Profusion Industrial Semiconductors at PCIM

The components mounted inside include 6 power IGBTs and 6 soft recovery power diodes, high side and low side driver ICs, plus current limit resistors and an accurate temperature sensor.

Direct Copper Bonding has been adopted in the custom package, which achieves a 20% reduction in size for the same power ratings.

Mounting the temperature sensor on the same substrate as the power components results in faster and more accurate monitoring of chip temperature. The drive circuit is mounted internally but off the substrate, running substantially cooler for improved reliability.

Part No.	Description	Vces	Ic	Vce Typ.
SIM2-151A	High voltage 3-phase motor driver	600V	15A	1.6V
SAM265M50BS3	3-phase brushless motor driver	650V	50A	1.70V
SAM212M05BF1	3-phase brushless motor driver	1200V	5A	1.25V

AC to DC Converters Options

PWM Control: These are the simplest control ICs that vary the pulse width at a single frequency and are suitable for power levels from 0 to 100W. There are added functions to improve efficiency over a wider operating range. These include:

Burst Mode: at light loads the oscillator will stop switching for a period and then burst for a short period.
Green mode: at medium loads the frequency of oscillation is reduced to a much lower value.

Quasi-resonant: These control ICs improve efficiency by switching the power device when there is zero voltage across it, greatly reducing the switching losses. These are suitable for medium power supplies typically from 30W to 150W. There are added functions to improve efficiency over a wider operating range. These include:

Bottom skip function which limits the increase in switching frequency at light to medium loads to reduce switching losses.
Automatic standby function switches to burst mode at light loads or during standby.

Critical Conduction Mode Controllers are intended to offer medium power with simple power factor control with the minimum number of components. These are ideally suited to cost sensitive products.

Only one wound inductor required using the inductor current detection method, reducing the number of components required.
Decreased power consumption by limiting frequency of oscillation.

LLC Current Resonant Controllers are suitable for high power rated supplies. These controllers feature power factor control(PFC) to ensure sinewave current draw from the mains supply. Additional functions are added to meet the standby power regulations even from a high power rated supply. These include:

Automatic deadtime control to ensure switching occurs when zero voltage is across the power switch.
Standby Function comprises burst mode plus Soft on/off. The burst mode decreases switching losses at light loads and the soft switching decreases the otherwise audible transformer noise during burst mode.
X-capacitor discharge function. Another energy saving feature is added by removing the need for a resistor in the input filter which is always conducting and consuming power.

Digital Power Supply Controllers: These controllers combine the features of an LLC Current Resonant Controller with a bridgeless power factor control circuit with even more control. These controllers achieve the highest efficiency across a wide operating range.

Read more about digital power supply controllers

Part No.	Description	Control Type
MD6752	Fully Digital, ultra efficient with PFC & LLC	Digital
SSC3S937	High Power plus 150mW output in standby	Quasi-resonant
STR3W424MXD	All in one 70W output with universal input	PWM
STR6S161HXD	All in one 22W output with universal input	PWM

	ECX10N20	ECX10P20	ECW20N20	ECW20P20
Type	n-type	p-type	n-type	p-type
Voltage	200V	200V	200V	200V
Current	8A	8A	16A	16A
Power	125W	125W	250A	250A

DC to DC converters are integrated circuits or modules that convert a DC voltage level from one level to another. They are ubiquitous now in electronic applications due to the higher efficiency over linear regulators, although LDOs are often used as well where lower noise or ripple is required.

The development of improved integrated MOSFETs on chip has enabled the converters to operate at higher switching frequencies resulting in even smaller sizes. Some even have built in inductors with the IC package.

The proximity of the inductor and switching MOSFETs reduces losses and RFI emissions, achieving up to 91% efficiency at 100mA.

DC-DC Converters: Terminology Explained

Buck Converter: Also known as a step-down converter, it lowers the input voltage to a lower output voltage. It's widely used in applications where you need to power devices with lower voltage requirements than the input source.

Boost Converter: Also known as a step-up converter, it increases the input voltage to a higher output voltage.

Buck-Boost Converter: This type of converter can step up or step down the input voltage, depending on the requirements. It's useful in applications where the input voltage can vary widely, and a stable output voltage is needed.

Charge Pump Converter: This is a simple type of DC to DC converter that uses capacitors as energy storage elements. It's commonly used for low-power applications where simplicity and low cost are priorities, for example phantom power for microphones, or on-chip piezo drivers.

Input Voltage Range: Switching regulator ICs are available in a wide range of input / output voltages and current handling capabilities, making them versatile for various power supply designs. We offer integrated options as high as 60V and modules to 100V input.

