R-78E5.0-0.5

Series:	INNOLINE R-78E
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Linear Regulator Replacement
Number of Outputs:	1
Voltage - Input (Min):	7V
Voltage - Input (Max):	28V
Voltage - Output 1:	5V
Voltage - Output 2:	--
Voltage - Output 3:	--
Current - Output (Max):	500mA
Power (Watts):	3W
Applications:	ITE (Commercial)
Features:	SCP
Operating Temperature:	-40°C ~ 85°C
Efficiency:	92%
Mounting Type:	Through Hole
Package / Case:	3-SIP Module
Size / Dimension:	0.46" L x 0.33" W x 0.41" H (11.6mm x 8.5mm x 10.4mm)
Control Features:	--

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DC DC Converters

DC-DC converters are an essential type of power system that allows voltage to be stepped up or down, and are used to convert electric energy sources from one voltage level to another. One of the most widely used types of DC-DC converters is the R-78E5.0-0.5 model. This article will discuss the application field and working principle of the R-78E5.0-0.5 DC-DC converter.

Application Field

The R-78E5.0-0.5 is a type of isolated switch mode DC-DC converter used to step down the input voltage and frequency, while maintaining constant voltage at the output. This makes it an ideal choice for applications that require steady power sources, such as communication systems, in which electronic devices must operate at a precise voltage level. Additionally, due to its high efficiency, it is suitable for LED lighting systems, electrical medical equipment, consumer appliances, and portable devices.

Working Principle

The R-78E5.0-0.5 DC-DC converter is based on a switching converter topology powered by an integrated circuit (IC). This IC controls the switching of a power MOSFET switch connected between the input voltage source and the output. The switching is generated by a high frequency oscillator at a rate of 200 kHz so that as the input voltage changes, the output voltage remains stable.When the IC applies a pulse signal to the gate of the power MOSFET switch, it is turned ON, allowing the current to flow through the switch and to the output. This leads to a brief burst of energy at the output, which is detected by a secondary winding of the transformer, creating a voltage that is rectified and filtered to produce a constant DC voltage output.When the IC stops applying the pulse signal, the power MOSFET switch is turned OFF, and the current is stopped. This results in a energy-discharging process that forces the output voltage to go back to its original level. However, the overall efficiency of the R-78E5.0-0.5 DC-DC converter is not affected by this process.

Conclusion

The R-78E5.0-0.5 DC-DC converter is a highly efficient, isolated switch mode converter that is suitable for a wide range of applications. It operates by switching on and off a power MOSFET switch at high frequencies, creating stable voltage outputs. This makes it an ideal choice for applications that require a steady power source.

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