Fuji Electric 6MBP20RH060-50 | Compact PIM for High-Efficiency Motor Drives
The Fuji Electric 6MBP20RH060-50 is a highly integrated Power Integrated Module (PIM) engineered to streamline the design of low-power motor control and power conversion systems. By combining a three-phase converter, a brake chopper, and a three-phase inverter into a single, compact package, this module provides a robust foundation for building reliable and efficient drives. It is an ideal solution for engineers looking to accelerate development cycles, reduce PCB footprint, and enhance the overall performance of their applications.
- All-in-One Integration: Features a full converter-inverter-brake (CIB) topology, minimizing external component count and simplifying system assembly.
- Optimized for Efficiency: Utilizes advanced trench gate and field-stop IGBT technology to achieve low collector-emitter saturation voltage (VCE(sat)), reducing conduction losses and improving thermal performance.
- Enhanced Reliability: Includes an integrated thermistor for real-time temperature monitoring, enabling robust over-temperature protection schemes.
- Compact Footprint: The specialized P600 package is designed for high power density, making it perfect for space-constrained applications.
Technical Deep Dive: Architecture and Performance
The core value of the Fuji Electric 6MBP20RH060-50 lies in its intelligent integration and the advanced semiconductor technology within. This combination addresses critical engineering challenges in modern power electronics design.
Integrated CIB Topology
A Power Integrated Module (PIM) like the 6MBP20RH060-50 consolidates the key stages of a motor drive. The front-end three-phase diode bridge rectifies AC input, the inverter stage uses six IGBTs and free-wheeling diodes to generate a variable AC output for the motor, and the brake circuit manages regenerative energy during deceleration. This level of integration directly translates to lower manufacturing costs, reduced electromagnetic interference (EMI) due to shorter power loops, and a significant improvement in system reliability by minimizing interconnects. For further reading on the core components, explore our guide to an in-depth analysis of IGBT modules.
Low VCE(sat) for Superior Efficiency
This module incorporates Fuji Electric's advanced IGBT technology, which is optimized to lower the VCE(sat). A lower saturation voltage means less power is dissipated as heat during the conduction phase of the IGBT. This has two major benefits for the design engineer: first, it increases the overall energy efficiency of the system, a critical factor for applications like HVAC and pumps. Second, it reduces the thermal load, potentially allowing for a smaller heatsink and a more compact, cost-effective final product.
Key Parameter Overview
The following table provides a summary of the critical electrical and thermal characteristics for the 6MBP20RH060-50, essential for design and simulation. For complete details, engineers should consult the official product datasheet.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 600V |
| Continuous Collector Current (Ic) at Tc=80°C | 20A |
| Collector-Emitter Saturation Voltage (Vce(sat)) typ. at Ic=20A | 1.70V |
| Total Power Dissipation (Pc) per IGBT | 66W |
| Operating Junction Temperature (Tj) | -40 to +150°C |
For a comprehensive list of all specifications and performance curves, please download the official datasheet.
Application Scenarios and Value Proposition
The Fuji Electric 6MBP20RH060-50 is expertly tailored for applications where efficiency, space, and reliability are paramount.
- Small Variable Frequency Drives (VFDs): The module's all-in-one design is perfect for compact VFDs used to control AC motors up to 2.2 kW. Its high integration simplifies the power stage design, allowing for faster time-to-market.
- Robotic Servo Drives: In precision robotics, managing motor deceleration is critical. The integrated brake chopper in the 6MBP20RH060-50 effectively dissipates regenerative energy, ensuring stable and precise control of robotic arms and actuators. This application highlights the importance of IGBTs in robotic servo drives.
- HVAC and Pumping Systems: Energy efficiency is a key driver in HVAC controllers. The low Vce(sat) of this module minimizes power loss, directly contributing to lower operational costs and compliance with stringent energy standards.
For systems requiring slightly more current, the 6MBP30RH060 provides a seamless upgrade path with a 30A rating in a similar integrated package from Fuji Electric.
Engineer's FAQ
What is the primary advantage of the built-in thermistor?
The integrated NTC thermistor provides a direct, real-time measurement of the module's substrate temperature. This allows the motor drive's control unit to implement precise over-temperature protection, preventing thermal runaway and catastrophic failure. It is a critical feature for ensuring long-term system reliability under varying load conditions.
Is this module suitable for high switching frequencies?
The 6MBP20RH060-50 is optimized for a balance between switching losses and conduction losses, making it ideal for typical motor control frequencies ranging from a few kHz up to approximately 15 kHz. Operating at the lower end of this range will maximize efficiency, while operation at higher frequencies may require more robust thermal management to handle increased switching losses.
