M57140-01

Current - Output (Max):	100mA, 30mA, 30mA
Size / Dimension:	--
Package / Case:	14-DIP Module
Mounting Type:	Through Hole
Efficiency:	70%
Operating Temperature:	-10°C ~ 75°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	2.5kV
Power (Watts):	3W
Series:	--
Voltage - Output 3:	15V
Voltage - Output 2:	15V
Voltage - Output 1:	15V
Voltage - Input (Max):	22V
Voltage - Input (Min):	18V
Number of Outputs:	4
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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DC DC Converters

DC-DC converters are essential devices for a variety of applications, in which the purpose is to convert a DC power input into a regulated DC output voltage or current. This is often done by steps or processes of converting the voltage or current, such as rectification, bucking, boost, and inverting. Popular DC-DC converters include the M57140-01, which is an integrated DC-DC converter module designed for use as an isolated DC-DC power supply, and offers high efficiency with a wide input voltage range of 36-75V.

M57140-01 Application Field and Working Principle

The M57140-01 is a step-up DC-DC converter that has been designed to efficiently convert a DC input voltage from 36 to 75V into a regulated DC output voltage of 12V. The output voltage can be adjusted from 10 to 15V with the internal voltage adjustment pin. This converter is designed for applications such as power supplies, battery chargers, voltage regulators, and other power conversion applications.The M57140-01 DC-DC converter operates on the principle of an inductor energy store. When the switch is turned on, the inductor stores energy and the voltage begins to increase until the inductor reaches a maximum current, which results in a peak voltage value. When the switch is turned off, this stored energy is released and the voltage decreases until the inductor reaches zero current. A feedback loop circuit detects the voltage level of the output and controls the switching of the inductor, and thus ensures the output voltage remains constant.To achieve the desired output voltage level, two components are used: a transformer and a semiconductor switch. The transformer steps up the input voltage to the required output voltage. The semiconductor switch is then used to control the flow of input current to the transformer. When the switch is off, no current flows through the transformer primary coil. When the switch is on, the current flows in the primary coil, which induces a voltage which is stepped up to the required output voltage level. The M57140-01 also incorporates internal various protection features, such as overvoltage protection, thermal shutdown, and overcurrent protection, to ensure safe operation. It also offers high efficiency, with a maximum efficiency of 91%. The efficiency of these converters can be further improved by using inductor elements with higher saturation current ratings for increased power handling.

Conclusion

The M57140-01 DC-DC converter is a popular device used for a variety of applications, as it is highly efficient, offers a wide input voltage range, and has various protection features. It is designed for the purpose of converting a DC power input of 36-75V into a regulated 12V output voltage, operating on the principle of an inductor energy store. With its various features, the M57140-01 is an ideal choice for applications such as power supplies, battery chargers, voltage regulators, and other power conversion applications.

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