Efficiency: Switching regulator ICs are known for their high efficiency compared to linear regulators. They can achieve efficiencies upwards of 90% in many cases, resulting in reduced power dissipation and longer battery life in portable devices.

Control Method: Switching regulator ICs employ various control methods such as voltage mode control, current mode control, or hysteretic control to regulate the output voltage. Each control method has its advantages and is suited to different applications and performance requirements.

Protection Features: Most switching regulator ICs include built-in protection features such as overcurrent protection, thermal shutdown, input/output overvoltage protection, and reverse polarity protection to ensure safe operation and protect the IC and connected components from damage.

Additional Features: Some switching regulator ICs offer additional features such as soft-start, synchronization, adjustable switching frequency, and external compensation to provide designers with greater flexibility and control over the power supply design.

Transient response: For some applications like microprocessor startups there can be large swings in power demand that need to be regulated.

Part No.	Description	Supply Voltage (Min)	Supply Voltage (Max)	Max Frequency
NJW4128	Switching regulator for buck converter current mode control with 40V/2.5A MOSFET	4V	40V	450kHz
NJW4153	Switching regulator for buck converter current mode control with 40V/1A MOSFET	4.5V	40V	1,000kHz
RP509	Low supply current PWM/VFM step-down DC/DC converter	2.3V	6.5V	7.2MHz
RP602	6.5V buck-boost DC/DC converter with synchronous rectifier	2.3V	6.5V	2.6MHz
P1690	PWM buck (step-down) DC/DC converter	4V	65V	180kHz
P1786	3A step-down switching regulator control	4V	23V	360kHz
RADCB15A5	Audio power module	6V	24V	450kHz
AUX-PLANT	Compact and versatile DC/DC converter	30V	100V	133kHz

P/N	Voltage	Current	Rds	Qc	Package
13NM60G-TN3-R	600V	13A	0.42Ω	28nC	TO220x TO252
18NM60G-TQ2-R	600V	18A	0.28Ω	38nC	TO252 TO263
21NM60L	600V	21A	0.19Ω	74nC	TO220 TO3PF
60NM60L	600V	60A	0.065Ω	156nC	TO247 TO3P
60NM65G-T47-T	650V	60A	0.065Ω	174nC	TO247
18NM65G	650V	18A	0.33Ω	44nC	TO252 DFN8080-4
24NM65G	650V	24A	0.16Ω	66nC	TO220x DFN8080-4
30NM65L	650V	30A	0.14Ω	77nC	TO220x TO247
8NM70L	700V	8A	0.85Ω	22nC	TO22x TO252
12NM80G-TF1-T	800V	12A	0.42Ω	50nC	TO220x
12NM80G-TQ2-R	800V	12A	0.42Ω	50nC	TO263
21NM80-Q	800V	21A	0.3Ω	73nC	TO220F DFN8080-4
8NM120G-TF1-T	1200V	8A	1.35Ω	52nC	TO220F1
8NM120G-TN3-R	1200V	8A	1.35Ω	52nC	TO25

Profusion Ltd is a specialist semiconductor distributor that has supplied the audio and electronics industry for nearly 35 years, forging close ties with global partners who design and manufacture a wide range of state-of-the-art components.

In 2022 we added industrial focused and power components to our range to meet the growing demands of electrification. Our objectives are to help improve power conversion efficiency which reduces overall energy demand and resources. In addition, we aim for improved functionality and reliability that will help products last longer and be more sustainable.

Profusion has locations in the United Kingdom, Hong Kong, Germany and Denmark. We have the inventory, pricing and expertise to meet your semiconductor and electronic component demands.

Driving the Future with Industrial Motor Drivers & Power Semiconductors

Intelligent Power Modules (IPMs)

Compact 3-phase all-in-one motor drivers ideal for high-voltage industrial machinery.

AC-DC Converters

Sanken’s MD6751/2 offers a 3.5% improvement in efficiency - this equates to 30% less losses, and therefore smaller power components.

EXICON Lateral MOSFETs

Designed specifically for high power, high performance linear amplification, lateral MOSFETs are free from secondary breakdown, and offer a wide safe operating area. No need for current sharing resistors.

DC-DC Converters

Miniature DC-DC converters running at 6Mz with the inductor built into the 2.2 x 2mm QFN package.

Super Junction MOSFETs

High voltage, low loss, low cost MOSFETs with rugged avalanche characteristics. For AC-DC converters and motor drivers.

About Profusion