Infineon Technologies IM241L6S1BALMA1

Overview

IM241L6S1BALMA1 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 integrated NTC thermistor. It delivers 600 V blocking voltage, supports 3.3 V/5.0 V logic inputs, and provides open-emitter low-side emitter pins (NU, NV, NW) for phase current sensing in 3-phase BLDC motor drives for fans and pumps.

For engineers reviewing the IM241L6S1BALMA1 datasheet, IM241L6S1BALMA1 pinout, IM241L6S1BALMA1 application, or IM241L6S1BALMA1 equivalent, key selection criteria include its SOP-29x12 surface-mount package, fast-speed "B" variant optimized for low conduction loss, programmable fault-clear timing via RFE pin, and isolated 2000 VRMS rating for industrial motor control safety compliance.

Technical Context

This IPM implements a fully integrated 3-phase inverter stage with reverse-conducting IGBTs enabling compact, high-efficiency motor drive designs without external freewheeling diodes. Its gate drivers feature built-in shoot-through prevention with ~300 ns minimum deadtime and Schmitt-trigger inputs compatible with 3.3 V/5 V microcontrollers.

The module integrates bootstrap functionality per high-side leg (VB(U)/VS(U), VB(V)/VS(V), VB(W)/VS(W)), isolated logic-to-power interfaces, and a dedicated ITRIP input for overcurrent shutdown. Temperature monitoring is enabled via direct access to the internal NTC through the VTH pin referenced to VSS.

Key Specifications

Pinout & Package

IM241L6S1BALMA1 is housed in a RoHS-compliant SOP package measuring 29 mm × 12 mm, with lead-free terminal plating and fully isolated construction suitable for surface-mount assembly and industrial thermal cycling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50450 and IRSM8364MPBF, IM241L6S1BALMA1 uniquely combines 600 V rating, 2000 VRMS isolation, integrated NTC, and SOP-29x12 surface-mount compatibility-making it the only option qualified for industrial-appliance motor drives requiring both safety certification and thermal intelligence.

Availability

IM241L6S1BALMA1 is available at Aetrix Electronics and suitable for brushless DC fan drives, small-appliance water pumps, and smart home air purifier motors requiring stable component supply, long-term lifecycle support, and JEDEC-qualified industrial reliability.

Supply support for IM241L6S1BALMA1 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 electronics, and industrial control ICs, with global manufacturing and qualification infrastructure aligned to ISO/TS 16949 and IECQ QC 080000.

The CIPOS™ Micro product line targets compact, high-efficiency motor drives for white goods and HVAC systems, integrating power semiconductors, gate drivers, protection logic, and thermal sensing into single-package solutions.

FAQ

What is the purpose of the RFE pin on IM241L6S1BALMA1?

The RFE pin serves three functions: it acts as an enable input (pull low to disable the IPM), a fault-reporting output (open-drain low during under-voltage or overcurrent), and a programmable fault-clear timer interface. An external RC network connected to this pin determines the auto-restart delay after fault clearance-e.g., 1.2 MΩ and 1 nF yield ~1.7 ms recovery time.

How does the IM241L6S1BALMA1 support phase current measurement?

It provides dedicated low-side emitter pins-NU (Pin 19), NV (Pin 20), and NW (Pin 22)-that expose each IGBT's emitter node independently. These pins allow placement of shunt resistors between emitter and VSS, enabling accurate, isolated phase current sensing without disrupting the main power path or introducing common-mode noise into control signals.

Does IM241L6S1BALMA1 require external bootstrap diodes and capacitors?

No. The module integrates bootstrap circuitry for all three high-side drivers (VB(U)/VS(U), VB(V)/VS(V), VB(W)/VS(W)). Each high-side floating supply is autonomously charged during low-side conduction, eliminating the need for external bootstrap diodes and capacitors-reducing component count, board area, and design validation effort.

What distinguishes the "B" version (e.g., IM241L6S1BALMA1) from the "J" version?

The "B" suffix denotes the fast-speed variant optimized for low conduction loss, targeting high-efficiency operation in continuous-duty applications like fans. The "J" variant prioritizes low EMI via slower switching edges and is suited for noise-sensitive environments. Both share identical pinout and protection features but differ in dynamic parameters-specifically turn-on/turn-off times and dV/dt slew rates-as documented in Sections 7.1–7.4 of the datasheet.