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PMIC - Voltage Regulators - Special Purpose

Introduction to ISL6263BHRZ

The ISL6263BHRZ is a highly-integrated power supply and control solution designed for a variety of applications. It is designed to control and monitor multiple loads or power points with high accuracy. The device supports operating voltages from 36V to 100V, and provides a complete current and voltage sensing solution with four precision current monitor inputs and two voltage monitor rails. The device integrates five low-side power switches, which can be used to control up to 5 loads independently or in a variety of combinations. The device also features programmable voltage and current limit settings, thermal shutdown control and system current sense. The ISL6263BHRZ is available in a 16-pin HTSSOP package.

Applications

The ISL6263BHRZ is a highly-integrated multi-load power solution for applications such as industrial and medical. It is suitable for use in motor control systems, solar energy systems, medical equipment and automotive applications. It is also suited for use in distributed power systems, data centers and consumer applications. Additionally, the ISL6263BHRZ can be used in consumer and commercial applications, such as in the home and automotive markets, in consumer electronics, consumer appliances and industrial HVAC systems.

Working Principle

The ISL6263BHRZ comprises of five low-side power MOSFET switches, which can be used to control as many as five different power features independently or in a variety of combinations. A programmable current and voltage limit setting, a current sense amplifier and system level thermal shutdown are also incorporated in the device for added safety and protection. The device also integrates four precision current monitor inputs and two voltage monitor rails. The current monitor inputs accurately measure the current flowing through the power MOSFET, allowing the device to detect a number of fault conditions. This, combined with the voltage regulation, provides a highly accurate and reliable power supply control solution.

In order to control the power MOSFET switches, the ISL6263BHRZ utilizes three signal pins: a control pin, a common-mode voltage pin, and a signal ground pin. The control pin is used to activate or deactivate each power MOSFET switch according to user-defined settings. The common-mode voltage pin takes a voltage reference, typically an analog voltage, to adjust the power MOSFET thresholds. The signal ground pin is connected to the reference return and allows the current monitor inputs to detect any potential faults.

The ISL6263BHRZ also incorporated a 10-bit DAC, which can be programmed to control the current and voltage limits for each of the power points, protecting against overcurrent and overvoltage fault conditions. Additionally, the device has adjustable safety thresholds for voltage, current and temperature. The device also has an internal logic that monitors the system temperature and shuts down the power channels if the temperature exceeds a certain limit.

Conclusion

The ISL6263BHRZ is an integrated power solution designed for a wide range of applications. It features high accuracy current and voltage sensing solutions with four precision current monitor inputs and two voltage monitor rails. It also incorporates five low-side power switches, which can be used to control up to five loads individually. Additionally, the device features programmable current and voltage limit settings, thermal shutdown control and system current sense. The ISL6263BHRZ is available in a 16-pin HTSSOP package and is suitable for use in motor control systems, solar energy systems, medical equipment, automotive applications and more.

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