EXB50-48S3V3

Current - Output (Max):	10A
Size / Dimension:	2.40" L x 2.28" W x 0.43" H (61.0mm x 57.9mm x 10.9mm)
Package / Case:	9-DIP Module, 8 Leads
Mounting Type:	Through Hole
Efficiency:	90%
Operating Temperature:	-40°C ~ 70°C
Features:	OTP, OVP, SCP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	33W
Series:	EXB50
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	--

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DC DC Converters – EXB50-48S3V3 Application Field and Working Principle

DC to DC converters are considered essential units of power conversion as they help transfer power efficiently between different DC voltage sources. The EXB50-48S3V3 DC converter is a high-efficiency, isolated DC/DC converter offered by Tyco Electronics. It offers innovative circuitry and rugged construction to ensure reliable and long-term operation.The EXB50-48S3V3 has a wide range of applications, which include medical systems, wireless base stations, IT infrastructure, test and measurement systems, embedded industrial systems, and more. Its features advantages such as high efficiency, wide output range, wide input voltage range, 2500VDC isolation, and adjustable output voltage with external trimmer.

EXB50-48S3V3 Working Principle:

The EXB50-48S3V3 operates using a flyback topology, which is a versatile form of DC-DC converter. Due to its small size, low cost, simple design, and high reliability, the flyback topology has attained tremendous popularity in the power conversion industry.In flyback topology, the energy is stored in a primary-winding-induced magnetic field when the switch turns off. The stored energy is then dissipated as the primary winding is re-energized with the same polarity when the switch turns ON. The stored energy is transformed into multiple secondary windings simultaneously. During the OFF phase of the switch, the energy is transferred back to the primary winding and a portion of the energy is transferred to the load circuit.

EXB50-48S3V3 Input Current:

The input current of the EXB50-48S3V3 is limited by the continuous load current that must flow through the switch FET. The switch FET must be sized such that it is capable of sustaining the maximum input current without significantly affecting the converter’s efficiency or reliability. As a result, the maximum input current of the converter is limited to the current limit of the chosen switch FET.

EXB50-48S3V3 Output Voltage:

The EXB50-48S3V3 is capable of delivering an adjustable output voltage range from ±1.2V to ±48V. This is accomplished by making use of an external trimming voltage. The trimming voltage can be adjusted to make the output voltage equal the desired value.

EXB50-48S3V3 Output Power:

The output power of the EXB50-48S3V3 is limited by the parameters of the transformer and the current rating of the output filter.The output power achievable with the EXB50-48S3V3 is rated at up to 500W when additional cooling is added to the converter.

EXB50-48S3V3 Efficiency:

The EXB50-48S3V3 offers an efficiency of up to 98%, ensuring reliable and long-term operation. Its wide input voltage range permits efficient power transfer between different sources.

Conclusion:

The EXB50-48S3V3 DC DC converter is an incredibly versatile unit offering a wide range of features and advantages. Its flyback topology allows it to efficiently convert power between different DC voltage sources, whilst also delivering an adjustable output voltage range of up to ±48V. Its features such as high efficiency and wide input voltage range make it an ideal choice for applications ranging from medical systems and wireless base stations to IT infrastructure and embedded industrial systems. Despite its wide range of applications, it is important to take into consideration the parameters of the transformer and the current rating of the output filter to ensure optimum power delivery.

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