Infineon IPB90R340C3: A High-Performance 900V CoolMOS™ Power Transistor

In the realm of high-voltage power conversion, efficiency, thermal performance, and reliability are paramount. The Infineon IPB90R340C3 stands out as a premier solution, engineered to meet the rigorous demands of modern switch-mode power supplies (SMPS), industrial drives, and renewable energy systems. As part of Infineon's renowned CoolMOS™ C3 family, this 900V power MOSFET sets a new benchmark for performance in its class.

Unmatched Efficiency with Superjunction Technology

At the heart of the IPB90R340C3 lies Infineon's advanced superjunction (SJ) technology. This innovation enables the transistor to achieve an exceptionally low specific on-state resistance (R DS(on)) of just 340mΩ at room temperature. The result is significantly reduced conduction losses, which is critical for improving the overall efficiency of power systems. Whether operating in continuous conduction mode (CCM) or in hard-switching topologies like flyback or PFC stages, this device ensures minimal energy waste, leading to cooler operation and higher power density designs.

Enhanced Switching Performance

Beyond low conduction losses, the IPB90R340C3 is optimized for superior switching characteristics. The device features low gate charge (Q G) and low output capacitance (C OSS), which collectively minimize switching losses at high frequencies. This allows designers to push switching frequencies higher, enabling the use of smaller passive components such as transformers and filters. The outcome is a more compact, lighter, and cost-effective power supply without compromising performance or reliability.

Robustness and Reliability for Demanding Environments

Designed with robustness in mind, this 900V MOSFET offers a high avalanche ruggedness and exceptional tolerance to dynamic dv/dt events. This makes it ideally suited for applications in harsh environments where voltage spikes and transients are common, such as in motor drives and industrial automation. Furthermore, the CoolMOS™ C3 technology ensures high body diode robustness, enhancing reliability in circuits where reverse recovery behavior is critical.

Thermal Management and Package

The IPB90R340C3 is offered in the industry-standard TO-220 package, which provides excellent thermal conductivity and ease of mounting. Its low thermal resistance allows for efficient heat dissipation, ensuring the device remains within safe operating temperatures even under high-stress conditions. This contributes to longer system lifespan and reduced cooling requirements.

Application Versatility

The combination of high voltage capability, low R DS(on), and fast switching makes this transistor exceptionally versatile. Key application areas include:

- High-power SMPS for servers and telecom equipment

- Power Factor Correction (PFC) stages

- Solar inverters and energy storage systems

- Industrial motor controls and drives

- Lighting ballasts and UPS systems

ICGOOODFIND Summary

The Infineon IPB90R340C3 CoolMOS™ Power Transistor is a high-performance 900V MOSFET that delivers outstanding efficiency, switching speed, and ruggedness. Leveraging superjunction technology, it enables power designers to achieve new levels of power density and reliability in a wide range of high-voltage applications.

Keywords:

1. CoolMOS™ C3

2. Superjunction Technology

3. Low R DS(on)

4. High Voltage MOSFET

5. Switching Performance