V300B28T250B3

Current - Output (Max):	8.93A
Base Part Number:	V300B28T250
Size / Dimension:	2.28" L x 2.20" W x 0.50" H (57.9mm x 55.9mm x 12.7mm)
Package / Case:	9-DIP Module
Mounting Type:	Through Hole
Efficiency:	88.5%
Operating Temperature:	-40°C ~ 100°C
Features:	OVP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	250W
Series:	MINI
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	28V
Voltage - Input (Max):	375V
Voltage - Input (Min):	180V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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DC-to-DC conversion has become an essential part of energy conversion technologies, spanning from aerospace to consumer electronics. It is an efficient way to transfer energy from one voltage source to another without relying on transformers or other complex mechanical components. In this article, we will discuss the application field and working principle of V300B28T250B3, a type of DC-DC converter.The V300B28T250B3 is a continuous-mode transformer-isolation DC-DC converter that provides up to 300 watts of output power from a 28V input voltage. It features an operating efficiency of up to 94%, full specifications for EN 55032 Class B EMI compliance, and a wide input voltage range of 9V to 28V. This makes the V300B28T250B3 ideal for applications such as industrial control systems, battery charging systems, data communication systems, and automation systems.The working principle of the V300B28T250B3 is based on the principle of transformer isolation. At the input side, a power-driven inductor-capacitor (LC) filter is used to reduce ripple current. Then, a pulse-width modulation (PWM) controller is used to switch the converter\'s two primary switches on and off, thereby creating an alternating current (AC) output. The output voltage level is then adjusted via the built-in primary side power factor controller (PFC), which allows the power factor to be optimized for higher efficiency.The AC output is then transferred to the secondary side of the transformer through the primary side windings, creating an isolated power output. The secondary side windings also transform the AC output voltage to the desired level, which is then further regulated by the output power stage. Finally, the output voltage is filtered again to reduce ripple and noise.As for safety features, the V300B28T250B3 features built-in over and under voltage protection (OVP and UVP), temperature protection, and over current protection. This ensures a reliable and safe operation. In addition, the module also features low stand-by power consumption, which helps save energy and extends component lifetime.In conclusion, the V300B28T250B3 is a safe, reliable, and efficient DC-DC converter that can be used in various applications, such as industrial control systems, battery charging systems, data communication systems, and automation systems. It works on the principle of transformer isolation and provides up to 300 watts of output power from a 28V input voltage. Additionally, the module features various safety features, such as OVP, UVP, temperature protection, and over current protection. Thus, it can be used for long-term and high-load applications.

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