SRAH-05A1A0R

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DC DC Converters

DC-DC converters are key components in modern power electronics, used to convert a higher source voltage to a lower output voltage. They are used extensively throughout the commercial and consumer markets, including in the medical, automotive, and telecommunication sectors.

The SRAH-05A1A0R is a high-efficiency, non-isolated constant voltage-constant current (CV-CC) power converter designed for cost-efficient and reliable low voltage DC power that meets stringent safety and efficiency requirements. It has a wide input voltage range and can operate over both 4:1 and 60:1 dimming ratios. The product has embedded MOSFETs, an active clamp, and a highly integrated control circuitry for superior system level performance. Additionally, the converter’s logic-based inputs enable simple and reliable solution architectures.

Application Fields & Working Principle

The SRAH-05A1A0R is suitable for a variety of applications such as lighting, automotive, consumer, and industrial. It offers reliable, efficient, and cost-effective operation for several general-purpose requirements including high input voltage levels, over-temperature protection, short-circuit protection, dimming capability, and low harmonic distortion.

The SRAH-05A1A0R works on the principle of pulse width modulation (PWM) with integrated synchronous rectification. Output voltage and current are regulated with a constant-voltage, constant-current (CV-CC) mode of control, and the converter is current-mode controlled.

The integrated output voltage and current regulation allows constant voltage and current over a wide range of input voltages and load conditions. This provides improved efficiency since the power losses in the output stage remain low over a wide operating range. Moreover, the product\'s soft start feature helps reduce inrush current.

The active clamp feature offers a number of benefits such as improved efficiency over a wide range of loads, enhanced thermal bonding between the primary and secondary, and minimized EMI contamination. Additionally, the product supports dimming control through an Adaptive Brightness Control (ABC) technique. This provides dimmable LED lights with a maximum dimming ratio of 60:1.

The SRAH-05A1A0R also has a wide input voltage range, making it ideal for a variety of applications. The device is also very flexible in terms of output current range, making it suitable for a wide variety of applications requiring constant current or constant voltage conversion.

In short, the SRAH-05A1A0R is a cost-effective, highly efficient non-isolated DC-DC converter suitable for a wide range of applications. With its high levels of integration, it is one of the best solutions available for achieving high efficiency levels and reliable performance in low voltage DC-DC applications.

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