Mitsubishi PM20CNA060 | Compact 600V, 20A CIB Intelligent Power Module
The Mitsubishi PM20CNA060 is a highly integrated Intelligent Power Module (IPM) designed to simplify and streamline the development of low-power three-phase motor control systems. By combining a converter, inverter, and brake (CIB) circuit into a single, thermally efficient package, this module provides a robust foundation for compact and reliable power conversion designs. It is engineered for applications where board space, component count, and assembly time are critical design constraints.
Core Design Advantages
- All-in-One Integration: Features a three-phase diode converter bridge, a three-phase IGBT inverter, and a brake chopper circuit, significantly reducing the bill of materials (BOM) and simplifying PCB layout.
- Optimized for Low Power: With a 600V collector-emitter voltage (Vces) and 20A collector current (Ic), it is perfectly dimensioned for fractional horsepower motor drives and general-purpose inverters.
- Built-in Thermal Sensing: Includes an integrated NTC thermistor, enabling direct and accurate monitoring of the module's substrate temperature for effective thermal protection schemes.
- Simplified Gate Drive: As an IPM, it incorporates low-voltage ICs for gate driving and protection, requiring only simple logic-level control signals from a microcontroller.
Application Scenarios & Engineering Value
The PM20CNA060's integrated CIB topology makes it an exceptional choice for specific power applications, delivering tangible engineering benefits.
Compact Variable Frequency Drives (VFDs): In small VFDs used for pumps, fans, and conveyors, space is often at a premium. The PM20CNA060 replaces numerous discrete components (rectifier diodes, six inverter IGBTs, brake chopper IGBT, and associated gate drivers), enabling a much smaller and more cost-effective overall design. Its single-package form factor simplifies both thermal management and manufacturing.
General-Purpose Inverters: For applications like small machinery or appliance motor control, this module provides a plug-and-play power stage. The integrated protection features and simplified interface reduce design complexity, shortening the development cycle and allowing engineering teams to focus on application-level software and control algorithms.
Robotic Actuators and Servo Drives: While high-performance servos may require faster switching devices, the PM20CNA060 is a workhorse for less-demanding robotic servo drives. The integrated brake chopper is crucial for managing regenerative energy when a robotic arm decelerates, ensuring stable DC bus voltage and protecting system components.
Key Technical Specifications
The following table outlines the critical electrical and thermal characteristics of the PM20CNA060. For a complete dataset, designers should consult the official datasheet. Download the PM20CNA060 Datasheet for detailed performance curves and application notes.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 600V |
| Collector Current (Ic) | 20A |
| Configuration | 3-Phase Converter + 3-Phase Inverter + Brake Chopper |
| Collector-Emitter Saturation Voltage (Vce(sat)), Inverter | 2.7V (Typ) at Ic = 20A |
| Forward Voltage (Vf), FWD | 2.5V (Typ) at Ie = 20A |
| Isolation Voltage (Viso) | 2500 Vrms (1 minute) |
| Package | CNA |
Design & Selection Considerations
When selecting the Mitsubishi PM20CNA060, engineers should consider its strengths in the context of system goals. It is a premier choice for cost-sensitive, space-constrained applications under 5 kW. The integration simplifies the supply chain and reduces assembly errors. However, for applications demanding higher switching frequencies (above 15-20 kHz) or extremely low conduction losses, designers might evaluate newer generation discrete IGBTs or dedicated IPM (Intelligent Power Module) solutions. The trade-off is between the PM20CNA060's unparalleled integration and the potential performance gains of more specialized components.
Frequently Asked Questions (FAQ)
1. What is the primary benefit of using a CIB module like the PM20CNA060 over discrete components?The primary benefit is system simplification. A single CIB module reduces component count, shrinks the required PCB area, minimizes parasitic inductance between stages, and simplifies thermal design by consolidating heat sources onto a single, manageable heatsink. This translates to faster development time and lower manufacturing costs.
2. How does the integrated NTC thermistor improve system reliability?The NTC thermistor provides a real-time temperature reading directly from the module's substrate, which is much more accurate than a sensor placed on the heatsink. This allows the system's microcontroller to implement precise over-temperature protection, throttling back current or shutting down the system before thermal runaway can cause catastrophic IGBT failure. This proactive thermal management is key to long-term reliability in demanding industrial environments.
For inquiries about pricing, availability, or to discuss whether the PM20CNA060 is the right fit for your specific application, please contact our technical team for expert guidance and support on our full range of IGBT modules.
