PH300A28012

Current - Output (Max):	25A
Size / Dimension:	2.40" L x 2.28" W x 0.50" H (61.0mm x 57.9mm x 12.7mm)
Package / Case:	Half Brick
Mounting Type:	Through Hole
Efficiency:	89%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, OCP, OVP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	300W
Series:	PH-A280
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	425V
Voltage - Input (Min):	200V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC-DC Converters and The PH300A28012: Application Field and Working PrincipleDC-DC converters are used within a broad range of applications, such as portable electronic devices, electric vehicles, medical equipment, and industrial processes. The PH300A28012 DC-DC converter belongs to this family of converters, and is particularly used in automotive, industrial, and military applications. This article will provide a comprehensive overview of the application field and the working principle of the PH300A28012 DC-DC converter. Application FieldThe PH300A28012 DC-DC converter is ideally suited for industrial, automotive, and military applications. This specific DC-DC converter has a 180-332VDC wide input range and a 15 to 24 VDC output range. With its 0.9" x 1.6" size and low power dissipation, it is perfect for space-restricted applications. The device has been designed to withstand severe environmental conditions, as it is rated as MIL-STD-810G and MIL-STD-1472F compliant for shock, vibration, altitude, humidity, and temperature. This is particularly important for use in industries where the conditions can vary significantly. The PH300A28012 offers excellent protection against electrical overloads, extreme temperatures, high transient voltage spikes, and short-circuit conditions. The device is rated at a maximum power of 30W and can withstand temperatures ranging from -55°C to +125°C, making it particularly suitable for a wide range of applications. Additionally, the PH300A28012 DC-DC converter has been designed with safety features, such as overvoltage protection and current limit protection.Working PrincipleThe working principle behind the PH300A28012 DC-DC converter is based on the buck-boost conversion technique. This conversion technique uses a combination of dynamic Buck and Boost circuitries to maintain stable output voltage, even in conditions of significant input voltage fluctuations. The Buck-boost converter works by firstly changing the input voltage to a higher level via Buck switching, and then converting it to a lower level via the Boost circuitry. The efficiency of the conversion is determined by the circuit design of the Buck and Boost stages, and is generally between 90% and 96%, depending on the load. The PH300A28012 DC-DC converter also has a peak power tracking (PPT), which allows the device to track the peak power and maximize the efficiency. The device also has an optional feature of output current sharing with a maximum of four converters in the ON state. This ensures that the current does not exceed the maximum current limit of the device. The PH300A28012 DC-DC converter has a high switching frequency of up to 1MHz, which allows for excellent dynamic response and significantly reduces the size and weight of the product. Additionally, the device also features a proprietary frequency-controlled PWM control for high-performance, high-voltage applications. Furthermore, the PH300A28012 features a standby function with an ultra-low power consumption of only 1mW. ConclusionThe PH300A28012 DC-DC converter is ideal for a wide range of industrial, automotive, and military applications due to its wide input range and small size. The device also provides excellent protection against electrical overloads, extreme temperatures, high transient voltage spikes, and short-circuit conditions. The working principle of the PH300A28012 is based on the Buck-boost conversion technique, and utilizes features such as peak power tracking, output current sharing, a high switching frequency, and PWM control for high performance.

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