SQE48T20050-NDA0G

Current - Output (Max):	20A
Control Features:	Enable, Active Low
Size / Dimension:	2.30" L x 0.90" W x 0.37" H (58.4mm x 22.9mm x 9.4mm)
Package / Case:	8-DIP Module, 1/8 Brick
Mounting Type:	Through Hole
Efficiency:	91%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, OCP, OTP, OVP, SCP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	2.25kV
Power (Watts):	100W
Series:	SQE48
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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DC-DC Converters: SQE48T20050-NDA0G Application Field and Working Principle

DC-DC converters are widely used in various kinds of electronic equipment. DC-DC converters help to convert voltage from the battery, such as 12V to the voltage required by the part, such as 5V. The SQE48T20050-NDA0G series of DC-DC converters is especially built for commercial airplanes as they come in ruggedized packages and offer 30W of electrical power. In this article, we will discuss the application fields and working principle of the SQE48T20050-NDA0G series of DC-DC converters.

Application Field

The SQE48T20050-NDA0G DC-DC converter series is designed specifically for commercial aircraft applications. This series is designed to meet the technical requirements of aviation-level electronic and electrical products, so it is widely used in aircraft systems, such as engine control, cabin lighting, and avionics. The SQE48T20050-NDA0G DC-DC converter series is designed to meet aviation EMI requirements and provide high reliability and stability for long-term aerospace applications. It has a wide input voltage range and support input voltages from 10V to 48V. This series also has a wide operating temperature range from -55°C to 105°C. The SQE48T20050-NDA0G DC-DC converter series is designed to meet the strict aviation standards, and it is tested to meet the needs for reliable operation on commercial aircraft. The SQE48T20050-NDA0G DC-DC converter series also comes with ruggedized packages which can withstand extreme temperature, vibration, and shock.

Working Principle

The SQE48T20050-NDA0G DC-DC converter series works on the principle of converter topology, also known as a buck-boost topology. This type of topology is basically used to convert a low input voltage of 10V to 48V into a high output voltage of 3.3V to 24V. The converter uses a step-down switching regulator as its main circuit element. This switching regulator consists of two power FETs in series and the output voltage is adjusted by controlling the duty cycle applied to the FETs. When the input voltage is lower than the output voltage, the converter output is boosted in order to increase the output voltage. When the input voltage is higher than the output voltage, the converter output is bucked, in order to decrease the output voltage. In addition, the SQE48T20050-NDA0G DC-DC converter series also has a built-in protection circuit which can protect the converter from inrush current, overload, and short-circuit. It can also provide reverse-polarity and under-voltage protection.

Conclusion

The SQE48T20050-NDA0G DC-DC converter series is designed specifically for commercial aircraft applications and it is available in ruggedized packages which can withstand extreme temperature, vibration and shock. It is built to meet aviation EMI requirements and provide high reliability and stability for long-term aerospace applications. The converter works on the principle of converter topology, which is basically used to convert a low input voltage of 10V to 48V into a high output voltage of 3.3V to 24V. It also has a built-in protection circuit which can protect the converter from inrush current, overload and short-circuit.

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