ISL6146DFRZ-T7A

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ISL6146DFRZ-T7A devices are part of a product portfolio of Analog Devices, Inc. containing High Efficiency, High Voltage DC/DC Power Management. This specific device is a PMIC – OR Controllers, Ideal Diodes, targeting the Automotive industry.ISL6146DFRZ-T7A devices are designed to offer the highest level of efficiency and provide the advanced protection scheme to ensure the safety of your automotive application while providing the perfect combination of power and protection.

The application field of ISL6146DFRZ-T7A devices encompasses a wide range of DC/DC Converters up to 48V input and High Voltage Buck applications, such as BEV, HEV and Battery Management Systems. The ISL6146DFRZ-T7A feature low-On-resistance ideal diodes to ensure the highest efficiency while providing the robust protection against short-circuit, over-voltage and reverse current. The comprehensive protection scheme and advanced diagnostics allow for continuous monitoring of the system health.

The ISL6146DFRZ-T7A also feature a low-quiescent current to save power and maximize battery life. The integrated digital control and LED indicator allow for the detection of system conditions with the built-in digital diagnostics and LED indicators which can be monitored through I2C. The device also integrates adjustable output voltage for efficiency optimization and maximum system flexibility.

The working principle of the ISL6146DFRZ-T7A is based on a low-On-resistance ideal diode and a low power MOSFET switch, combined in an efficient synchronous buck converter. When thevoltage output is less thanVref, the MOSFET is disabled and the ideal diode is activated, thus reducing quiescent current and leakage power to the lowest possible level. The switching cycles of the low power MOSFET switch result in a low-impedance path with a continuous feedback to ensure correct regulation and protection.

The ISL6146DFRZ-T7A also feature advanced protection features, enabled through the proprietary Analog Devices PARD technology. The PARD protection circuit incorporates over voltage, under voltage, protection and over current protection devices, as well as an accurate current limiter, to ensure continuous monitoring of the system health and power protection.

In conclusion, the ISL6146DFRZ-T7A device is an excellent power management solution for automotive applications, providing the highest efficiency and a robust protection scheme in a compact package. Its working principle is based on an efficient synchronous buck converter with an integrated low power MOSFET switch and an ideal diode for maximum efficiency and low quiescent current for better battery life. Moreover, the advanced protection features provided by the Analog Devices PARD technology add an extra layer of safety and reliability to the system.

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