On September 4, 2025, Dalian University Holdings, a leading international semiconductor component distributor dedicated to the Asia Pacific market, announced that its subsidiary Pinjia has launched an air conditioning power supply solution based on Infineon's 2.5kW PFC evaluation board.

Figure 1- Display board diagram of the 2.5kW air conditioning power supply solution based on Infineon products by Da Da Da Da Pin Jia

With the continuous expansion of the global air conditioning market, the energy efficiency and reliability of power systems have become the core challenges of industrial upgrading. In response to consumers' demand for high efficiency and strong stability in air conditioning, DaDaDa PinJia has launched an air conditioning power supply solution based on Infineon 2.5kW PFC evaluation board. This solution perfectly combines high-performance CoolMOSTM C7 super junction MOSFET and its innovative 4pin package, advanced SiC diode, powerful CCM-PFC controller, and gate driver IC with high speed and anti-interference, achieving higher efficiency, better signal quality, and higher power density.

Figure 2- Scene application diagram of the 2.5kW air conditioning power supply solution based on Infineon products by Da Da Da Da Pin Jia

The Infineon 2.5kW PFC evaluation board integrates CoolMOSTM C7 super junction MOSFET IPZ60R040C7, silicon carbide Schottky diode IDH16G65C5, CCM-PFC controller ICE3PCS01G, and EiceDRIVE compact gate driver IC IEDI60N12AF. Among them, IPZ60R040C7 has ultra-low on resistance and switching loss, and has the ability to reduce magnetic components and improve power density at high switching frequencies. The reduction of Eoss helps to improve efficiency under light loads, while the low Qg value enables faster switching speeds and lower Eon and Eoff, thereby enhancing efficiency across the entire load range.

IDH16G65C5 has improved thermal characteristics and lower quality factor, which can improve efficiency under all load conditions and provide strong dv/dt stability of up to 100V/ns, making it ideal for use with the CoolMOSTM C7 series products with fast switching. ICE3PCS01G is designed specifically for power applications such as PCs, servers, and telecommunications, with adjustable switching frequency and the ability to synchronize with external frequencies. In addition, it has a digital integrated voltage circuit compensation function, which not only achieves better dynamic response, but also reduces design difficulty.

IEDI60N12AF is based on Core Transformer (CT) technology and supports CoolMOSTM MOSFETs in 3pin and 4pin packages. CT technology provides isolation of up to 1200V and has high speed and excellent common mode transient immunity (CMTI). In the case of rapid voltage transients, this characteristic is crucial for driving MOSFETs.

Figure 3- Block diagram of the 2.5kW air conditioning power supply solution based on Infineon products by Da Da Da Da Pin Jia

The CoolMOSTM C7 series MOSFET used in this solution adopts a TO-247 4pin package, and the fourth pin of the package serves as a Kelvin source, which can significantly reduce the parasitic inductance of the power MOSFET source pin and improve the efficiency of the hard switching topology. In applications such as CCM-PFC, the switching loss of TO-247 4pin can be reduced by up to 8% compared to the standard TO-247 3pin package. For example, in a 1.2kW CCM-PFC, this feature is equivalent to saving 3.5W of power or increasing full load efficiency by 0.3%.

Thanks to the excellent performance of the product, this solution can achieve an efficiency of over 98% in high-voltage input, and also integrates multiple protection functions such as overvoltage protection (OVP), peak current limitation (PCL), and soft start mechanism, which can further enhance system safety.

Core technological advantages:

Using TO-247 4pin CoolMOSTM C7 MOSFET:

Extremely low on resistance and switching losses: This makes it possible to operate at high switching frequencies, helping to reduce the size of magnetic components and increase power density;

Eoss reduction: helps improve efficiency under light loads;

Low gate charge (Qg): Achieve faster switching and reduce on loss (Eon) and off loss (Eoff), thereby improving efficiency across the entire load range;

Easy to use and implement;

A wide product portfolio that can meet the specific needs of hard switch applications such as servers, PC power supplies, telecommunications rectifiers, and solar energy;

Provide the lowest unit package on resistance RDS (on) on the market.

thinQ! TM SiC Fifth Generation Diode (IDH16G65C5):

Representing Infineon's leading technology in SiC Schottky diodes;

By combining improved heat dissipation characteristics and lower quality factor (Qc × Vf), efficiency can be improved under all load conditions;

Provides strong dv/dt stability up to 100V/ns, making it ideal for pairing with the CoolMOSTM C7 series with fast switching.

CCM-PFC Controller (ICE3PCS01G):

Specially designed for power applications that require high efficiency and excellent power factor, such as PCs, servers, and telecommunications;

Voltage circuit compensation with digital integration can achieve better dynamic response and lower design difficulty;

Highly integrated design minimizes the number of peripheral components to the greatest extent possible;

The gate switch frequency is adjustable, ranging from 21kHz to 250kHz, and can synchronize with external switch frequencies of 50kHz to 150kHz;

Support continuous conduction mode (CCM) to achieve near unity power factor;

Having average current control;

Equipped with multiple protection functions to ensure the safe operation of the system and equipment.

Gate driver IC (EiceDriveTM Compact IEDI60N12AF):

Based on CT (Coreless Transformer) technology, CoolMOSTM supports 3pin and 4pin packaging;

CT technology provides isolation of over 1200V, as well as high speed and excellent common mode transient immunity (CMTI), which is crucial for driving MOSFETs under fast voltage transients;

The output capability of 6A is sufficient to quickly switch 19 m Ω CoolMOSTM;

Even with the use of components with higher on resistance, the powerful driving capability helps reduce gate oscillation during fast switching;

CMTI with dv/dt ≥ 100V/ns is necessary for high conversion noise feedback from drain to gate signals in fast switching mode;

The output of the driver has independent positive and negative outputs, making it easy to adjust the on and off behavior of MOSFETs;

The advantages of TO-247 4pin packaging are demonstrated, achieving very fast switching behavior and clean gate waveform, and improving system stability. The Kelvin source can be completely isolated from the power path.

Scheme specifications:

Input voltage: 85VAC~265VAC;

Input current: 14A;

Input frequency: 47Hz~63Hz;

Output voltage and current: 400VDC, 6.25A;

Output power: approximately 2.5kW (when the input voltage is 230VAC);

Average efficiency: 95% (at 115VAC);

Switching frequency: possible range from 40kHz to 250kHz;

The onboard frequency is set to 65kHz;

Changes can be made through R20;

Power switch: 4-pin and 3-pin MOSFETs.

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Media Relations

Name: John Chen

Email: salesdept@topcomponents.ruThis is reported by Top Components, a leading supplier of electronic components in the semiconductor industry. They are committed to p with the most necessary, outdated, licensed, and hard-to-find parts.

Media Relations Name: John Chen

Email: salesdept@topcomponents.ru