QM48T40010-NBBT

Current - Output (Max):	40A
Control Features:	Enable, Active Low
Size / Dimension:	2.28" L x 1.45" W x 0.36" H (57.9mm x 36.8mm x 9.1mm)
Package / Case:	8-DIP Module, 1/4 Brick
Mounting Type:	Through Hole
Efficiency:	90.5%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, OCP, OTP, OVP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	2kV
Power (Watts):	40W
Series:	QM
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	1V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Bulk

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DC DC Converters

DC DC converters are a type of power converter that typically converts direct current (DC) from one voltage level to another. Specifically, the QM48T40010-NBBT is an isolated DC DC converter module with 4:1 input range, adjustable output voltage, short circuit protection, and 40-50% efficiency. Its wide operating temperature range, from -40°C to +85°C, makes it suitable for use in a wide variety of applications. In this article, we will examine the typical applications and working principle of the QM48T40010-NBBT.

Applications

The QM48T40010-NBBT is commonly used for applications requiring voltage conversion, isolation, regulation, and high efficiency. It is especially well-suited for applications where the input voltage could fluctuate, such as wind turbines or photovoltaic panels. It has seen growing use in the automotive industry, as the increasing use of electric and hybrid vehicles demands more efficient DC-DC converters. It is also well-suited for power supplies in the consumer electronics market, as its high efficiency and small size make it a perfect solution for space-constrained products. It is also often used in DC to AC inverters, power supplies, medical equipment, and various types of industrial control systems.

Working Principle

The QM48T40010-NBBT works by taking an input voltage and either increasing or decreasing it prior to output. It uses a combination of several components- inductors, capacitors, and transistors- to convert the input voltage to the desired output. First, the input voltage is inputted into the inductor and capacitor. When the input is switched, the voltage across the inductor and capacitor rises, storing energy as magnetic energy in the inductor. When the current stops flowing, the magnetic energy stored in the inductor is transferred into the output. At the same time, the energy stored in the capacitor is transferred to the output. This process is repeated over and over, converting the input voltage to the desired output. The QM48T40010-NBBT is also equipped with short circuit protection, which is designed to protect the converter in case of a short circuit. If the output voltage exceeds the set value, the converter responds by cutting off the output voltage until the short circuit is resolved.

Conclusion

The QM48T40010-NBBT is an efficient and reliable DC DC converter equipped with several features, including short circuit protection, adjustable output voltage, and wide operating temperature range. These features make it suitable for a variety of applications including automotive, medical equipment, power supplies, and DC to AC inverters. It works by taking an input voltage and either increasing or decreasing it prior to output, using a combination of inductors, capacitors, and transistors.

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