MAX6865UK17D5L+T

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The MAX6865UK17D5L+T, which belongs to the category of PMIC - Supervisors, is a power supply supervisor and power-on reset (POR) controller. It features an advanced high-accuracy voltage monitoring and an undervoltage lockout (UVLO) function. The device includes an accurate 0.9V average temperate coefficient, with 0.01% accuracy and 0.1V hysteresis.

The MAX6865UK17D5L+T is a cost-effective integrated solution for system reset and reset and supervisor functions. It assists in protecting systems from power faults and ensuring orderly system startup and shutdown. It is designed to provide error-free operation in high voltage and temperature applications, enabling increased system reliability and safety.

The MAX6865UK17D5L+T has a wide supply voltage range, from 4.5V to 19.2V, making it suitable for a wide range of applications, such as automotive, industrial and consumer applications. The device also has an integrated soft start, adjustable overcurrent protection, and a temperature detection logic that allows for direct temperature measurements. It also has an enhanced watchdog timer that detects issues such as stuck low, reset, and missing signals. Additionally, it has an optional lockout pin for use with external control to prevent unauthorized powering on.

The MAX6865UK17D5L+T features an integrated 7-channel switching regulator for its power supply. The device has an operating temperature range of -40°c to +125°c, making it suitable for industrial and automotive applications. The chip also includes a power loss indicator, which indicates the presence of an overvoltage, an undervoltage, or an overtemperature condition. Additionally, the device is protected against reverse polarity, making it suitable for use in applications with a positive or negative ground references.

The working principle of the MAX6865UK17D5L+T is based on monitoring the supply voltage. The input voltage is monitored and compared against two internal thresholds, and the pin status is updated accordingly. If the input voltage drops below the pre-configured lower threshold, the device triggers a UVLO signal, indicating that the power supply is below the minimum required level. An assertion signal is sent out by the device to reset the system, while the user is warned through an LED indicator. If the input voltage exceeds the upper threshold voltage, the watchdog timer is triggered and a reset signal is sent out.

The MAX6865UK17D5L+T is suitable for a wide range of applications, such as automotive and industrial applications, which require robust power control. It can be used in power supply monitoring and protection, as well as system reset and supervisor functions. Also, due to its wide operating temperature range and reverse polarity protection feature, the device is a perfect choice for extreme applications.

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