Content last revised on November 23, 2025
Fuji Electric 6MBP15RH-060: An Integrated Solution for Compact Motor Drives
Accelerating Development and Enhancing Reliability in Low-Power Inverters
The Fuji Electric 6MBP15RH-060 is an R-Series Intelligent Power Module (IPM) designed to streamline the development of low-power, high-performance motor control systems. This 6-pack module integrates key components to deliver a compact and reliable solution, featuring specifications of 600V and 15A. Its primary engineering benefits include a significant reduction in peripheral components and built-in protection mechanisms that enhance system robustness. This IPM directly addresses the engineering challenge of designing compact, reliable inverters by integrating gate drive circuitry, multiple protection functions, and high-performance IGBTs into a single package. For applications requiring slightly higher current handling, the related 6MBP20RH060 offers a 20A alternative within a similar framework.
Application Scenarios & Value
System-Level Benefits in AC Servo and Automated Machinery
The 6MBP15RH-060 is engineered for applications where space, reliability, and simplified assembly are critical design drivers. Its architecture provides significant value in systems such as AC servo drive amplifiers, small-scale robotic arms, and automated conveyor systems. In a typical scenario, designing a compact Variable Frequency Drive (VFD) for a packaging machine presents a challenge in fitting the power stage and its associated protection circuits into a constrained enclosure. The highly integrated nature of the 6MBP15RH-060 resolves this by incorporating a suite of protections—including over-current, short-circuit, under-voltage, and IGBT chip over-heating—directly into the module. This eliminates the need for numerous external components, simplifies the PCB layout, and directly contributes to a smaller overall system footprint and increased mean time between failures (MTBF).
Key Parameter Overview
Highlighting Critical Specifications for System Design
The performance of the 6MBP15RH-060 is defined by a set of electrical and thermal characteristics crucial for reliable system design. The module's parameters are optimized for low power loss and soft switching performance.
| Parameter | Symbol | Condition | Value |
|---|---|---|---|
| Collector-Emitter Voltage | VCES | - | 600V |
| Collector Current (DC) | IC | - | 15A |
| Collector-Emitter Saturation Voltage | VCE(sat) | IC = 15A | 2.7V (Max) |
| FWD Forward Voltage | VF | -IC = 15A | 3.5V (Max) |
| Over Current Protection Level | IOC | N-Side | 27A (Typ) |
| Under Voltage Protection Level | VUV | - | 12.5V (Typ) |
| Thermal Resistance (Junction-to-Case) | Rth(j-c) | IGBT Part | 3.1°C/W (Max) |
| Isolation Voltage | Viso | AC, 1 minute | 2500V |
Download the 6MBP15RH-060 datasheet for detailed specifications and performance curves.
Frequently Asked Questions (FAQ)
Engineering Insights into the 6MBP15RH-060 IPM
What specific fault conditions do the integrated protection circuits in the 6MBP15RH-060 cover?
The module includes comprehensive protection against common failure modes. It features an over-current (OC) protection for the lower arms, a short-circuit (SC) protection, an under-voltage (UV) lockout for the control power supply, and an IGBT chip over-temperature (OT) protection, providing a robust defense against potentially damaging operating conditions.
How does the integration of drive circuits benefit the design process?
By integrating the gate drive and amplification circuits, this Intelligent Power Module (IPM) simplifies the design of the interface between the microcontroller and the power stage. This reduces the number of external components, minimizes PCB complexity, and mitigates potential EMI issues associated with high-speed gate drive layouts, ultimately accelerating the time-to-market.
What is the function of the alarm signal (ALM) pin?
The alarm signal pin provides a direct fault feedback mechanism to the system's master controller. When a protection function is triggered (such as over-current or under-voltage), the ALM pin will output a signal, allowing the controller to initiate a safe shutdown procedure and log the fault type for diagnostics.
Is a negative gate voltage required for turning off the IGBTs in this module?
The datasheet specifies the control logic based on the input signal voltage (Vin) and the control supply (VCC). A dedicated negative supply is not typically required, as the integrated driver is designed to ensure a clean and secure turn-off, preventing spurious turn-on events. For more on gate drive design, refer to this guide on gate drive principles.
Strategic Advantage
In a competitive landscape for compact industrial and automation equipment, leveraging highly integrated components like the 6MBP15RH-060 offers a distinct strategic advantage. It shifts engineering focus from component-level circuit design to system-level optimization. By entrusting critical protection and drive functions to a pre-validated module, design teams can allocate more resources to developing value-added features, improving control algorithms, and ultimately delivering a more reliable and feature-rich product to the market faster.
