Infineon Technologies IM323L6GXKMA1

Overview

IM323L6GXKMA1 from Infineon Technologies is a fully isolated 600 V reverse-conducting IGBT-based CIPOS™ Tiny intelligent power module for three-phase motor control, integrating six IGBTs, SOI gate drivers, bootstrap diodes, under-voltage lockout, over-current shutdown, and an NTC thermistor. It supports open-emitter phase current sensing and operates with ±15 A continuous collector current at TC = 25°C in air-conditioning and refrigerator variable-speed drives.

For engineers reviewing the IM323L6GXKMA1 datasheet, IM323L6GXKMA1 pinout, IM323L6GXKMA1 application, or IM323L6GXKMA1 equivalent, key selection criteria include its 600 V blocking voltage, -11 V allowable negative VS potential at VBS = 15 V, integrated sleep function, cross-conduction prevention, and accessible low-side emitter pins (NU/NV/NW) for shunt-based current monitoring in compact inverter designs.

Technical Context

The IM323L6GXKMA1 implements a three-phase inverter topology using reverse-conducting IGBTs paired with rugged SOI gate drivers that tolerate transient noise and support -50 V transient VS-to-VSS voltage. Its bootstrap architecture enables high-side floating operation without external capacitors per leg, while built-in shoot-through prevention enforces minimum 360 ns dead time between complementary HIN/LIN inputs on each phase leg.

Control logic uses LSTTL/CMOS-compatible Schmitt-trigger inputs with internal 5 kΩ pull-downs and 1 µs minimum input pulse width requirement. Fault handling includes fast-track shutdown (low-side off ~200 ns before high-side), 100 µs fault-clear time, and dual UVLO detection on both VDD (11.5 V fall threshold) and VBS (10.7 V fall threshold).

Key Specifications

Pinout & Package

Fully isolated Dual In-Line molded module (DIP 33×19 mm), RoHS-compliant lead-free terminal plating, designed for direct PCB mounting with thermal pad on underside for heatsink coupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50450 and IRSM808-205MH, IM323L6GXKMA1 delivers higher integration (integrated NTC, sleep, ITRIP, and open-emitter sensing), superior thermal survivability (175°C short-term TJ), and stronger noise immunity-making it optimal for space-constrained, thermally demanding appliance inverters.

Availability

IM323L6GXKMA1 is available at Aetrix Electronics and suitable for air conditioning inverters, refrigerator compressor drives, and industrial fan controllers requiring stable component supply, long-lifecycle availability, and qualified industrial-grade reliability.

Supply support for IM323L6GXKMA1 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.

The CIPOS™ Tiny product line targets compact, high-reliability motor drives for white goods and industrial equipment, emphasizing integration of power stages, protection, and thermal monitoring in isolated packages.

FAQ

What is the maximum allowable DC-link voltage for IM323L6GXKMA1?

The absolute maximum DC-link voltage is 500 V for surge conditions and 450 V for continuous operation, as specified in the inverter section of the datasheet. Exceeding 450 V continuously risks exceeding the 600 V VCES rating of the integrated RC-IGBTs under switching stress and thermal derating conditions.

How does the ITRIP over-current protection function without external current sensors?

ITRIP accepts a voltage signal referenced to VSS, typically derived from a shunt resistor placed between NU/NV/NW and VSS. The internal comparator triggers at 0.525 V with 530 ns noise filtering, enabling direct connection to low-side current-sense paths without amplification or isolation.

Can IM323L6GXKMA1 be used with 3.3 V microcontrollers?

Yes-its HIN and LIN inputs are LSTTL/CMOS-compatible with thresholds supporting 3.3 V logic levels. Internal 5 kΩ pull-down resistors ensure defined states at power-up, and Schmitt-trigger inputs with noise filtering provide reliable operation even with marginal signal integrity.

What thermal interface material is recommended for the underside thermal pad?

Infineon recommends a thermally conductive, electrically insulating pad (e.g., Bergquist Sil-Pad 2000 series) or paste (e.g., Dow Corning TC-5022) with ≤0.2 °C·in²/W interfacial thermal resistance. Mounting pressure must ensure full coverage of the 33×19 mm baseplate without voids or excessive squeeze-out.