FSA150018A

Current - Output (Max):	8.3A
Approvals:	CB, CE
Minimum Load Required:	No
Size / Dimension:	5.00" L x 3.00" W x 1.22" H (127.0mm x 76.2mm x 30.9mm)
Mounting Type:	Chassis Mount
Features:	Universal Input
Operating Temperature:	0°C ~ 70°C
Efficiency:	91%
Applications:	ITE (Commercial)
Power (Watts):	150W (180W Forced Air)
Series:	FSA 150
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	18V
Voltage - Input:	85 ~ 264 VAC
Number of Outputs:	1
Type:	Open Frame
Part Status:	Active

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AC DC Converters

The FSA150018A is an AC/DC converter developed by Texas Instruments, designed to regulate the voltage and current of the input AC power supply. It is typically used in applications requiring high power density and low cost, such as automotive, audio, and consumer electronic systems.The FSA150018A consists of two parts: an AC side, which is responsible for converting alternating current to direct current, and a DC side, which is responsible for ensuring that the output voltage and current stay within an acceptable range.The AC side begins with bridge rectification, which converts the alternating current (AC) input into direct current (DC). This DC is then sent to the regulator, where it is converted to the exact voltage and current requested by the output application. This process is also known as buck-boost regulation.In buck-boost regulation, the AC/DC converter monitors the input and output voltages and adjusts the voltage accordingly. If the output voltage is higher than the desired value, the AC/DC converter steps down the voltage on the output. Conversely, if the output voltage is lower than the desired value, the AC/DC converter steps up the voltage on the output. This process is performed by a series of switches, which are controlled by an on-board microcontroller.The DC side of the FSA150018A consists of several components and protection features. First, it includes an inductor to filter out noise and other disturbances. Then, two high-frequency MOSFET switches alternately route current to the output. The switches are controlled by a gate driver which also includes protective features such as current-sense amplifiers for over-current protection, a Status PWM for thermal protection, and a Soft Start feature for inrush current limitation.In addition to these features, the FSA150018A also includes a comprehensive set of enable and output pins for externally controlling the converter. The output pins monitor the converter’s elements and can be used to communicate various details, such as voltage, current, temperature, and error codes. This enables the user to monitor and control the converter remotely. In conclusion, the FSA150018A is an effective and reliable AC/DC converter, designed with high power density and low cost in mind. Its two main components, the AC side and the DC side, work together to ensure a stable output voltage and current, and its comprehensive set of external pins help to monitor and control the converter’s elements and performance.

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