PXF4012T0512

Voltage - Output 3:	-12V
Size / Dimension:	2.00" L x 2.00" W x 0.40" H (50.8mm x 50.8mm x 8.6mm)
Package / Case:	9-DIP Module
Mounting Type:	Through Hole
Efficiency:	85%
Operating Temperature:	-40°C ~ 100°C
Features:	Remote On/Off, OCP, OVP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.6kV
Power (Watts):	40W
Current - Output (Max):	6A, 400mA, 400mA
Series:	PXF
Voltage - Output 2:	12V
Voltage - Output 1:	5V
Voltage - Input (Max):	18V
Voltage - Input (Min):	9V
Number of Outputs:	3
Type:	Isolated Module
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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DC DC Converters

Dc/Dc converters, which are more commonly known as DC-to-DC converters, are devices that allow the direct conversion of electrical energy from direct current source to another direct current source of different potentials. As an example, the PXF4012T0512 DC/DC converter is an advanced, constant switching regulator, specifically designed to deliver high accuracy power conversion for embedded electronic devices, including power supplies in consumer electronics, industrial automation, communication systems, LED lighting, machine vision, etc. This article will discuss the PXF4012T0512 application field and working principle.

Application Field

The PXF4012T0512 dc/dc converter has a wide range of applications in terms of current conversion ranging from 0.5 amps to 5.2 amps, covering many of the needs within the industries. It is also effective in controlling any variable output requirements.The features of the converter include an innovative, low-Rdson, high-precision and low-noise operation, which gives it the capability of a wide adjustment range, higher efficiency and lower output ripple.The PXF4012T0512 is an ideal solution for local resistance and wire-resistance control technologies. It has a very low on resistance of just 1.03Ω, which allows it to achieve an output voltage rise time of only 500mV/μS. It provides a very wide input voltage range of 5-30V, as well as a wide output voltage range of 0.3-5V, making it suitable for a variety of applications.The advanced function of the converter includes PWM control, program-controlled output voltage, soft start/stop, over voltage protection, overload protection, over temperature protection and short-circuit protection. In addition, the duty cycle of output can be dynamically adjusted over the range of 0-100%.

Working Principle

The PXF4012T0512 DC/DC converter is a switching voltage regulator that utilizes a switching circuit, a control circuit, and an output filter to achieve high accuracy power conversion.The switching circuit is composed of two transistors; a P-channel MOSFET, which acts as the main switch, and a N-channel MOSFET, which is used to turn off the main switch. When the main switch is turned on, the input current flows through the main switch and charges the output filter capacitor. When the main switch is turned off, the output filter capacitor will discharge via the N-channel MOSFET and supply power to the load.The control circuit is composed of a comparator, an oscillator, and an error amplifier. The error amplifier receives a reference from the R reference pin, which sets the output voltage, and an error signal that is calculated via the comparator between the output voltage and the reference voltage. The error amplifier then modulates the duty cycle of the PWM oscillator, which in turn determines the power level outputted from the main switch.The output filter is typically a low-pass-filter with a capacitor network that smooths out the output power signal from the switching circuit. The output filter also helps reduce noise that is generated in the switching circuit. In summary, the PXF4012T0512 DC/DC converter can effectively convert energy from one DC source to another DC source of different potentials. It offers high accuracy power conversion, low-Rdson, high-precision and low-noise operation. With its wide range of applications and features, this device can be used to provide efficient power conversion for a variety of electronic devices, including power supplies in consumer electronics, industrial automation, communication systems, LED lighting, machine vision, etc.

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