ISL6740IBZ-T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

ISL6740IBZ-T Application Field and Working Principle

The ISL6740IBZ-T is an advanced high-quality direct current-to-direct current controller that offers significant efficiency improvements compared to similar DC/DC solutions. It\'s part of a new breed of power management integrated circuits (PMICs) and falls into the category of voltage regulators and DC/DC switching controllers.

Integrated Components

The ISL6740IBZ-T has a built-in slew coefficient, under-voltage lockout, soft-start, and current limits that allow for excellent protection against over-mCurrent and over-voltage conditions. Operating at frequencies of up to 2MHz, it can minimize external components, enabling higher power density, smaller solution footprint and lower system cost. Other features include provisions for external compensation and a fixed-frequency, current mode architecture for easy design.

Application Field

The ISL6740IBZ-T is suitable for a variety of applications, including powering cellular base stations and servers, as well as LED and LCD displays, PCs, and gaming systems.

Working Principle

The ISL6740IBZ-T functions as a DC/DC controller, providing a stable output voltage as dictated by a digital or analog voltage reference. When the input voltage and output voltage are the same, the controller switches off the output MOSFETs, reducing power consumption to its minimum level and providing optimal efficiency throughout a wide load range.

The ISL6740IBZ-T is equipped with an adjustable current limit feature that can be used to limit inrush currents at power-up as well as output overload current. In addition, the controller supports safe-start soft start and low-battery shutdown protection, both of which can be used to prevent unintentional operation of the device in extreme voltages or overload conditions.

The ISL6740IBZ-T features a fast transient response, allowing for quick and accurate output voltage changes in response to different load requirements. It also delivers superior noise immunity and is designed to meet the requirements of stringent noise sensitive applications.

As a controller, it requires an external MOSFETs, driving them on and off as necessary in response to changes in the output voltage. The MOSFETs are switched either in synchronous or diode mode. The MOSFETs operate in synchronous mode during low-load conditions, increasing efficiency and reducing output ripple. When the load increases, the controller switches to diode mode, providing reduced switching losses and a better power conversion efficiency.

Conclusion

The ISL6740IBZ-T is an advanced high-quality direct current-to-direct current controller that provides superior efficiency and is suitable for a variety of applications. It features a built-in slew coefficient, under-voltage lockout, soft-start, and current limits as well as provisions for external compensation and a fixed-frequency, current mode architecture for easy design.

The controller is equipped with an adjustable current limit feature for safe and efficient operation. It delivers superior noise immunity and fast transient response and features synchronous or diode operating modes for improved performance.

The specific data is subject to PDF, and the above content is for reference