Infineon Technologies IM523X6AXKMA1

Overview

IM523X6AXKMA1 from Infineon is a fully isolated 600 V, ±17 A three-phase CIPOS™ Mini intelligent power module (IPM) integrating RC-Drives IGBTs and SOI gate drivers for variable-speed motor control in home appliances. It features open-emitter low-side emitters (NU, NV, NW), integrated NTC thermistor, bootstrap functionality, and overcurrent shutdown with 0.525 V trip threshold referenced to VSS.

For engineers reviewing the IM523X6AXKMA1 datasheet, IM523X6AXKMA1 pinout, IM523X6AXKMA1 application, or IM523X6AXKMA1 equivalent, key selection criteria include its 450 V DC-link rating, -11 V allowable negative VS potential at VBS = 15 V, 360 ns built-in deadtime, fault output (VFO) with latch behavior, and accessible low-side emitter pins for phase current sensing in compact inverter designs.

Technical Context

This IPM implements a six-switch three-phase inverter topology with high-side and low-side IGBTs per phase, driven by a rugged SOI-based gate driver with Schmitt-trigger inputs compatible with 3.3 V/5 V controllers. Each high-side driver includes integrated bootstrap diodes and undervoltage lockout (VBSUV− = 10.7 V).

The module integrates cross-conduction prevention logic that enforces minimum 360 ns deadtime and prioritizes previously activated inputs on conflicting HIN/LIN signals per leg. Fault handling includes latched overcurrent shutdown via ITRIP (530 ns noise filter), UVLO on VDD (11.5 V turn-off), and VFO reporting with external pull-up requirement.

Key Specifications

Pinout & Package

IM523X6AXKMA1 uses a fully isolated dual in-line molded module (DIP 36x21) with lead-free RoHS-compliant terminal plating. The package provides electrical isolation, enhanced thermal conduction, and reduced EMI for industrial motor drive applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSA600A and FSB50550, IM523X6AXKMA1 delivers higher current capability (±17 A), integrated NTC-based thermal monitoring, and open-emitter current sensing-making it optimal for mid-power home appliance inverters demanding reliability, compactness, and functional integration.

Availability

IM523X6AXKMA1 is available at Aetrix Electronics and suitable for washing machine drives, refrigerator compressor controls, and small HVAC fan inverters requiring stable component supply, long-term lifecycle support, and qualified industrial-grade reliability.

Supply support for IM523X6AXKMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and qualification infrastructure.

The CIPOS™ Mini product line targets cost-sensitive, space-constrained motor drives in white goods and consumer appliances, emphasizing integration, thermal robustness, and ease of system-level compliance.

FAQ

What is the purpose of the NU, NV, and NW pins?

NU, NV, and NW are dedicated low-side emitter terminals for each phase leg, enabling direct connection to shunt resistors for accurate, isolated phase current measurement. They are electrically separated from VSS to avoid ground loop interference and must be routed with minimal trace inductance to preserve measurement fidelity during fast switching transitions.

How does the VFO pin function during overcurrent events?

VFO is an open-drain fault output that pulls low during overcurrent (ITRIP triggered) or VDD undervoltage conditions. It remains latched low until a new valid edge is applied to any HIN or LIN input after the fault-clear time (≥100 µs). An external pull-up resistor is mandatory to establish a defined high state during normal operation.

Can IM523X6AXKMA1 operate with a 3.3 V microcontroller?

Yes - all HIN and LIN inputs are Schmitt-triggered and compatible with 3.3 V logic levels. Internal 5 kΩ pull-down resistors ensure safe default states during power-up, and the input structure tolerates negative pulses down to −5.5 V, making it robust against controller-level noise and level-shifter failures in mixed-voltage systems.

What thermal derating applies above 80°C case temperature?

At TC = 80°C, the continuous collector current rating drops from ±17 A (at TC = 25°C) to ±11 A to maintain TJ ≤ 150°C. Derating follows linear interpolation between these points; operation above TC = 125°C is prohibited per absolute maximum ratings, and thermal design must ensure TC stays within −40°C to +125°C under all load conditions.