Infineon Technologies IM523L6AXKMA1

Overview

IM523L6AXKMA1 from Infineon is a fully isolated 600 V, ±15 A three-phase CIPOS™ Mini intelligent power module (IPM) integrating RC-Drives IGBTs, SOI gate drivers, bootstrap diodes, overcurrent protection, undervoltage lockout, and an NTC thermistor. It delivers motor phase current sensing via open-emitter low-side outputs and supports sleep-mode recovery after fault events. Designed for variable-speed drives in home appliances.

For engineers reviewing the IM523L6AXKMA1 datasheet, IM523L6AXKMA1 pinout, IM523L6AXKMA1 application, or IM523L6AXKMA1 equivalent, key selection criteria include its 600 V blocking voltage, ±15 A continuous current rating at TC = 25°C, -50 V transient VS robustness, integrated fault output (VFO), and accessible low-side emitter pins (NU/NV/NW) for shunt-based current monitoring.

Technical Context

This IPM integrates six reverse-conducting IGBTs in a 3-phase bridge configuration with independent high-side (HINx) and low-side (LINx) control inputs, each featuring Schmitt-trigger logic compatible with 3.3 V/5 V microcontrollers. The SOI-based gate driver provides 360 ns minimum deadtime insertion and cross-conduction prevention logic to ensure safe switching.

It uses internal bootstrap circuitry for high-side floating supply (VBx/VSx), supports -11 V allowable negative VS potential at VBS = 15 V, and includes a dedicated ITRIP input with 0.525 V threshold referenced to VSS and 530 ns noise filtering. Fault signaling occurs via open-drain VFO with latch behavior and 100 µs minimum fault-clear time.

Key Specifications

Pinout & Package

Fully isolated dual in-line molded module (DIP 36×21 mm), RoHS-compliant lead-free plating, 24-pin layout with creepage/clearance optimized for industrial isolation requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSA600A12 and FSB50550, IM523L6AXKMA1 offers higher current capacity (±15 A), integrated thermal monitoring, and hardware-enforced fault recovery-making it optimal for mid-power (100–500 W), safety-critical appliance inverters requiring autonomous protection.

Availability

IM523L6AXKMA1 is available at Aetrix Electronics and suitable for washing machine drives, refrigerator compressors, small HVAC fans, and smart home appliance pumps requiring stable component supply, long-term lifecycle support, and industrial-grade reliability.

Supply support for IM523L6AXKMA1 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 leadership in silicon carbide and IGBT technologies.

The CIPOS™ Mini product line targets compact, high-reliability motor drives for white goods and HVAC-designed to replace discrete IGBT + driver designs with integrated, thermally optimized modules.

FAQ

What is the maximum allowable DC link voltage for IM523L6AXKMA1?

The absolute maximum DC link voltage is 450 V continuous, with a 500 V surge rating for ≤10 ms. Operation above 450 V violates absolute maximum ratings and risks catastrophic failure. Design margin should maintain ≤400 V nominal to accommodate transients and ensure long-term reliability under thermal stress.

Can IM523L6AXKMA1 be used without an external bootstrap capacitor?

No-although the module integrates bootstrap diodes, external ceramic capacitors (typically 0.22–0.47 µF, X7R, 25 V) must be placed between each VBx and VSx pair. These capacitors supply gate charge during high-side conduction; omission causes gate underdrive, increased switching losses, and potential IGBT failure.

How does the ITRIP input interface with a shunt resistor?

The ITRIP pin accepts a voltage signal referenced to VSS. A shunt resistor placed between NU (or NV/NW) and VSS generates a proportional voltage drop; for example, a 5 mΩ shunt yields 0.525 V at 105 A, triggering shutdown. Layout must minimize inductance and avoid routing near noise sources to prevent false trips from the 530 ns input filter.

Is the NTC thermistor calibrated, and what is its resistance range?

Yes-the integrated NTC is factory-calibrated with a nominal resistance of 10 kΩ at 25°C and a B25/85 value of 3435 K. Its voltage divider output connects to VFO, allowing MCU ADC measurement; resistance drops exponentially with temperature, enabling accurate case temperature estimation from 0°C to 125°C.