ISL6526CR

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

ISL6526CR Application Field and Working Principle

The ISL6526CR is a DC/DC switching controller designed to control the current in a buck converter power supply, enabling it to deliver greater performance with high power output while forming a complete power management integrated circuit (PMIC). This controller is a combination of power MOSFET gate driver and current control circuitry, providing a single-stage solution for efficient power conversion. The ISL6526CR is suitable for a wide range of applications, such as a charger for laptop adapters, video cards, and routers, as well as for powering mobile phones, embedded systems, and portable gadgets.

Features

The ISL6526CR offers a wide array of features, unlike anything else in the market. It features a low start-up current along with an adjustable current limit and thermal protection. It also provides tight output voltage regulation, wide alternation rate window, and adaptive over-current protection. Other features include under-voltage lockout (UVLO), over-temperature protection, shockless load transients, and programmable soft-start and frequency synchronisation.

Working Principle

The working principle of the ISL6526CR is relatively simple and straightforward, but highly effective. It functions as a complete current controller and driver for Buck Mode converters. The current control loop reacts to changes in the sense voltage by altering the ON time of the power MOSFET gate to maintain the output voltage. It also provides over-current protection and significantly limits edge rates for soft switching, enabling a higher efficiency power supply.

The ISL6526CR starts operating when the input voltage reaches the UVLO level. It then turns ON the MOSFET gate, allowing current flow, which varies according to the response of the current control loop. It also activates the current limit to keep the output current within safe limits and supports high-efficiency operation, current sharing, and multi-phase synchronisation.

Applications

The ISL6526CR is usually deployed as a complete power management integrated circuit (PMIC) solution with buck converter power supplies. It is suited to applications in consumer electronics and computers, such as laptop adapters, video cards, routers, and mobile phones, as well as for powering embedded systems, portable gadgets, and automotive electronics.

It is particularly useful for applications where high power operation, high efficiency, and low noise are requirements, such as in notebook adapters, digital TVs and video cards. It is also useful for powering any type of embedded system and for providing current sharing and synchronisation in multiphase converters.

Conclusion

The ISL6526CR is a DC/DC switching controller designed to control the current of a buck converter power supply, while forming a complete power management integrated circuit (PMIC) with high power output and high performance. It provides a range of features, such as current limiting, over-temperature protection, and under-voltage lockout, to ensure safety and reliability. Its working principle is simple yet highly efficient and it can be used in a wide range of applications, such as laptop adapters, video cards, routers, mobile phones, and embedded systems.

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