PT5045L

Voltage - Output 3:	--
Base Part Number:	PT5045
Size / Dimension:	--
Package / Case:	3-SMD Module
Mounting Type:	Surface Mount
Efficiency:	85%
Operating Temperature:	-20°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Current - Output (Max):	1.2A
Series:	PT5040
Voltage - Output 2:	--
Voltage - Output 1:	9V
Voltage - Input (Max):	8V
Voltage - Input (Min):	4.75V
Number of Outputs:	1
Type:	Non-Isolated PoL Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters: PT5045L application field and working principle

DC-DC converters are electronic circuits that convert a direct current (DC) input voltage into a constant level of output current. They are widely used in power electronic applications, such as automotive applications, aircrafts, satellites and telecommunication networks. DC-DC converters provide constant voltage or current to the load, without any need of additional components or external power source.The PT5045L is a high efficiency, step-up DC converter that provides a wide input voltage range, up to 46 V. This DC converter offers temperature protection, low output current ripple, and high efficiency. It can be used in many applications such as industrial systems, electric vehicles, and in telecommunication.The PT5045L operates through the use of two basic conversion principles, namely pulse width modulation (PWM) and step-up (boost) converter techniques. PWM is used in converting the input signal into a signal of constant frequency, but with variable duty cycle. The duty cycle is set according to the desired output voltage level. On the other hand, the step-up converter technique is used in converting the input signal into output voltage, which is higher than its input voltage.The basic working principle of the PT5045L is as follows. When the input voltage is applied, the IC performs PWM switching by using a copper-oxide rectifier and a series of transistors. The copper-oxide rectifier acts as a switching element, while the transistors are used to control the inductor current. When the signal is applied, the copper-oxide rectifier turns on and the transistors switch on and off, according to the PWM output, thus causing the inductor current to alternate between full-on and full-off cycles.This inductor current is used to create a magnetic field, whose energy is then transferred to the output as a result of the winding polarity. As this process continues, the output voltage of the converter rises. The output voltage is thus designed to be higher than the input voltage by the factor of the turns ratio of the transformer.The PT5045L has an integrated control circuitry built-in that provides logic control for the converter, and allows for contact protection, over temperature protection and over-voltage protection. The logic control circuit also allows for over current protection and soft start. The PT5045L is designed to reduce the size of the circuit, and it can be used in a wide range of applications such as power supplies, communication systems, and railway traction systems.In conclusion, the PT5045L is a high efficiency, step-up DC converter that provides a wide input voltage range up to 46 V. It operates by combining both PWM and step-up converter techniques, by using a copper-oxide rectifier and a series of transistors. The integrated control circuitry built-in the converter provides logic control for the converter, and allows for contact protection, over temperature protection and over-voltage protection. The PT5045L can be used in a variety of industrial applications, electric vehicles, and in telecommunication.

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