IW4809SA

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DC-DC converters are a type of power electronics devices that are used to convert an input voltage from one dc source to a different dc voltage output. The IW4809SA is a DC-DC converter designed for applications in the aerospace and military industries that require a highly efficient, reliable, and small form factor power supply. This converter module offers a wide input voltage range from 6.5 to 36VDC and is able to generate a constant voltage output with a wide range of selectable voltages (3.3V, 5V, 12V, 15V, 24V). It has a very high efficiency of up to 88% and features an adjustable constant current mode which provides a stable current output over a wide range of load conditions. The converter is designed to operate at ambient temperatures up to 105°C with derating.

The working principle of the IW4809SA is based on a high-frequency pulse width modulation (PWM) topology. The input voltage is first converted into a high frequency current waveform using an internal MOSFET switch. The converted voltage is then fed into a step-up voltage transformer which increases it to the desired output voltage. The transformer is then stepped down using an internal MOSFET to the proper output voltage level. Finally, the output voltage is monitored and regulated by an internal comparator circuit which adjusts the PWM duty cycle to keep the output voltage constant. The module is also equipped with over-temperature and over-voltage protection which helps to ensure safe operation and protect the load from unexpected surges.

The IW4809SA is an ideal choice for aerospace and military applications where a reliable, compact and highly efficient power supply is required. It has a wide range of input voltage and adjustable output current capabilities making it suitable for a variety of applications. The high efficiency of up to 88% helps to reduce power losses and increase system efficiency. It also offers additional features such as over-temperature and over-voltage protection which provide additional levels of safety and reliability. The IW4809SA is well suited for applications such as avionics, instrumentation, military, space, or any other power supply requirements which demand high levels of performance and reliability.

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