ISL95829AIRTZ

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The ISL95829AIRTZ is a three-channel high side current switch, specially designed for load switching and power management in automotive applications. The device features an integrated low-side MOSFET with a maximum current handling capability of up to 5A and a TZ/DM voltage regulator with a dynamic range of 0.5V to 10V. The ISL95829AIRTZ also features programmable slew rates, current limit reporting, protected over-voltage, open load, and short circuit conditions.

The ISL95829AIRTZ\'s operating principle is based on a hysteretic current regulator scheme, which is capable of driving an external MOSFET and regulating current. The application of controlled current establishes a regulated output voltage at the load. This output voltage is continuously monitored and the MOSFET is activated to maintain a set output voltage between nominal and overvoltage levels. If the output voltage drops below the undervoltage threshold, the MOSFET is disabled and the output voltage is actively pulled into the undervoltage condition until the MOSFET is enabled again.

The ISL95829AIRTZ\'s intended application field is supplying power to automotive applications, such as engine control units, airbags, or body control modules, where reliable and high-speed loads switching and power management are required. The device can also be used in virtually any automotive application with high-frequency load switching requirements.

The ISL95829AIRTZ can be configured to provide load control up to its maximum current limit of 5A. When configured in an open-drain configuration, the device can switch up to 20A externally with near-zero switching losses. The device is programmed through an I2C bus, allowing for easy setup and adjustment without the need for additional components to set up the switching parameters. The versatility of the device further allows for adjustable current limits, timing delays, system monitoring capabilities, and more.

In summary, the ISL95829AIRTZ is a three-channel high side current switch that is specially designed for load switching and power management in automotive applications. It is capable of regulating current up to 5A, with an integrated dynamic range of 0.5V to 10V. The device is optimized for high-frequency load switching and programming is accomplished through an I2C bus. Thanks to its robustness and reliability, the ISL95829AIRTZ can be used with confidence in demanding automotive applications.

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