and pumps.

For engineers reviewing the IM241M6S1BAUMA1 datasheet, IM241M6S1BAUMA1 pinout, IM241M6S1BAUMA1 application, or IM241M6S1BAUMA1 equivalent, key selection criteria include its fast-speed "B" variant optimized for low conduction loss, integrated shoot-through protection with 300 ns deadtime, accessible low-side emitter pins (NU/NV/NW), and programmable fault-clear timing via RFE pin RC network.

Technical Context

This IPM implements a fully isolated, three-phase inverter stage using reverse-conducting IGBTs with integrated freewheeling diodes, eliminating external anti-parallel diodes. Each half-bridge includes high-side floating HVIC drivers with bootstrap supply (VBx/VSx), 3.3 V/5 V logic-compatible Schmitt-trigger inputs (HINx/LINx), and built-in noise filtering (t_FIL,IN ≥ 1 µs).

Protection architecture combines overcurrent shutdown via ITRIP pin (500 ns input filter, V_IT,TH+ = 2.2 V), under-voltage lockout on VDDx (10.9 V–11.1 V hysteresis) and VBx (same thresholds), and temperature monitoring via VTH-connected NTC. The RFE pin integrates enable, fault reporting (open-drain), and RC-programmable auto-restart (T_FLT-CLR ≈ 1.7 ms with 1.2 MΩ/1 nF).

Key Specifications

Pinout & Package

IM241M6S1BAUMA1 uses a surface-mount SOP-29x12 package with 23-pin layout and lead-free, RoHS-compliant terminal plating. Pin numbering follows bottom-view orientation per Infineon datasheet Figure 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50450 and IRSM808-207MH, IM241M6S1BAUMA1 provides higher integration density, hardware-level shoot-through prevention, and RC-timed fault recovery-reducing design validation effort and improving system reliability in space-constrained appliance motor drives.

Availability

IM241M6S1BAUMA1 is available at Aetrix Electronics and suitable for fan drives, small-appliance pumps, and smart-home ventilation systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for IM241M6S1BAUMA1 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 global manufacturing and quality certification to ISO 9001 and IATF 16949.

The CIPOS™ Micro product line targets high-efficiency, space-constrained motor drives in white goods and HVAC, integrating power switches, gate drivers, protection, and sensing into standardized, qualified IPM packages.

FAQ

What is the maximum recommended switching frequency for IM241M6S1BAUMA1?

The fast-speed "B" version is characterized for operation up to 20 kHz, balancing conduction loss and switching loss. At 20 kHz, typical total losses are 4.2 W per phase at 10 A RMS and 400 V DC bus. Operation beyond 20 kHz increases thermal stress and reduces efficiency due to elevated switching losses in the RCD2 IGBTs.

How is the NTC thermistor connected and calibrated?

The NTC is internally connected between VTH and VSS. An external 10 kΩ pull-up resistor to VDD (or 5 V) forms a voltage divider; VTH voltage drops as temperature rises. Calibration uses the Steinhart-Hart equation with coefficients provided in Infineon's AN2019-09, yielding ±2.5 °C accuracy from –40 °C to 150 °C.

Can IM241M6S1BAUMA1 be used with 3.3 V-only microcontrollers without level shifters?

Yes. All HINx and LINx inputs are 3.3 V–5 V logic-compatible with Schmitt-trigger thresholds (V_IL = 0.8 V, V_IH = 2.0 V). No level shifting is needed when driven directly from 3.3 V GPIOs, and internal 800 kΩ pull-downs ensure safe default state during MCU reset or power-up.

What is the purpose of the RFE pin's RC network, and what happens if CRCIN exceeds 5 nF?

The RC network sets fault-clear timeout (T_FLT-CLR). If CRCIN > 5 nF, the internal open-drain MOSFET cannot fully discharge it within 350 ns after overcurrent detection, causing delayed or failed fault clearing. This may result in persistent disable state or erratic restart behavior-Infineon specifies CRCIN ≤ 5 nF for guaranteed operation.