BA9741FS-E2

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BA9741FS-E2 is a DC DC switching controller. It is a highly integrated device manufactured by Rohm, a leading semiconductor manufacturer. The device is designed to provide efficient power conversion and protection of the load from current and voltage fluctuations. It is suitable for a wide range of applications such as automotive, industrial, white goods, and telecommunications.

Features

BA9741FS-E2 offers a variety of features to meet different application requirements. It features an integrated high-side MOSFET control block, an integrated overvoltage protection circuit, an adjustable 0.8V voltage reference, an adjustable output voltage and current limiter, an adjustable soft/hard start/stop time and an adjustable thermal shutdown. All these features make the device suitable for use in applications such as DC-DC converters, power supplies, and power management systems.

Application Field

BA9741FS-E2 can be used in different types of portable and industrial applications such as cellular phones, tablets, TV sets, home audio systems, DC-DC converters, power supplies, and power management systems. The device can be used in automotive systems, particularly in driver assistance and infotainment systems.

Working Principle

The device is based on a two-stage power conversion architecture consisting of an input pre-regulation stage and an output voltage adjustment stage. The input pre-regulation stage works by regulating the input voltage to a constant level. This allows the device to maintain a constant voltage level under different input voltage and temperature conditions. The output voltage adjustment stage adjusts the output voltage level according to the required output level and current load. In order to regulate the output voltage level accurately and efficiently, the system utilizes a synchronous rectification technique to minimize power loss while regulating the output voltage level.

Conclusion

BA9741FS-E2 is a DC DC switching controller that has a wide range of applications due to its high integration and efficient power conversion capabilities. The device offers an integrated high-side MOSFET control block, an integrated overvoltage protection circuit, an adjustable 0.8V voltage reference, an adjustable output voltage and current limiters, an adjustable soft/hard start/stop time and an adjustable thermal shutdown. This makes the device suitable for use in different types of portable and industrial applications such as cellular phones, tablets, TV sets, home audio systems, DC-DC converters, power supplies and power management systems.

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