Voltage - Output 3:	--
Control Features:	Enable, Active Low
Size / Dimension:	0.86" L x 0.36" W x 0.44" H (21.8mm x 9.2mm x 11.1mm)
Package / Case:	8-SIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	78%
Operating Temperature:	-40°C ~ 71°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial), Medical
Voltage - Isolation:	2kV
Power (Watts):	3W
Current - Output (Max):	600mA
Series:	ECONOLINE RS3
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	36V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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DC-DC Converters

RS3-243.3S/H2 Application Field and Working Principle

DC-DC converters are a very important type of power supplies providing power conversion from one level to another with an efficiency higher than traditional linear mode regulators. The RS3-243.3S/H2 model is widely used in 9-24V applications, providing a constant output voltage and current up to 243 W.This family of converters is a type of isolated converters featuring high efficiency, thanks to their high frequency switching technology. The topology of these converters is based on a flyback structure with a low side MOSFET switch, primary control and isolated feedback structure so the output voltage and current regulation are very accurate. It can achieve tight accuracy of 0.5% across its set range and the PWM signal is adjustable.The converter includes a synchronous transfer rectifier on the output side that eliminates low current spikes due to the power output capacitance. This rectifier helps minimize the output ripple and makes the converter compliant with many international standards such as CEC, EPA, and ErP Level VI.The working principle of RS3-243.3S/H2 is based on a loop control circuit. It uses a PWM controller, a power factor corrector, and an error comparator. The error comparator compares the output data with the reference voltage curve of the output put to close or open the PWM controller, thereby regulating the output voltage and current.At the lower side, the converter receives an AC voltage from the AC power line and feeds it to the primary side of the converter. The primary control loop then switches the power MOSFET at a high frequency. The transformer then steps the voltage up or down and the synchronous rectifiers on the output side convert the output voltage and current regulated by the PWM controller. Designers can optimize their designs using the RS3-243.3S/H2 module\'s various features. It is inherently short-circuit proof and reliable due to its protection features like output current fold-back protection, thermal protection, power output short-circuit protection, etc. It also provides active clamp or synchronous rectification for even higher efficiency.Overall, the RS3-243.3S/H2 DC-DC converters offer high efficiency power conversion with industry-leading accuracy and a wide set of features. It is ideal for applications in medical, industrial, and telecom markets. With its high power conversion rate and low emissions, this series of converters is designed to meet the stricter requirements of today’s energy saving regulations.

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