CHL8225G-02CRT

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CHL8225G-02CRT Application Field and Working Principle

CHL8225G-02CRT is a high-performance switching voltage regulator IC from Texas Instruments, specifically designed for DC/DC automotive power systems. It is an advanced buck four channel integrated switch mode regulator, designed to provide highly efficient, clean and noise-free power conversion. The chip can be used to supply a wide range of automotive applications, ranging from 48V to 5V, to battery-powered vehicles.

Application Field

The CHL8225G-02CRT switching voltage regulator can find numerous applications in automotive power systems where efficiency and power delivery is of utmost importance. Its wide input range of 4.75V to 50V makes it especially suitable for battery-powered applications, where the source voltage may be low in certain conditions. The chip can also be used in a variety of conditions, such as in automotive systems with high vibration and/or temperatures of up to 150°C.

The CHL8225G-02CRT can be used to supply power to various automotive components such as central processors, dashboard components, infotainment systems and low-side switchings. It can also be used in 48V automotive battery systems, as well as in various industrial and medical applications.

Working Principle

The CHL8225G-02CRT is a switching voltage regulator IC, with four channels each engineered for different power output ratings. Each channel includes an integrated power MOSFET and a separate controller block. The primary function of the chip is to control the voltage drifts initiated by the system load changes. The MOSFETs are responsible for controlling the current flow through the chip’s power output, which is determined by the controller and the power conversion details.

The chip utilizes a unique algorithm, based on Pulse Width Modulation, that allows the MOSFETs to control the current flow accurately regardless of the load fluctuation. When the load increases, the MOSFETs increase their conductance. When the load decreases, they reduce their conductance. As a result, the system’s power output remains constant and the chip operates efficiently.

The controller block of the chip monitors the input voltage and current of the chip, in order to regulate the power output of the system accurately. The chip is also designed to handle load faults and over-current conditions, thus ensuring the safety of the underlying system and its components.

Conclusion

The CHL8225G-02CRT is a versatile switching voltage regulator IC from Texas Instruments that is specifically designed for DC/DC automotive power systems. Its wide input voltage range of 4.75V to 50V and regulation algorithm based on PWM make it ideally suited for supplying power to a variety of automotive components and industrial/medical applications. With its efficient, clean and noise-free power conversion, the chip is capable of providing reliable and stable power in the most demanding automotive conditions.

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