MAX6714AUB+

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Analog integrated circuits (ICs) are used in a wide variety of applications to help regulate, control, and monitor the power flow of a system. Power management ICs (PMICs) are among the most important of these components. PMICs are responsible for providing the appropriate current, voltage, or other signal required for a system to operate correctly.

PMICs come in a wide variety of types to cover different applications and specific needs. One of these is the MAX6714AUB+, a device specifically designed for supervisory functions. This PMIC is an efficient and reliable solution for monitoring 3.3V and 5V power supplies in applications such as microcontrollers, microprocessors, ASICs, and FPGAs.

Application Field

The MAX6714AUB+ is a comprehensive solution for monitoring 5V and 3.3V applications. It features a 3.3V voltage detector, a 3.3V voltage supervisor, and a 5V voltage supervisor. The integrated voltage detection and supervision circuits are designed with a reset/reset assertion-deassertion delay of 250ms, helping to ensure a reliable power-up sequence. In addition, a dedicated manual reset function is available for system test purposes.

The MAX6714AUB+ is ideal for use in systems where power-up sequencing and reliable shutdown operation is required. It is well suited for a wide range of applications such as low-power embedded systems, industrial automation systems, automotive systems, gateway systems, and more.

Working Principle

The MAX6714AUB+ is designed to detect and supervisor 3.3V and 5V power supplies. The device features two voltage-detection circuits with preset voltages of 3.3V and 5V. When the voltage from either supply dips below its preset level, the corresponding output pin (RST3# or RST5#) is automatically driven low, alerting the system to the voltage discrepancy. The voltage detection circuits also feature a delay circuit, ensuring that the output pulses are unaffected by transients that may be present on the supply.

The 5V and 3.3V voltage supervision circuits analyze the voltage from the corresponding supply and monitor its status. If the voltage falls below its preset level and stays below the threshold for more than 250ms, the output pin (VSR3# or VSR5#) is driven low to alert the system of a fault. The supervisor output pins can also be manually reset using the MR pin, allowing a system to resume operation after a fault condition.

In addition, the MAX6714AUB+has a low-current standby mode and an active-low reset output. The device is housed in a thermally efficient TSSOP package, making it ideal for applications that require the utmost reliability in operating temperature and noise immunity.

The MAX6714AUB+ is a versatile and reliable solution for monitoring 5V and 3.3V applications. Its hybrid architecture combines voltage-detection circuits and voltage supervisors, making it an effective and efficient tool for safeguarding power supplies. With its range of features, the MAX6714AUB+ is an ideal choice for monitoring 3.3V and 5V applications in any system.

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