R2D12-2424/HP

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DC-DC converters are ubiquitous in the design of modern electronics circuits. The device typically makes use of an oscillating circuit to convert an input voltage from a DC source to a different output voltage. The R2D12-2424/HP is a high performance, regulated DC-DC converter from Renesas Electronics. It is a high power, integrated DC-DC converter incorporating both a synchronous rectification buck regulator and a two-phase non-switching flyback regulator in a single device.

Application Field

The R2D12-2424/HP is primarily designed for use in automotive and industrial applications, where high efficiency, power density and reliability are paramount. It is capable of supporting both high current, low output voltage (5~48V) buck outputs, as well as multiple low current (5~8V) flyback outputs. This makes it suitable for applications where both low loss and low voltage are important considerations. For instance, the R2D12-2424/HP can be used as the primary DC-DC converter in electric cars, optimizing the power distribution between the main battery pack and daughter boards. It is also optimal for powering multiple low voltage boards from a single higher voltage source, such as powering multiple low voltage gate drivers on a single board.

Working Principle

The R2D12-2424/HP is a highly efficient, regulated DC-DC converter. It is a buck-boost device, meaning it can convert between a higher input voltage and a lower output voltage. In this case, the input voltage can range from 6~56V, and the output voltage can range from 5~48V. The device features excellent efficiency due to its synchronous rectification buck regulator and two-phase non-switching flyback regulator, which together provide a switching frequency of up to 1MHz. The high efficiency of the device results in lowered power losses and improved thermal performance. The device also features an onboard protection system to protect against over-voltage, over-current, and short circuit conditions. It also has an integrated current sense mechanism to further improve efficiency.

To ensure proper operation and protect against damage, the R2D12-2424/HP requires a strictly regulated input voltage, and should be designed in with reliable thermal and electrical management. The device can operate in a temperature range of -40°C ~ 125°C, but the datasheet should be consulted for more details.

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