REC3-1212SRW/H6/A/M/CTRL

Current - Output (Max):	250mA
Control Features:	Enable, Active Low
Size / Dimension:	1.26" L x 0.80" W x 0.40" H (32.0mm x 20.3mm x 10.2mm)
Package / Case:	24-DIP Module, 8 Leads
Mounting Type:	Through Hole
Efficiency:	85%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial), Medical
Voltage - Isolation:	6kV
Power (Watts):	3W
Series:	ECONOLINE REC3-SRW
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	18V
Voltage - Input (Min):	9V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC-DC converters are used to convert a source of direct current (DC) from one voltage level to another. REC3-1212SRW/H6/A/M/CTRL is a non-isolated buck switching converter, which is capable of providing a regulated DC output voltage from a wide input voltage range.This converter employs a synchronous rectification technique for high efficiency. It has a wide input voltage range of 9V–36V which provides different solutions for different application scenarios. The output voltage is adjustable from 0V to 12V with excellent line and load regulation.

Features

• Wide input voltage range: 9V – 36V
• Wide output voltage range: 0V – 12V
• Adjustable output voltage
• Low standby power consumption
• Over temperature protection
• High efficiency up to 92%
• Fully encapsulated & isolated case

Application Fields

The REC3-1212SRW/H6/A/M/CTRL is most commonly used for applications such as LED lighting, solar energy systems, industrial automation, power supplies, and automotive applications.

Working Principle

This DC-DC converter is a non-isolated buck converter operated in the continuous conduction mode (CCM). When it is operating in the CCM, the converter’s inductor current is almost continuous over the entire switching period. The inductor operates in the DCM (Discontinuous Conduction Mode) when it is operating near the full load. The DCM reduces the output ripple, improving the output voltage regulation and increasing the overall efficiency of the converter. The transistor switches provide current to the inductor, which stores energy in the magnetic field, when they are in the ON state. When the transistor switches are in the OFF state, the inductor releases the energy to the output capacitor. This process, when repeated, produces a regulated output voltage. The converter can also operate in a pulsed frequency modulation (PFM) mode, where the duty cycle is constantly changing, to maintain a low output ripple.

Conclusion

The REC3-1212SRW/H6/A/M/CTRL is a high efficiency DC-DC converter designed for a wide range of applications. It provides excellent line and load regulation with a wide input voltage range. The converter is suitable for applications such as LED lighting, solar energy systems, industrial automation, power supplies, and automotive applications. The converter operates in either the continuous conduction mode or the pulsed frequency modulation mode, depending on the output load.

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