ISL6252HRZ

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The ISL6252HRZ is a highly efficient buck controller for automotive battery charging applications. It is a member of the ISL6252 family of products from Intersil, which also includes an adjustable voltage buck regulator, an adjustable current buck regulator, and an adjustable voltage/current buck regulator. The ISL6252HRZ is particularly suited for automotive applications due to its high level of integration and power efficiency. It includes features such as adjustable input and output voltage and current, over-voltage protection, over-voltage protection, over-temperature protection, reverse-current protection, and short-circuit protection.

The ISL6252HRZ is a buck controller that uses a current-mode PWN boost controller to regulate the output of a battery charger. It is designed to drive synchronous buck regulators and allows a wide range of output voltage, from 6V to 25V, over a wide range of input voltages, from 4V to 28V. The output current can be adjustable from 0.25A to 5A. The ISL6252HRZ provides protection features to prevent over-current and over-voltage as well as short circuit and over-temperature conditions.

The ISL6252HRZ works by controlling the output of a buck regulator and is typically used to drive a synchronous buck regulator. It is designed to switch between two different output voltages, depending on the input voltage and the current threshold. The input voltage can be sensed either directly or through a resistor divider network, while the current threshold is set by an external resistor divider. This feature allows the ISL6252HRZ to provide a regulated output voltage and current, even when the input voltage is varying. In addition, the device can detect an over-current or an over-voltage condition and shut down the output before any damage occurs.

The ISL6252HRZ also incorporates several other features, such as synchronous rectification, adjustable switching frequency, phase compensation, and slew rate control. Synchronous rectification allows for improved efficiency as it eliminates the need for an extra diode in the regulator circuit. The adjustable switching frequency allows for increased efficiency over a wide range of output voltages, while the phase compensation circuitry helps to maintain optimal efficiency by compensating for input voltage and frequency changes. The device also has adjustable slew rate control, which limits the rate of rise and fall of the output voltage, and this helps to reduce EMI issues.

Overall, the ISL6252HRZ is a highly efficient and integrated buck controller for automotive battery charging applications. Its wide range of input and output voltages, adjustable current settings, protection features, and other features make it an ideal solution for automotive applications. The ISL6252HRZ is ideally suited for automotive applications that require a high level of power efficiency, reliability, and flexibility.

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