Mitsubishi PS219B2-CS IGBT Module

PS219B2-CS: Engineering a Compact and Reliable 5A/600V Inverter Stage

Content last revised on October 17, 2025.

Introduction to the PS219B2-CS DIPIPM

The Mitsubishi PS219B2-CS is a DIPIPM™ (Dual-In-Line Package Intelligent Power Module) engineered to deliver a highly integrated and protected 3-phase inverter output stage for low-power motor control. This module integrates critical drive and protection circuits with 600V/5A CSTBT™ (Carrier Stored Trench-Gate Bipolar Transistor) devices, providing a robust solution for compact inverter designs. Key specifications include: 600V | 5A | Integrated Bootstrap Diodes. The primary engineering benefits are a significant reduction in PCB complexity and enhanced system reliability through built-in protection. The PS219B2-CS directly addresses the challenge of designing efficient, space-constrained motor drives by consolidating the power stage, gate drive, and protection into a single compact component. For low-power AC 100-240Vrms inverter applications demanding high integration, the PS219B2-CS offers a functionally dense and reliable core.

Application Scenarios & Value

System-Level Benefits in Compact Motor Drive Designs

The PS219B2-CS is engineered for low-power motor control applications, particularly those found in home appliances and light industrial automation where space, reliability, and simplified assembly are critical design constraints. A primary engineering challenge in these systems is implementing a complete, protected three-phase inverter without consuming excessive PCB area or increasing the bill of materials (BOM). The high integration level of the PS219B2-CS provides a direct solution. By incorporating the gate drive circuit, high-voltage level shifting, bootstrap diodes with current-limiting resistors, and comprehensive protection functions, it eliminates the need for numerous external components. This integration is particularly valuable in variable speed drives for fans, pumps, and compressors in systems like air conditioners and washing machines. For designs requiring slightly different voltage or current ratings, engineers might also evaluate the related PS21961-4, which offers alternative specifications within a similar package family.

Key Parameter Overview

Highlighted Specifications for Inverter Performance

The technical specifications of the PS219B2-CS are tailored for efficient and safe operation in its target applications. The parameters below highlight its capabilities as a comprehensive inverter solution. The use of Mitsubishi Electric's CSTBT™ technology ensures a balance between low conduction losses and switching performance.

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Download the PS219B2-CS datasheet for detailed specifications and performance curves.

Technical Deep Dive

Integrated Protections and Their Impact on System Reliability

A key value proposition of the PS219B2-CS Intelligent Power Module is its array of built-in protection features, which are fundamental to achieving robust and safe motor operation. These are not merely add-ons but are deeply integrated into the module's control logic. The module includes Supply circuit under-voltage (UV) protection for both the P-side and N-side, short-circuit (SC) protection for the N-side, and over-temperature (OT) protection via an internal temperature sensor. What is the impact of integrated over-temperature protection? It provides a direct thermal feedback loop, allowing the system to shut down gracefully before the IGBT junctions exceed their safe operating limits, preventing catastrophic failure. This is analogous to a car's engine management system detecting overheating and entering a limp mode to prevent permanent damage. This integration simplifies the implementation of safety protocols within a motor control system, such as those required by IEC 60730, by providing reliable, pre-characterized fault detection and reporting via a single fault output (Fo) pin.

Frequently Asked Questions (FAQ)

How does the integrated bootstrap circuit in the PS219B2-CS simplify PCB design?

The integrated bootstrap diodes and their series current-limiting resistors provide the floating power supply for the high-side gate drivers. This eliminates the need for external diodes and resistors for each of the three high-side channels, reducing component count, minimizing PCB layout complexity, and saving valuable board space in compact motor drive applications.

What is the function of the open-emitter outputs for the N-side IGBTs?

The open-emitter configuration provides a direct, low-inductance path from each of the three lower IGBT emitters to external shunt resistors. This is essential for implementing accurate phase current sensing, which is a critical feedback mechanism for advanced motor control algorithms like Field-Oriented Control (FOC). It allows for precise measurement of the current flowing through each motor phase, enabling higher efficiency and smoother torque control.

Strategic Advantage in Application-Specific Designs

Accelerating Time-to-Market for Appliance and Light Industrial Controls

The PS219B2-CS is more than a collection of discrete components; it represents a strategic design choice for engineering teams aiming to accelerate product development cycles. In the competitive markets of home appliances and automated machinery, reducing the design, testing, and validation phases is paramount. By providing a pre-certified and fully characterized power stage, this IPM (Intelligent Power Module) significantly de-risks the most challenging part of the inverter design. Engineers can focus on system-level software and application-specific features rather than spending critical resources on gate drive optimization, protection circuit tuning, and thermal management of the power devices. This streamlined approach shortens the path from concept to production, offering a distinct competitive advantage for manufacturers operating under tight deadlines and stringent reliability standards.