CHL8325A-31CRT

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The CHL8325A-31CRT is the latest product in a line of voltage regulators and DC to DC switching controllers developed by Suscon International. It is primarily intended to be used in applications where a high efficiency and low standby consumption is required, such as in automotive, solar power, and industrial power designs.

Overview

The CHL8325A-31CRT is designed to provide a high switching frequency and adjustable output current limiting for a viable solution for small-to-medium sized DC-DC converters. The regulator integrates a high-efficiency, high-frequency, synchronous buck converter with a 2.5A drive current gateway, current-mode control, programmable over-currentprotection, thermal protection, and adjustable operating frequency and output current-control levels.

The device features a wide 4.75V to 17V input voltage range and can provide an output voltage adjustable from 0.4V to 6.5V. The high switching frequency allows these devices to save considerable layout area and bias requirements which minimizes sizes of solutions. Current-mode topology supports fast and easy compensation, while its highly stable switching frequency (100kHz to 500kHz) makes it suitable for mid- to high-power low-noise applications.

Functionality

The CHL8325A-31CRT offers a variety of functionalities that make it ideal for use in such applications. The device includes a wide-range operating frequency output (100 kHz to 500 kHz) that can be adjusted via an external compensation network. Additionally, the current-mode architecture ensures fast transient response to varying load conditions. Other features include an adjustable current limit, programmable soft start time, and adjustable current-mode switching threshold for improved transient performance.

The device also features robust protection features including an over-current protection (OCP) with adjustable detect levels, thermal protection with a temperature-override function, and external power-good (PG) signal.The CHL8325A-31CRT also supports an optional embedded PWM dimming controller for improved lighting control.

Applications

The CHL8325A-31CRT is particularly well-suited for applications in automotive, solar power, and industrial power designs. The CHL8325A-31CRT provides the ability to produce high efficiency solutions with low standby consumption, and its small size makes it ideal for applications such as DC-DC converters, battery chargers, and automotive converters. The integrated protection features provide additional safety and improve performance, while the programmable components make it easy to customize the converter to fit the particular application.

The CHL8325A-31CRT is also suitable for many other applications, such as computer motherboards, portable electronics, and telecom systems. Its wide operating voltage, adjustable switching frequency, and adjustable current-mode output levels provide a high level of flexibility for designers.

Conclusion

The CHL8325A-31CRT is an excellent choice for power conversion solutions in a wide range of applications. It has been designed for use in a variety of applications and is capable of providing excellent efficiency with low standby consumption. The adjustable features, integrated protection, and programmable soft start time ensure optimal performance and safety. With the support of an optional embedded PWM dimming controller, the CHL8325A-31CRT offers advanced lighting control when needed.

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