Mitsubishi PM100RSD120 IGBT Module

Mitsubishi PM100RSD120: An Intelligent Power Module for High-Reliability Motor Drives

Content last revised on October 13, 2025.

The Mitsubishi PM100RSD120 is a highly integrated Intelligent Power Module (IPM) designed to enhance system reliability and simplify the design of power conversion systems. It consolidates a complete 7-in-1 power stage with extensive protection features, targeting demanding industrial applications. With core specifications of 1200V | 100A | 7-in-1 IPM Configuration, this module offers significant benefits, including enhanced operational robustness and a streamlined design cycle. By integrating gate drive and protection logic, it directly addresses the engineering challenge of creating compact and fault-tolerant motor controls. For compact motor drives up to 45kW requiring high reliability, the PM100RSD120's integrated protection offers a robust and streamlined solution.

Application Scenarios & Value

Achieving System-Level Benefits in Compact Industrial Drives

The primary value of the PM100RSD120 lies in its ability to deliver high reliability in a compact footprint, making it an excellent fit for modern Variable Frequency Drives (VFDs), servo drives, and general-purpose inverters. Consider the design of a VFD for an automated conveyor system. A key challenge is ensuring maximum uptime by protecting the drive from destructive events like short circuits or over-temperature conditions. Using discrete components would require separate gate drivers, protection circuits, and complex logic, increasing board space and potential points of failure. The PM100RSD120 solves this by integrating detection and protection circuits for overcurrent, short-circuit, over-temperature, and under-voltage events directly within the module. This integration not only saves space but also provides tightly coupled, high-speed protection that is difficult to achieve with external circuitry. What is the primary benefit of the PM100RSD120's integration? It enhances system reliability by including built-in protection circuits. For systems requiring higher power output, the related PM150CSD120 provides a 150A capability within a similar integrated framework.

Key Parameter Overview

Decoding the Specs for Enhanced System Reliability

The performance of the PM100RSD120 is defined by its electrical and thermal characteristics, which are optimized for industrial motor control. The module's low VCE(sat) is a critical parameter, as it directly influences conduction losses. A lower VCE(sat) means less heat is generated during operation, which simplifies thermal management and can lead to a smaller required heatsink. Think of it like a water faucet; a low VCE(sat) is like a faucet that opens wider, allowing current to flow with less resistance and energy loss. This efficiency is crucial for meeting modern energy standards and ensuring long-term component life.

Download the PM100RSD120 datasheet for detailed specifications and performance curves.

Technical Deep Dive

An Inside Look at the Integrated Protection and Feedback System

A standout feature of the Intelligent Power Module PM100RSD120 is its comprehensive, built-in protection and diagnostic architecture. The module contains monolithic gate drive and logic circuits that actively monitor its operating state. The Short-Circuit (SC) protection, for instance, uses an integrated current-sensing emitter on the IGBT chip to detect dangerously high currents and initiate a safe shutdown within microseconds, preventing catastrophic failure. Furthermore, the module includes an analog temperature output pin (VOT). This feature provides a voltage signal proportional to the module's internal temperature. The VOT output acts like a continuous fever thermometer for the module, allowing the system's microcontroller to "feel" the temperature rising. This enables proactive thermal management, where the controller can reduce switching frequency or output current to prevent an over-temperature trip, maximizing operational availability—a critical advantage over systems that only have a simple shutdown alert.

Frequently Asked Questions (FAQ)

How does the integrated short-circuit protection in the PM100RSD120 improve motor drive robustness?The integrated short-circuit protection provides a very fast-acting, low-inductance path for detection and shutdown. By placing the protection logic within the same module as the power switches, it reacts much faster than external protection circuits, safely turning off the IGBTs before a destructive failure can occur during events like a motor phase-to-phase short.

What is the function of the VOT pin and how can it be used for advanced thermal management?The VOT pin provides a continuous analog voltage signal that is proportional to the temperature of the module's substrate. A system's microcontroller can monitor this voltage to implement intelligent thermal management. Instead of waiting for a simple over-temperature alarm, the controller can dynamically adjust system parameters (e.g., derate motor current) as the temperature rises, allowing for graceful performance reduction instead of an abrupt shutdown, thereby increasing system uptime.

Can the PM100RSD120 be directly driven from a 3.3V microcontroller?Yes, the module is designed with a logic-level interface compatible with 3.3V and 5V class microcontrollers. This eliminates the need for intermediate buffer or level-shifter circuits, simplifying the interface between the control and power stages and reducing component count on the control board. How does the PM100RSD120 simplify design? It integrates a 7-in-1 power stage, reducing external component count.

For further technical inquiries or to discuss how the PM100RSD120 can be integrated into your specific design, please contact our engineering support team for detailed application guidance.