S7AH-12F1800

Series:	x7AH-12F
Packaging:	Tube
Part Status:	Obsolete
Type:	Non-Isolated PoL Module
Number of Outputs:	1
Voltage - Input (Min):	3V
Voltage - Input (Max):	5.5V
Voltage - Output 1:	1.8V
Voltage - Output 2:	--
Voltage - Output 3:	--
Current - Output (Max):	12A
Power (Watts):	21W
Applications:	ITE (Commercial)
Features:	Remote On/Off, OCP, SCP, UVLO
Operating Temperature:	-40°C ~ 85°C
Efficiency:	87%
Mounting Type:	Surface Mount
Package / Case:	7-SMD Module
Size / Dimension:	0.78" L x 0.70" W x 0.32" H (19.7mm x 17.8mm x 8.1mm)
Control Features:	Enable, Active High

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DC DC Converters: S7AH-12F1800 Application Field and Working Principle

DC/DC converters are devices that act as converters, transferring power from one circuit to another using direct current. These devices are used in a variety of applications, ranging from telecommunications to automotive applications. The S7AH-12F1800 is a DC/DC converter manufactured by Renesas Electronics, and it is designed for use in industrial applications and in information and communication technology (ICT) systems. This article provides an overview of the application field and working principle of the S7AH-12F1800.The S7AH-12F1800 is a DC/DC converter that provides a high level of performance and reliability in various different application fields. It is suitable for use in industrial applications such as temperature control, machine tools, and automation, as well as in ICT systems such as personal computers and database servers. The device features a wide input operating voltage range of 6 to 28 V, and it can provide an isolated output voltage of 12 V. It also has a low-ripple design that minimizes power noise, along with protection against input and output overvoltage, short circuit, and overload conditions. Additionally, the device is RoHS-compliant and has a high efficiency of up to 90%.The S7AH-12F1800 utilizes a combination of flyback and forward-converter topologies to provide a high level of efficiency and reliability. The flyback topology is used for primary-side power conversion and transformation, while the forward-converter topology is used to provide output voltage regulation. On the primary side, a Pulse Width Modulation (PWM) oscillator controls the duty cycle of the switches in the flyback topology, providing regulation of the input voltage. On the secondary side, the output voltage is regulated by a variable-frequency, frequency-modulated Pulse-Width Modulation (PWM) controller. This ensures a stable output voltage over changing loads.In addition to the wide operating voltage range and high efficiency, the S7AH-12F1800 offers several other important features that make it suitable for use in a variety of applications. It has an integrated general-purpose input/output (GPIO) interface that enables additional functions such as system management and monitoring, and it also includes an internal PMOSFET switch for enabling/disabling the output. Other features include a wide range of operating temperatures (-40 to +105 ºC) and an integrated over-temperature protection circuit that senses die temperature and shuts down the device in the event of an over-temperature condition.The S7AH-12F1800 is an effective and reliable DC/DC converter for a wide range of applications, such as those found in industrial and ICT systems. Its combination of high efficiency, wide operating voltage range, and integration of additional features make it suitable for a variety of different uses. Through an understanding of the application field and working principle of the S7AH-12F1800, engineers and technicians can make informed decisions when selecting the right DC/DC converter for their specific project.

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