PTK25-D48-T515

Current - Output (Max):	3.5A, 250mA, 250mA
Control Features:	Enable, Active High
Size / Dimension:	2.00" L x 2.00" W x 0.40" H (50.8mm x 50.8mm x 10.2mm)
Package / Case:	8-DIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	--
Operating Temperature:	-20°C ~ 71°C
Features:	Remote On/Off, OCP, OVP
Applications:	ITE (Commercial)
Voltage - Isolation:	500V
Power (Watts):	25W
Series:	PTK25
Voltage - Output 3:	-15V
Voltage - Output 2:	15V
Voltage - Output 1:	5V
Voltage - Input (Max):	72V
Voltage - Input (Min):	36V
Number of Outputs:	3
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	--

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DC DC Converters: PTK25-D48-T515 Application Field and Working Principle

DC DC converters are electronic devices that convert direct current (DC) electrical power from one voltage level to another. The PTK25-D48-T515 is a modular, high-quality, commercially available DC-to-DC converter designed to provide reliable power conversion and low efficiency. This product is suitable for applications requiring high efficiency, high voltage switching, and small form factor.

Application Field

The PTK25-D48-T515 is suitable for switching supplies or for DC-to-DC conversion in industrial, medical, telecom, and power management applications. It has the capability to provide power outputs up to 48V at 515W with an efficiency of 94%. This makes it a good choice for medical and telecom equipment, automotive, and industrial electronics.

Working Principle

The PTK25-D48-T515 utilizes a buck converter topology, which is a type of switching regulator that steps down the input voltage. The converter consists of a high-side switch, a low-side switch, an inductor, and a voltage divider circuit. In the first half of the switching cycle, the high-side switch turns on and a current flows through the inductor, causing the inductor\'s magnetic field to build. As the magnetic field builds, it stores energy. In the second half of the cycle, the high-side switch turns off and the low-side switch turns on. This causes the stored energy to release, and the current flows through the load, creating a lower output voltage. The switching frequency and the duty cycle of the switches will determine the output voltage and current of the converter.The PTK25-D48-T515 also includes overcurrent protection, undervoltage lockout, input voltage surge protection, thermal protection, and input current foldback protection. This makes it suitable for applications with widely variable input voltages and overloads.

Advantages

The PTK25-D48-T515 has several advantages. It has high efficiency, up to 94%, and a wide input voltage range, which makes it suitable for applications with widely variable input voltages. It also provides a wide output current range and a wide temperature range, and it is able to operate over a range of temperatures from -40°C to 85°C. The device is also compatible with switching frequencies from 80 kHz to 500 kHz, allowing for more efficient power conversion at higher frequencies.

Conclusion

The PTK25-D48-T515 is a highly efficient, modular, high-quality DC-to-DC converter suitable for industrial, medical, telecom, and power management applications. It provides a wide input voltage range, a wide temperature range, and a wide output current range. It also provides overcurrent protection, undervoltage lockout, input voltage surge protection, and input current foldback protection. It is able to operate over a range of frequencies from 80 kHz to 500 kHz, making it suitable for higher efficiency applications.

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