Infineon Technologies IM241S6S1BALMA1

Overview

IM241S6S1BALMA1 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 IM241S6S1BALMA1 datasheet, IM241S6S1BALMA1 pinout, IM241S6S1BALMA1 application, or IM241S6S1BALMA1 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 high-side driver features floating bootstrap supply (VBx/VSx), ±50 V transient robustness on VS pins, and undervoltage lockout at 10.9 V (falling) / 11.1 V (rising).

The control interface includes Schmitt-trigger HIN/LIN inputs compatible with 3.3 V/5 V microcontrollers, internal 800 kΩ pull-downs, and input noise filtering with ≥1 µs minimum pulse width. Fault management is centralized via the multifunction RFE pin-serving as RC-programmable fault clear timer, open-drain fault output, and enable/disable control.

Key Specifications

Pinout & Package

IM241S6S1BALMA1 is housed in a RoHS-compliant SOP-29x12 surface-mount package with 23-pin layout and fully isolated construction. The module integrates high-voltage isolation (2000 V_RMS, 1 minute) between power and control sections.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IM241S6S1BALMA1, the DIP variant offers mechanical stability at the cost of PCB area, while the "J" version trades switching loss for superior EMI performance-enabling targeted optimization for either compactness/noise or thermal/efficiency constraints.

Availability

IM241S6S1BALMA1 is available at Aetrix Electronics and suitable for smart fan control, condenser fan drives, and small-appliance water pump applications requiring stable component supply, industrial-grade qualification, and long-term lifecycle support.

Supply support for IM241S6S1BALMA1 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 ICs, and industrial power semiconductors, with global manufacturing and quality certification to JEDEC standards.

The CIPOS™ Micro product line targets cost-optimized, high-reliability motor drives for white goods and HVAC systems, integrating power switches, gate drivers, protection, and sensing into compact, qualified modules.

FAQ

What is the purpose of the RFE pin on IM241S6S1BALMA1?

The RFE pin serves three functions: it acts as an open-drain fault output (pulled low during under-voltage or overcurrent), an enable/disable control input (low = disable), and a connection point for an external RC network that sets automatic fault-clear timing (T_FLT-CLR). Its dual-role design eliminates need for separate fault-reporting and reset-control lines.

Can IM241S6S1BALMA1 drive motors directly without external gate resistors?

Yes-the integrated gate drivers are designed for direct connection to the IGBT gates within the module; no external gate resistors are required for normal operation. However, external resistors may be added for fine-tuning switching speed or damping ringing in specific board layouts, though they are not part of the reference design.

How is temperature monitoring implemented on this IPM?

Temperature monitoring uses an integrated NTC thermistor connected to the VTH pin, which outputs an analog voltage referenced to VSS. An external pull-up resistor (to VDD or +5 V) forms a voltage divider; the resulting signal is read by an MCU ADC. The thermistor is placed near the IGBT die for accurate junction temperature tracking.

What does "B" in IM241S6S1BALMA1 signify?

The "B" suffix denotes the fast-speed variant optimized for low conduction losses, targeting high-efficiency operation in continuous-duty applications like fans and pumps. It contrasts with the "J" variant, which prioritizes low EMI via slower switching edges-making "B" ideal where thermal performance and efficiency are primary design goals.