CoolMOS™ Highly efficient and reliable superjunction MOS FETS enable POWER SUPPLIES savings and compact size

The CoolMOS™ 7 series is the 7th generation Superjunction (SJ) MOS FETS group developed by Infineon, and is compatible with high voltages from 600V to 950V. As the successor to the conventional C6 and P6 series, it is optimized to achieve high efficiency, high density, and low loss designs. Even now, even after the introduction of the CoolMOS™ 8 series, the wide range of voltages and packages available means that it is widely adopted as a main product group in automotive, industrial, and consumer applications.

Ultra-low on-resistance (RDS(on)) × area: Contributes to high power density designs
Low gate charge (Qg) and low output capacitance (Coss): Reduces SWITCHES losses
High-speed SWITCHES performance: Excellent EMI characteristics and high design freedom
Integrated protection ZENER DIODES: Enhanced ESD resistance (HBM up to 2kV)
Package options: Various options including TO-220, TO-247, DPAK, TOLL, etc.

■ CoolMOS™ P7 (600V / 700V / 800V / 950V)
The P7 series achieves highly efficient power conversion, reducing SWITCHES losses with low gate charge and low on-resistance, making it suitable for a wide range of applications including auxiliary POWER SUPPLIES, lighting, CHARGERS, and industrial motor drives.

■ CoolMOS™ CFD7 (600V / 650V)
The CFD7, with its fast body DIODES, is ideal for hard-SWITCHES environments, achieving high efficiency and reliability in PFC stages and LLC topologies, making it suitable for server POWER SUPPLIES and solar INVERTERS.

■ CoolMOS™ PFD7 (600V)
While inheriting the features of the CFD7, it is optimized for low-power motor drives and CHARGERS. It combines high-speed recovery and high voltage resistance, and is designed to have excellent noise resistance.

■ CoolMOS™ S7 (600V)
The S7's ultra-low on-resistance makes it ideal for high-current applications. Combined with a package that allows for high-density mounting, it maximizes power density and thermal performance.

■ CoolMOS™ C7 (600V / 650V)
The C7 series boasts industry-leading SWITCHES performance and is ideal for ZVS topologies and high-frequency applications, achieving both high efficiency and reduced EMI.

■ CoolMOS™ G7 (650V)
The G7 is the successor to the C7, pursuing even greater efficiency and reliability. It supports high-frequency SWITCHES and contributes to higher performance in industrial POWER SUPPLIES and communication equipment.

■ CoolMOS™ P7 (600V / 700V / 800V / 950V)
The P7 series achieves highly efficient power conversion, reducing SWITCHES losses with low gate charge and low on-resistance, making it suitable for a wide range of applications including auxiliary POWER SUPPLIES, lighting, CHARGERS, and industrial motor drives.
■ CoolMOS™ CFD7 (600V / 650V)
The CFD7, with its fast body DIODES, is ideal for hard-SWITCHES environments, achieving high efficiency and reliability in PFC stages and LLC topologies, making it suitable for server POWER SUPPLIES and solar INVERTERS.
■ CoolMOS™ PFD7 (600V)
While inheriting the features of the CFD7, it is optimized for low-power motor drives and CHARGERS. It combines high-speed recovery and high voltage resistance, and is designed to have excellent noise resistance.
■ CoolMOS™ S7 (600V)
The S7's ultra-low on-resistance makes it ideal for high-current applications. Combined with a package that allows for high-density mounting, it maximizes power density and thermal performance.
■ CoolMOS™ C7 (600V / 650V)
The C7 series boasts industry-leading SWITCHES performance and is ideal for ZVS topologies and high-frequency applications, achieving both high efficiency and reduced EMI.
■ CoolMOS™ G7 (650V)
The G7 is the successor to the C7, pursuing even greater efficiency and reliability. It supports high-frequency SWITCHES and contributes to higher performance in industrial POWER SUPPLIES and communication equipment.

CoolMOS™ is Infineon's leading brand of high-voltage superjunction MOS FETS. Its outstanding FoM (FoM), including low on-resistance and low Qg/Qoss, significantly reduces losses in key topologies such as PFC, LLC, and flyback, contributing to higher efficiency and the miniaturization and high-density of POWER SUPPLIES. In particular, CoolMOS™ 8 features an integrated fast-body DIODES, covering a wide range of industrial and consumer applications with a single family. While inheriting the strengths of previous generations (P7, PFD7, C7, CFD7, G7, and S7), it also offers excellent design ease, thermal performance, and price/performance. It is ideal for adapters and CHARGERS, server and telecom POWER SUPPLIES, LED lighting, UPS/solar, EV charging and OBC, and more.

Low loss and high-speed SWITCHES: Low Qg/Qgd, tuned Coss, and low Eoss suppress SWITCHES loss.
High efficiency is achieved under both hardware and software SWITCHES conditions.
Fast body DIODES: CFD7/CFD7A and CoolMOS™ 8 have low Qrr and short trr, achieving both robustness in the hard commutation region and efficiency.
Package optimization: Reduced parasitics and improved thermal characteristics with TO-247 4-pin, TOLL (Kelvin source)/D²PAK 7-pin, etc.
Reduces loss and temperature rise during high current and high frequency operation.

For detailed technical information, please visit the Infineon website.

Use Case 1: SMPS for Servers and Communications (PFC + LLC)

[Use case overview]
POWER SUPPLIES for data centers and communication base stations require 80 PLUS Titanium-class efficiency. Reducing losses in the PFC and LLC stages is particularly important, and the CCM totem-pole PFC configuration is becoming mainstream.
CoolMOS™ CFD7/C7/G7 are resistant to high frequency hard SWITCHES, while S7 is optimized for the low frequency leg, achieving high efficiency without using SiC.

[Major features]
CFD7/C7/G7: Low RDS(on) and low Eoss reduce SWITCHES losses in the PFC stage
S7: Optimized Qoss and body DIODES characteristics for the low frequency leg
Totem-pole PFC can achieve approximately 99% efficiency (based on evaluation board)

Use Case 2: USB-PD Adapter/Home Appliance SMPS (QR Flyback)

[Use case overview]
For USB-PD CHARGERS and standby POWER SUPPLIES for home appliances, a balance of light load efficiency, EMI and cost is important. CoolMOS™ P7 optimizes flyback characteristics, and PFD7 supports active clamping and low power motor drives with its fast body DIODES.

[Major features]
P7: Low Qg, high threshold Vth, and built-in Zener provide both noise immunity and ease of use
PFD7: Low Qrr reduces SWITCHES losses and EMI
Achieves high density with small packages (SOT-223, etc.)

Use case 3: Solar power, UPS, and EV on-board charger (PFC stage)

[Use case overview]
Solar INVERTERS, UPS, and EV OBC require high voltage and high efficiency. CoolMOS™ C7/G7/CFD7 are robust even in high dv/dt environments, boosting system efficiency.

[Major features]
650V class high voltage resistance Secure design margins
Low RDS(on)×low Eoss improves light load efficiency
Automotive and industrial grade options available