BCM6123TD1E5135T00

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DC-DC Converters

A DC-DC converter is an electronic power switching device used to change the voltage of DC electricity used by electrical and electronic equipment. It is commonly used to convert a higher voltage input (such as 12V) into a lower voltage output (such as 5V). There are two main types of DC-DC converter: linear and switching. The BCM6123TD1E5135T00 is a switching DC-DC converter specifically designed for the automotive industry.

BCM6123TD1E5135T00 Application Field

The BCM6123TD1E5135T00 switching DC-DC converter is designed for automotive applications, specializing in on-board charging of accessory batteries. It is most commonly used to efficiently charge 12V or 24V lead-acid batteries, such as those found in cars, motorcycles, boats, recreational vehicles, and commercial vehicles. This low-cost, high reliability converter is also capable of providing up to 15A (peak) output current.

BCM6123TD1E5135T00 Working Principle

The BCM6123TD1E5135T00 operates on synchronous rectification and fixed frequency pulse width modulation (PWM) control. This circuit uses two parallel devices,– a high-side MOSFET and a low-side MOSFET. These two transistors are controlled by the PWM signal and act together to switch the current on and off. As the current switches on and off, an alternating voltage is generated, which is then smoothed and filtered to produce a steady output voltage.

The synchronous rectifier circuit is designed to be highly efficient, operating at approximately 96% efficiency. This reduces heat dissipation and improves reliability compared to other types of DC-DC converters. In addition, the BCM6123TD1E5135T00 is designed to operate in a wide range of ambient temperatures (from -40°C to +105°C) with no derating.

Conclusion

The BCM6123TD1E5135T00 is a high efficiency, low-cost switching DC-DC converter specifically designed for automotive applications. It is capable of delivering up to 15A(peak) output current and operates at up to 96% efficiency. It has a wide operating temperature range (-40°C to +105°C) and is widely used in automotive battery charging applications.

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