Infineon Technologies IM241M6S1BALMA1

Overview

IM241M6S1BALMA1 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 3-phase BLDC motor drives in fans and pumps.

For engineers reviewing the IM241M6S1BALMA1 datasheet, IM241M6S1BALMA1 pinout, IM241M6S1BALMA1 application, or IM241M6S1BALMA1 equivalent, key selection criteria include its fast-speed "B" variant optimized for low conduction loss, isolated 2000 VRMS rating, programmable overcurrent fault clear via RFE pin, and accessible low-side emitter pins (NU/NV/NW) for shunt-based current monitoring in compact appliance inverters.

Technical Context

This IPM implements a fully integrated 3-phase inverter stage with reverse-conducting IGBTs and monolithically embedded high-voltage IC (HVIC) gate drivers. Each half-bridge includes shoot-through prevention logic with ~300 ns minimum deadtime and input Schmitt-trigger filtering (t_FIL,IN ≥ 1 µs) for noise immunity.

The control interface uses three independent high-side (HIN/U/V/W) and low-side (LIN/U/V/W) inputs with LSTTL/CMOS compatibility, while RFE serves triple function-RC-programmable fault clear timer, open-drain fault output, and enable input-and VTH provides direct access to the internal NTC thermistor referenced to VSS.

Key Specifications

Pinout & Package

IM241M6S1BALMA1 is housed in a lead-free, RoHS-compliant SOP package measuring 29 mm × 12 mm, with isolated construction and backside thermal pad for heatsink attachment.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-phase inverter IPM applications.

Compared with FSB50450 and IRSM808-205MH, IM241M6S1BALMA1 uniquely combines open-emitter current sensing, on-die NTC access, and RC-programmable fault recovery in a surface-mount SOP package-enabling higher integration density and lower system-level design effort for compact, thermally managed appliance inverters.

Availability

IM241M6S1BALMA1 is available at Aetrix Electronics and suitable for ceiling fan inverters, condenser fan drives, small appliance pumps, and smart washing machine drum drives requiring stable component supply and long-term industrial lifecycle support.

Supply support for IM241M6S1BALMA1 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 MCUs, and industrial control ICs, with global manufacturing and qualification to JEDEC standards.

The CIPOS™ Micro product line targets space-constrained, high-reliability motor drives in white goods and HVAC, integrating power switches, gate drivers, protection, and sensing into single-module solutions.

FAQ

What is the maximum recommended switching frequency for IM241M6S1BALMA1?

The fast-speed "B" variant is characterized for operation up to 20 kHz in typical appliance motor drives. At 20 kHz, total switching loss per IGBT is specified at ≤1.2 W (T_c = 80°C), with thermal derating required above this frequency due to increased conduction loss and reduced heatsink efficiency.

How is the NTC thermistor connected and calibrated?

VTH connects directly to the internal NTC cathode; an external 10 kΩ pull-up resistor to VDD generates a voltage divider. Calibration uses the standard β-parameter equation with β = 3950 K and R_25°C = 10 kΩ, validated per Infineon's AN2019-07 application note for CIPOS™ Micro modules.

Can IM241M6S1BALMA1 drive motors larger than 100 W?

Yes-when mounted on a 50 cm² aluminum heatsink with forced airflow (≥1 m/s), it supports continuous 300 W motor loads at 25°C ambient. Derating curves in Figure 11.1 of the datasheet define safe operating area based on case temperature (T_c) and switching frequency.

Does the RFE pin require an external pull-up resistor?

No-RFE is an open-drain output with internal 3.3 V bias during normal operation. An external RC network (R_RCIN/C_RCIN) is mandatory for programmable fault clear timing, but no pull-up is needed; the microcontroller pulls RFE low only for active disable.