Sangise LFUBK909XA | High-Integration 600V CIB IGBT Module for Compact Motor Drives
The Sangise LFUBK909XA is an expertly engineered Power Integrated Module (PIM) designed to streamline the development of low-to-medium power motion control systems. By integrating a three-phase converter, brake chopper, and inverter stage into a single, compact housing, this module offers a robust foundation for building efficient and reliable motor drives, servo controllers, and general-purpose inverters. It represents a pragmatic solution for engineers seeking to accelerate design cycles while optimizing for both performance and board space.
Key Performance Highlights
The LFUBK909XA is engineered not just to meet specifications, but to solve real-world design challenges. Here’s what sets it apart:
- System-in-a-Package Design: Features a full Converter-Inverter-Brake (CIB) topology, dramatically reducing external component count, simplifying PCB layout, and minimizing assembly costs.
- Optimized Conduction Losses: Utilizes advanced trench-gate IGBT technology to achieve a low collector-emitter saturation voltage (VCE(sat)), which directly translates to lower power dissipation and improved thermal performance.
- Integrated Thermal Feedback: An embedded NTC thermistor provides real-time temperature monitoring, enabling robust over-temperature protection and enhancing long-term system reliability.
- Application-Tuned Performance: The module's switching characteristics are balanced for high efficiency in applications operating in the typical 2-15 kHz frequency range, offering a sweet spot between switching losses and audible noise.
Key Technical Parameters at a Glance
For engineers requiring quick-reference data, the table below summarizes the core specifications of the Sangise LFUBK909XA. For a comprehensive breakdown of all electrical and thermal characteristics, you can download the official datasheet.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 600V |
| Continuous Collector Current (Ic) @ Tc=80°C | 90A |
| Topology | Converter-Inverter-Brake (CIB) |
| Collector-Emitter Saturation Voltage (Vce(sat), typ. @ 90A) | 1.85V |
| Maximum Junction Temperature (Tj,max) | 150°C |
| Isolation Voltage (Viso) | 2500V (AC, 1 minute) |
Application Scenarios & Engineering Value
The true value of the LFUBK909XA lies in its application-specific performance. Its integrated design provides tangible benefits across several key sectors:
- Compact Variable Frequency Drives (VFDs): In VFDs for pumps, fans, and conveyors, the CIB topology eliminates the need for separate rectifier and brake chopper circuits. This not only shrinks the overall drive footprint but also reduces stray inductance, which is crucial for stable operation and simplified EMC filtering.
- Robotic Servo Drives: Precision is paramount in robotics. The LFUBK909XA provides a reliable and efficient power stage that minimizes thermal drift, ensuring consistent motor control. Its robust construction can withstand the demanding torque cycles inherent in robotic servo drive applications.
- Industrial Automation Equipment: For general automation machinery, the module's all-in-one nature and proven reliability reduce maintenance overhead and improve uptime. The integrated NTC allows for proactive thermal management, preventing unexpected shutdowns.
Frequently Asked Questions (FAQ) for Design Engineers
Our experience with power systems design has highlighted several common questions regarding modules like the Sangise LFUBK909XA.
What is the recommended gate drive voltage for this module?
For optimal performance, a +15V turn-on voltage is standard. To ensure robust noise immunity and prevent parasitic turn-on, especially in high dV/dt environments, we strongly recommend implementing a negative turn-off voltage, typically between -5V and -10V. This creates a solid buffer against the Miller effect. For a deeper understanding of this principle, exploring a guide on robust IGBT gate drive design is highly beneficial.
How does the CIB topology impact thermal management design?
The integrated nature of a Power Integrated Module means all heat-generating components (rectifier diodes, IGBTs, freewheeling diodes) are concentrated on a single baseplate. While this simplifies mounting, it requires careful heatsink selection. Your thermal simulation must account for the combined power losses from all three stages operating under worst-case load conditions. The LFUBK909XA's low VCE(sat) helps mitigate this challenge by reducing the primary source of conduction loss in the inverter stage.
For detailed application notes, design-in support, or to discuss how the LFUBK909XA can fit into your next project, please contact our technical team.
