MAX5906EEE+T

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The MAX5906EEE+T is an overvoltage protection PMIC - Hot Swap Controllers intended for non-isolated, low-power DC/DC power supplies. It offers an integrated overvoltage protection (OVP) circuit to protect against an external supply voltage (Vin) rising above a well-defined lower operating voltage limit, Vmax, thereby preventing system faults due to input overvoltage. The circuit also ensures the safe shutdown of loads and power supplies under voltage fault conditions. It features dual overvoltage comparators that enable the device to detect and react to input overvoltage conditions with fast response time.

The MAX5906EEE+T has a wide range of application fields, such as power supplies for portable electronics, LED drivers, wearable devices, and many more. The device\'s features make it an ideal choice for applications with limited power dissipation requirements, such as low-power DC/DC supplies and telecom applications.

The MAX5906EEE+T accepts inputs from 4.5V to 24V and offers operating temperature ranges up to -40℃ to +105℃. Its slew rate, on/off response time, and drift characteristics are optimized to maintain a precise switching point throughout the life of the product. The MAX5906EEE+T also features a power fail detection and lock out that prevents power cycling under fault conditions. The device also incorporates an integrated delay circuit which delays the power turn-on by 10ms, ensuring soft start-up of the system. It is also compliant with RoHS standards, making it environmentally friendly and cost effective.

The MAX5906EEE+T works by comparing the Vin voltage with an externally adjustable voltage reference, Vref, to detect an input overvoltage condition. If the Vin voltage rises above the Vref voltage limit, the device switches off the load and reduces inrush current. It then sends an output signal to notify the system of the voltage fault condition. The MAX5906EEE+T also offers an adjustable power fail delay timer and an adjustable reset timer. The Power fail delay timer can be adjusted to delay the power-off signal, allowing the system to continue working until the fault condition is evaluated, while the reset timer prevents re-powering the system too soon, thus preventing false starts.

The MAX5906EEE+T includes an integrated-circuit sense resistor to provide accurate voltage monitoring. This feature prevents voltage errors caused by temperature variation and current leakage. The device also features a wide range of protection features including Overvoltage, Undervoltage, Over-current, and Inrush Current Limit protection. The MAX5906EEE+T also features status pins that output a high voltage when the system is in an over-voltage condition.

In conclusion, the MAX5906EEE+T offers a reliable, robust and accurate overvoltage protection solution for a wide range of applications. Its low-power operation, adjustable response time, lockout re-powering feature, and integrated current sense resistor makes it an ideal choice for high-reliability applications. Thanks to its high integration and RoHS compliance, the MAX5906EEE+T is an efficient and cost-effective solution that can enhance the safety and performance of any system.

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