Fuji 7MBR100SB060-50 | 600V/100A CIB Module for Integrated Motor Drives
The Fuji Electric 7MBR100SB060-50 is a highly integrated Power Integrated Module (PIM) designed to streamline the development of compact and efficient low-to-mid-power motor control systems. By combining a three-phase converter, a three-phase inverter, and a brake chopper into a single, thermally efficient package, this module addresses the core engineering challenges of space constraint, assembly complexity, and system reliability.
- Configuration: 7-in-1 (Three-phase rectifier bridge + three-phase inverter + brake chopper with FWD)
- Voltage & Current Rating: 600V / 100A (Inverter Section)
- Core Technology: Utilizes Fuji's optimized IGBT and FWD silicon for a balanced performance between low conduction losses and switching efficiency.
- Key Feature: Integrated NTC thermistor for real-time temperature monitoring, enabling precise thermal management.
Application Scenarios & Engineering Value
The high-density integration of the 7MBR100SB060-50 delivers tangible value across several key applications, directly translating its features into solutions for common design hurdles.
- Compact AC Motor Drives: For variable frequency drives (VFDs) under 7.5 kW, board space is at a premium. This PIM replaces up to 13 discrete components (diodes, IGBTs, FWDs), drastically reducing PCB footprint and simplifying layout. This allows for smaller, more cost-effective drive designs.
- Robotic and CNC Servo Drives: Precision and dynamic response are paramount. The module's compact internal layout minimizes stray inductance, contributing to cleaner switching and improved control loop stability. The integrated brake chopper is essential for managing regenerative energy during rapid deceleration, ensuring machine precision and safety.
- General-Purpose Inverters: In applications like commercial HVAC systems or pump controllers, reliability and ease of manufacturing are key. A single-module solution like the 7MBR100SB060-50 reduces assembly steps and potential points of failure compared to a discrete-based design, leading to higher manufacturing yields and improved field reliability.
Technical Deep Dive: The PIM Advantage
The strategic value of the Fuji 7MBR100SB060-50 lies in its PIM (Power Integrated Module) architecture, often referred to as a CIB (Converter-Inverter-Brake) module. This design philosophy goes beyond simply packaging components together; it creates a synergistic system.
The co-location of the converter, inverter, and brake circuits on a single Direct Bonded Copper (DBC) substrate ensures superior thermal coupling. Heat generated by any section is efficiently spread across the entire baseplate, simplifying the overall cooling system design. Furthermore, the inclusion of an on-chip NTC thermistor placed strategically near the IGBTs provides immediate and accurate temperature feedback. This is far more effective than an external sensor on the heatsink, allowing the drive's controller to implement precise over-temperature protection and potentially run the system closer to its thermal limits without risking failure. For a deeper understanding of thermal performance, explore our guide on why thermal resistance (Rth) matters.
Key Parameter Overview
The following table outlines the critical electrical characteristics that define the performance of the 7MBR100SB060-50. For a complete list of specifications and operating curves, please download the official datasheet.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 600 V |
| Collector Current, DC (Ic) - Inverter | 100 A (Tc=25°C) |
| Collector-Emitter Saturation Voltage (Vce(sat)) typ. | 1.70 V (at Ic=100A) |
| Forward Current, DC (If) - Rectifier | 100 A |
| Total Power Dissipation (Pc) - Inverter | 430 W |
| Isolation Voltage (Viso) | 2500 V (AC, 1 minute) |
Frequently Asked Questions (FAQ)
1. What are the gate drive requirements for this integrated module?
While the IGBTs within are standard, the compact pin-out requires a carefully designed gate driver layout to minimize noise coupling. A recommended gate voltage is +15V for turn-on and -5V to -10V for turn-off to ensure immunity against parasitic turn-on, especially given the close proximity of the inverter and brake circuits.
2. How does the integrated nature of this module affect paralleling?
The 7MBR100SB060-50 is designed as a standalone solution for its target power range and is not intended for paralleling. Its all-in-one nature provides a complete power stage; for higher power requirements, designers should select a larger discrete IGBT or a higher-current IGBT module to maintain optimal current sharing and thermal balance.
Strategic Advantage in Modern Power Electronics
The push for smaller, more powerful, and energy-efficient systems is a dominant trend in industrial automation. The Fuji Electric 7MBR100SB060-50 directly supports this trend. By offering a pre-engineered and optimized power stage, it allows engineering teams to focus their resources on higher-level tasks like control algorithm development and user interface design, ultimately accelerating time-to-market. Choosing an integrated solution like this PIM is a strategic decision to reduce design complexity, enhance system reliability, and gain a competitive edge in compact power conversion applications. For inquiries on specific applications or to discuss your design needs, please contact our technical team.
