Fuji Electric 7MBI75N-060-10 | Robust 600V PIM for High-Reliability Power Conversion
The Fuji Electric 7MBI75N-060-10 is an industry-proven Power Integrated Module (PIM) engineered for designers seeking reliability, thermal efficiency, and high integration levels in compact power conversion systems. This module consolidates a three-phase converter, a three-phase inverter, and a brake chopper with a free-wheeling diode into a single, optimized package, simplifying system design and enhancing overall performance.
- Product: 7-in-1 IGBT Power Integrated Module (PIM)
- Ratings: 600V / 75A
- Core Technology: Utilizes Fuji Electric's established NPT (Non-Punch-Through) IGBT technology for a balanced performance of low conduction losses and robust switching.
- Key Applications: Ideal for AC and servo motor drives, general-purpose inverters, and uninterruptible power supplies (UPS).
Key Technical Specifications at a Glance
This table provides a summary of the critical electrical characteristics that define the performance of the 7MBI75N-060-10. For comprehensive data and operating curves, you can download the official datasheet.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (V_CES) | 600V |
| Continuous Collector Current (I_C) @ T_C = 80°C | 75A (Inverter Part) |
| Collector-Emitter Saturation Voltage (V_CE(sat)) typ. | 1.7V (Inverter Part, @ 75A) |
| Topology | Three-Phase Diode Bridge + Three-Phase Inverter + Brake Chopper |
| Short-Circuit Withstand Time (t_sc) | ≥ 10µs |
| Isolation Voltage (V_isol) | 2500V (AC, 1 minute) |
Application Deep Dive: Where the 7MBI75N-060-10 Excels
The highly integrated nature of the Fuji Electric 7MBI75N-060-10 makes it a go-to solution for applications where space, assembly cost, and reliability are paramount engineering drivers.
- AC Motor Drives: In variable frequency drives (VFDs) for industrial motors, this PIM drastically reduces the PCB footprint and component count. The integrated brake chopper is essential for managing regenerative energy during deceleration, preventing DC bus overvoltage and improving system safety.
- Servo Drives: The module’s controlled switching characteristics and low conduction losses provide the efficiency and precision required for high-performance robotic and CNC servo drives. Its thermal stability ensures consistent performance under dynamic load conditions.
- Uninterruptible Power Supplies (UPS): Reliability is non-negotiable in UPS systems. The reduced number of solder joints and interconnections inherent in a Power Integrated Module (PIM) topology minimizes potential failure points, making this module a robust core for commercial and industrial UPS designs.
Technical Analysis: The PIM Advantage
The engineering value of the 7MBI75N-060-10 lies in its intelligent integration. By co-packaging the rectifier, inverter, and brake unit, Fuji Electric provides a solution that directly addresses common design challenges. This approach inherently lowers the stray inductance within the power stage, which can reduce voltage overshoots during switching and simplify the requirements for snubber circuits. This leads to cleaner switching waveforms, lower EMI, and a more reliable system overall.
Furthermore, the module is built upon a foundation of proven IGBT and FWD (Free-Wheeling Diode) technology optimized for low- to mid-frequency applications (typically up to 20 kHz). The focus on a low V_CE(sat) minimizes conduction losses, which are the dominant loss factor in motor drive applications. This translates directly to lower operating temperatures and reduced heatsink requirements, enabling more compact and cost-effective end products. For engineers looking to optimize their designs, it's crucial to look beyond just V_CE(sat) and consider the total loss profile, where this module offers a compelling balance.
Engineer's FAQ
What are the primary considerations for the gate drive design?
A stable and robust gate drive is critical. We recommend a gate voltage of +15V for turn-on and a negative voltage between -5V and -10V for turn-off. A negative turn-off voltage provides a strong buffer against dV/dt-induced parasitic turn-on, especially important in a bridge configuration. Ensure your gate drive power supply is well-decoupled and placed close to the module to minimize inductance in the gate loop. For a deeper understanding, review these practical tips for robust gate drive design.
Is this module suitable for paralleling to achieve higher current?
While technically possible, PIMs like the Fuji Electric 7MBI75N-060-10 are generally not recommended for paralleling. The integrated nature makes it difficult to ensure symmetrical current sharing across the internal components of multiple modules. For applications requiring higher current, it is best practice to select a single IGBT module with a higher current rating to ensure reliability and predictable thermal performance. For custom solutions or selection advice, please contact our technical team.
