R-78HB5.0-0.5

Voltage - Output 2:	--
Size / Dimension:	0.45" L x 0.33" W x 0.69" H (11.5mm x 8.5mm x 17.5mm)
Package / Case:	3-SIP Module
Mounting Type:	Through Hole
Efficiency:	87%
Operating Temperature:	-40°C ~ 85°C
Features:	OTP, SCP
Applications:	ITE (Commercial)
Power (Watts):	3W
Current - Output (Max):	500mA
Voltage - Output 3:	--
Series:	INNOLINE R-78HB
Voltage - Output 1:	5V
Voltage - Input (Max):	72V
Voltage - Input (Min):	9V
Number of Outputs:	1
Type:	Linear Regulator Replacement
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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DC DC Converters: R-78HB5.0-0.5 Application Field and Working Principle

DC-DC converters are important components used in a wide range of applications. The R-78HB5.0-0.5 is one such device that not only brings its versatility to bear on the job, but also a host of other desirable features.In this guide, we will discuss the application fields and the working principles behind the R-78HB5.0-0.5. This device is mainly used in medical, consumer, automation, and automotive applications. It is a isolator and benefits from efficient galvanic isolation between input and output conduits.The R-78HB5.0-0.5 is a two-stage converter designed with a flyback topology. In the topology, the device uses a secondary winding to transfer the energy from a primary winding, which is connected to the input. This process allows the device to covert one DC voltage output to either a higher or lower DC voltage output.The converter uses one transformer with a primary winding and three secondary windings. One secondary winding is used to generate the output, while the other two generate different reference voltages. Each secondary winding passes through a synchronous rectifier, which rectifies the AC voltage into a DC output voltage.The R-78HB5.0-0.5 has primary control, current foldback, ripple rejection, and open-loop/closed-loop compensation features. The primary control feature allows the device to protect the primary side by setting the maximum primary current limit. The current foldback feature helps the device reduce the input current automatically when the output current is set higher than the device’s current limit.The ripple rejection feature ensures that noisy signals on the input power line do not interfere with the device’s control and regulation. Finally, the open-loop/closed-loop compensation feature allows the device to maintain a constant output current, even when the input voltage fluctuates.The converter also contains protection features. The flag pin indicates whether the device has reached its current limit. It also features overvoltage protection, over-temperature protection, and a soft start mechanism to prevent output overshoot.To sum up, the R-78HB5.0-0.5 is a DC-DC converter that offers amazing features such as current foldback, ripple rejection, open-loop/closed-loop compensation, and an array of protection features. It is ideal for applications such as medical, consumer, automation, and automotive. The device is designed with a flyback topology that allows it to convert one DC voltage output to either a higher or lower DC voltage output.

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