Current - Output (Max):	21mA, 21mA
Size / Dimension:	0.60" L x 0.42" W x 0.28" H (15.2mm x 10.7mm x 7.0mm)
Package / Case:	10-SMD Module
Mounting Type:	Surface Mount
Efficiency:	75%
Operating Temperature:	-40°C ~ 100°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	500mW
Series:	ECONOLINE R0.5D
Voltage - Output 3:	--
Voltage - Output 2:	-12V
Voltage - Output 1:	12V
Voltage - Input (Max):	26.4V
Voltage - Input (Min):	21.6V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DC-DC Converters: Overview of R0.5D10-2412-R Application Fields and Working Principles

Introduction

DC-DC converters are increasingly utilized in a range of applications due to their versatile nature of converting DC voltages from one voltage level to another. The R0.5D10-2412-R is a recently-manufactured DC-DC converter which is capable of converting between 0.5V and 24V DC at a maximum current of 12A. It is an ideal component for applications where a regulated power supply is necessary in a confined space, such as in automotive electronics. This article will provide an overview of the R0.5D10-2412-R’s application fields, contexts, and working principles.

Application Fields and Contexts

The R0.5D10-2412-R is most suitable for applications that require low/intermediate current but high voltage conversion. Common applications include automotive electronics, such as electronic engine control systems, vehicle-charging systems, lighting systems, and electric/hybrid vehicles. It is also suitable for use in wireless systems, and as part of novel low voltage electronics, such as bio-medical equipment. This component is particularly appropriate where space is restricted. In addition, as the device has an efficiency of up to 85%, it is ideal for energy saving applications.

R0.5D10-2412-R Working Principle

The principle of DC-DC converters involves two main steps: the conversion of input voltage to an intermediate voltage, and the subsequent conversion to the output voltage. This conversion is primarily regulated by an internal switching circuit. In the case of the R0.5D10-2412-R, the switching circuit is composed of five circuits: rectifier, buffer, PWM controller, switch, and inductor (Fig 1).

Fig 1 - R0.5D10-2412-R Internal Circuitry

The conversion of the input voltage to the intermediate voltage is achieved using a rectifier circuit. This circuit utilises a diode bridge rectifier, which prevents current from running back into the input source. The output voltage is next converted to a pulse-width modulated waveform by a PWM controller. This allows for voltage adjustment and is used to regulate the output voltage level. This PWM signal is then amplified by a buffer circuit, and is used to drive a switch circuit. This switch circuit is controlled by the PWM signal, and is used to open and close the switching transistor. Finally, the inductor filters the PWM signal in order to ensure a stable output voltage.

Conclusion

The R0.5D10-2412-R is a versatile DC-DC converter which can be used to provide regulated output voltages from 0.5V to 24V. It is ideal for use in applications where space is limited and low/intermediate currents and voltages are required, such as automotive electronics, wireless systems, and bio-medical equipment. The internal circuitry of the device utilises a rectifier circuit, buffer, PWM controller, switch, and inductor to convert the input voltage to the required output voltage.

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