UEI25-050-D48PM-C

Series:	UEI25
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Isolated Module
Number of Outputs:	1
Voltage - Input (Min):	36V
Voltage - Input (Max):	75V
Voltage - Output 1:	5V
Voltage - Output 2:	--
Voltage - Output 3:	--
Current - Output (Max):	5A
Power (Watts):	25W
Voltage - Isolation:	2.25kV
Applications:	ITE (Commercial)
Features:	Remote On/Off
Operating Temperature:	-40°C ~ 85°C
Efficiency:	91%
Mounting Type:	Surface Mount
Package / Case:	6-SMD Module, 1x1 Brick
Size / Dimension:	1.10" L x 0.96" W x 0.34" H (27.9mm x 24.4mm x 8.7mm)
Control Features:	Enable, Active High

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Definition

DC-DC Converters are electronic circuits which convert one DC voltage to another DC voltage. The UEI25-050-D48PM-C is a graded DC-DC Converter with a 25 Volts DC output from a 48 Volts DC input.

Features

The features of the UEI25-050-D48PM-C are:• High efficiency DC-DC conversion;• Low on-resistance;• Wide input voltage range;• High output voltage accuracy;• Current protection;• Over-temperature protection;• Short-circuit protection;• Reverse polarity protection;• Low profile;• Surface mountable; and• UL 94V-0 rated.

Application Fields

The UEI25-050-D48PM-C is typically used in applications requiring a wide range of input voltages such as industrial control systems, power supplies for FPGAs, automotive applications, and medical equipment. It is suitable for applications where high voltage accuracy and current protection are required, as well as for applications that require a high-profile design or surface mounted components.

Working Principle

The UEI25-050-D48PM-C operates by converting direct current (DC) voltage to a lower DC voltage via the use of transformers and switches. It is designed to have an input voltage of 48 volts and an output voltage of 25 volts, at an efficiency of up to 90%.The transformer in the UEI25-050-D48PM-C consists of two sets of windings with opposite magnetic polarities. Each set generates a separate output voltage when current is applied to the windings. The input windings are connected to a switch, while the output windings are connected to another switch. The connection between the input and output windings provides a feedback loop, allowing the switching of the voltage between the input and output windings.The switches are turned on and off to control the ratio between the input and output voltages. When the input voltage is higher than the output voltage, the output windings generate a pulse voltage, which is then amplified and used to control the switches. Conversely, when the output voltage is higher than the input voltage, the input windings generate a pulse voltage, which is then amplified and used to control the switches.The output voltage is regulated by a feedback system, which adjusts the voltage ratio between the input and output windings. The feedback system also includes protection circuits to prevent over-settling or under-settling, as well as over-temperature and short circuit protection.

Conclusion

The UEI25-050-D48PM-C is a high efficiency DC-DC converter that converts an input of 48 volts DC into an output of 25 volts DC. It has a wide input voltage range, high output voltage accuracy, current protection, over-temperature protection, short-circuit protection, and reverse polarity protection features. It is typically used in industrial control systems, power supplies for FPGAs, automotive applications, and medical equipment.

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