TUNS300F28

Power (Watts):	300W
Approvals:	CE, cURus, TUV
Load Regulation:	56mV
Line Regulation:	56mV
Size / Dimension:	4.62" L x 2.42" W x 0.50" H (117.3mm x 61.5mm x 12.7mm)
Package / Case:	7-DIP Module
Mounting Type:	Through Hole
Efficiency:	89%
Operating Temperature:	-40°C ~ 100°C (With Derating)
Features:	Universal Input
Applications:	ITE (Commercial)
Series:	TUN
Current - Output (Max):	11A
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	28V
Voltage - Input:	85 ~ 264 VAC
Number of Outputs:	1
Type:	Enclosed
Lead Free Status / RoHS Status:	--
Part Status:	Active

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The TUNS300F28 AC-DC Converter is a high power, high reliability, plug-in type AC-DC converter developed by Great Wall Technology Co., Ltd.. It is suitable for high power equipment such as industrial equipment and telecommunications and is widely used in 500 ~ 1000W output power occasions.This converter’s input voltage range is 85-264VAC, 47-63HZ. Its output voltage range is 12VDC/24VDC/48VDC. It has a wide range of applications such as industrial automation, telecommunications and other fields.The TUNS300F28 AC-DC Converter is suitable for industrial automation, telecommunications, audio and video equipment, military equipment, instrumentation, computers and other occasions with a power range of 500 ~ 1000W. Its wide operating temperature range, high reliability, high efficiency and low electromagnetic interference make it an ideal power supply for these applications.The TUNS300F28 AC-DC Converter is based on the PWM (Pulse Width Modulation) constant voltage conversion principle. It uses a high-frequency transformer to perform AC-DC conversion, rectification and filtering. In this way, power conversion from AC to DC is achieved.The converter has a single loop control system, which is composed of an error amplifier, a voltage reference source, a PWM comparator and a serial trigger circuit. It accepts the DC output voltage feedback signal from the output of the rectification filter, compares the output voltage with the fixed reference voltage, and then amplifies their differences. Compared with the signal of the fixed reference voltage, the output signal of the error amplifier generates a PWM waveform. This PWM waveform is used to drive the power switch on and off.The TUNS300F28 AC-DC Converter is a high power, high reliability, plug-in type AC-DC converter developed by Great Wall Technology Co., Ltd.. It is suitable for high power equipment such as industrial equipment and telecommunications, and can be used for applications with a power range of 500 ~ 1000W. It is based on the PWM constant voltage conversion principle and has a single loop control system. Its wide operating temperature range, high reliability, high efficiency and low electromagnetic interference make it an ideal power supply for these applications.

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