VWRAS1-D48-D15-SIP

Current - Output (Max):	33mA, 33mA
Size / Dimension:	0.87" L x 0.37" W x 0.47" H (22.0mm x 9.5mm x 12.0mm)
Package / Case:	8-SIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	78%
Operating Temperature:	-40°C ~ 85°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	1W
Series:	VWRAS1-SIP
Voltage - Output 3:	--
Voltage - Output 2:	-15V
Voltage - Output 1:	15V
Voltage - Input (Max):	72V
Voltage - Input (Min):	36V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tube

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DC-DC converters, sometimes referred to as voltage regulators, are electronic circuits that convert a higher voltage DC source to a lower voltage DC level. This is achieved by using a power transistor or adjustable voltage regulator as the switching element in the circuit. A DC-DC converter can also provide voltage isolation, allowing for the circuit to be powered by a different voltage source than the one powering the rest of the circuit.The VWRAS1-D48-D15-SIP DC-DC converter is a low power, multi-functional device that can be used for a wide range of applications. The device has a wide input voltage range of 4.5V to 48V, and can output up to 15 volts. It is suitable for providing power to different components in consumer electronic devices, automotive applications, power systems, industrial automation, and other areas. In addition, it is designed for high reliability and long life, making it ideal for many long term applications.The VWRAS1-D48-D15-SIP DC-DC converter utilizes a synchronous buck converter topology to regulate output voltage. The circuit comprises of two power switches, an inductor, and an output capacitor. The switch devices are typically configured as MOSFETs or IGBTs, and the circuit operates in a pulse-width modulation (PWM) mode.The operating principle of the converter is based on the input voltage offering clean DC power at any desired voltage level. The converter simultaneously charges the output capacitor due to inductor discharging energy during switch-off state and the input voltage reduces the effective voltage across the inductor core during switch-on state. This process continues indefinitely and the output capacitor maintains the desired DC output voltage with very low ripple.The switching process of the converter is controlled by a dedicated controller, typically based on the PWM and hysteretic controllers. The PWM controller regulates the output voltage by sensing the output voltage and manipulating the duty cycle of the pulse signal to maintain a steady DC output voltage. The hysteretic controller is based on an internal feedback voltage compared to a reference voltage to adjust the switch-on transition of the converter thus providing excellent current regulation. Furthermore, hysteretic controllers can provide fast load transient response since it is not based on any loop compensation involving a maximum duty cycle limit.The VWRAS1-D48-D15-SIP DC-DC converter can be used in a wide variety of applications from consumer electronics, to automotive, to power systems. It is designed for high reliability and long life, making it suitable for many long term applications. Its operating principle is based on the input voltage offering clean DC power at any desired voltage level, along with excellent current regulation thanks to a unique hybrid PWM and hysteretic control. This makes the converter an ideal choice for a wide variety of DC-DC conversion needs.

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