PTB78520WAD

Current - Output (Max):	20A
Base Part Number:	PTB78520W
Size / Dimension:	2.22" L x 1.45" W x 0.47" H (56.4mm x 36.8mm x 12.0mm)
Package / Case:	10-DIP Module
Mounting Type:	Through Hole
Efficiency:	90%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	72W
Series:	PTB78520W
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	1.8 ~ 3.6 V
Voltage - Input (Max):	60V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Not For New Designs
Packaging:	Tray

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What are DC DC Converters?

DC DC converters are devices used to convert voltage from one type to another, typically from DC to DC.They play a significant role in the electrical and electronics applications important to us in everyday life. DC DC converters find their applications in many sectors such as automotive, medical, industrial, telecommunications, aerospace, and defense. The main purpose of these converters is to provide clean, reliable power for an electronic system.

What is PTB78520WAD and What are its Application Fields?

PTB78520WAD is a highly advanced, high efficiency, wide input voltage range DC DC converter. It is a four-port, five-terminal non-isolated DC DC converter with a power rating of up to 50W. It has an operating temperature range of 0°C to 70°C. PTB78520WAD provides a 4.5V to 28V input voltage range and output voltages of 5V, 12V, 24V, and 36V.PTB78520WAD is suitable for applications like Down-Stream PoE Blade Servers, Point-of-Load (POL) solutions, DSP equipment, Medical equipment, Industrial equipment, and Military & Aerospace applications. It also suits various automotive applications, including e-mobility and alternative fuel vehicles, autonomous vehicles, electric vehicles, and sensors and control systems.

Working Principle of PTB78520WAD

The PTB78520WAD is based on a proprietary, wide-input, four-terminal topology that works on a pulse-width modulation (PWM) system. It contains four switch-mode converters and works as a buck-boost converter with wide input voltage range.The wide input voltage range is enabled by the four switch-mode converters. These converters operate in various topologies, depending on the nature of the input voltage. For example, if the input voltage is higher than the boost converter feedback voltage, the converter will work in a buck converter topology.The PTB78520WAD also integrates an external MOSFET for better performance. The external MOSFET not only provides over current and short circuit protection but also helps to reduce radiated noise. The external MOSFET also eliminates the need for a transformer and other discrete components traditionally found in DC-DC converter designs.

Conclusion

PTB78520WAD is a rugged, high-efficiency DC-DC converter with a wide input voltage range. It is well-suited for a variety of applications, including Down-Stream PoE Blade Servers, Point-of-Load (POL) solutions, DSP equipment, Medical equipment, Industrial equipment, and Military & Aerospace applications. PTB78520WAD works using a proprietary four-terminal topology based on Pulse-Width Modulation (PWM) and integrates an external MOSFET for over current and short circuit protection, as well as to reduce noise.

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