Infineon Technologies IM818SCCXKMA1

Overview

IM818SCCXKMA1 from Infineon Technologies is a fully isolated three-phase intelligent power module (IPM) integrating 1200 V TRENCHSTOP™ IGBT4s, emitter-controlled diodes, and a rugged 1200 V SOI gate driver. It delivers ±8 A continuous output per phase at TC = 25°C, supports 900 V DC bus operation, and includes integrated NTC thermistor, over-current shutdown, and anti-cross-conduction logic. Used in HVAC fan drives, low-power servo inverters, and active filter systems.

For engineers reviewing the IM818SCCXKMA1 datasheet, IM818SCCXKMA1 pinout, IM818SCCXKMA1 application, or IM818SCCXKMA1 equivalent, key selection criteria include its 1200 V blocking capability, open-emitter low-side emitter pins (NU/NV/NW) for phase current sensing, programmable fault-clear timing via RFE pin, and -11 V allowable negative VS potential under VBS = 15 V.

Technical Context

The IM818SCCXKMA1 implements a six-channel high- and low-side SOI gate driver with built-in shoot-through prevention and 360 ns minimum deadtime insertion. Its bootstrap-based high-side supply supports floating operation up to 1200 V offset between VB and VS, with robust -50 V transient tolerance on VS pins relative to VSS.

Control logic features Schmitt-trigger inputs compatible with 3.3 V/5 V microcontrollers, internal 5 kΩ pull-down resistors, and input noise filtering (t_FIL,IN ≈ 1 µs). Fault management integrates UVLO on VDD (11.2 V–12.2 V window) and VBS (10.2 V–11.2 V), ITRIP comparator (0.5 V threshold), and latch-type shutdown with 1.1 ms typical fault-clear time.

Key Specifications

Pinout & Package

IM818SCCXKMA1 uses a DIP-24 (36×23 mm) fully isolated dual-in-line molded package with creepage/clearance optimized for industrial insulation requirements and 2500 V RMS isolation rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSA800S60A and FSB50550, IM818SCCXKMA1 offers higher voltage robustness (1200 V), integrated thermal monitoring, and programmable fault recovery-making it optimal for new 690 V industrial drives where reliability and design simplification are prioritized over minimal BOM cost.

Availability

IM818SCCXKMA1 is available at Aetrix Electronics and suitable for HVAC fan drives, industrial servo inverters, and pump motor drives requiring stable component supply, long-lifecycle assurance, and compliance with industrial-grade qualification standards (JEDEC JESD22-A108).

Supply support for IM818SCCXKMA1 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, and industrial control ICs, with leadership in IGBT, SiC, and intelligent power module technologies.

The CIPOS™ Maxi product line targets compact, high-reliability three-phase inverter solutions for variable-speed motor drives-designed to replace discrete IGBT+driver designs while improving thermal performance, EMI behavior, and system-level safety certification.

FAQ

What is the maximum allowable DC bus voltage for IM818SCCXKMA1?

The absolute maximum DC link voltage between P and N is 900 V under normal operating conditions, with a surge rating of 1000 V for ≤10 ms. Exceeding 900 V continuously risks premature degradation of the integrated 1200 V TRENCHSTOP™ IGBTs and violates JEDEC qualification limits. Designers must ensure rectified 690 V AC mains stays within this envelope including worst-case line tolerance and transient overshoot.

How is phase current measured using the NU, NV, and NW pins?

NU, NV, and NW are dedicated low-side emitter terminals that expose each IGBT emitter separately. A precision shunt resistor is placed between each pin and VSS, allowing Kelvin-sense measurement of phase current with minimal common-mode noise. The internal 5 kΩ pull-down on LIN inputs ensures safe default-off state during startup, and layout best practice mandates shortest possible trace length from NU/NV/NW to shunt to avoid inductive voltage error.

Can IM818SCCXKMA1 operate with a 3.3 V microcontroller?

Yes-its HIN and LIN inputs feature Schmitt-trigger logic with thresholds compatible with 3.3 V LVTTL and CMOS outputs. The internal 5 kΩ pull-down resistors ensure defined logic states during power-up, and the 1 µs input noise filter rejects spikes below that duration. No external level shifters are needed, though designers should verify controller output drive strength meets the 1 µA max input leakage requirement across temperature.

What thermal derating applies above 25°C case temperature?

At TC = 80°C, the continuous collector current rating drops to ±5 A per phase (from ±8 A at TC = 25°C), reflecting junction-to-case thermal resistance of 2.52 K/W for the high-side V-phase IGBT. Derating is linear between these points; operation above TC = 125°C is prohibited. Heatsink design must maintain TC ≤ 80°C under full load to sustain 5 A output, verified via thermocouple on the module's case center point per Figure 6 in the datasheet.