MAX16059ATT30+

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Power management integrated circuits (PMICs) are widely used in electronic circuits to provide reliable power management and maximum energy efficiency. PMICs are used in a variety of applications, from embedded systems and mobile devices to PCs and servers. Among the PMICs, supervisors are widely used in industrial and automotive applications due to their high reliability and accuracy. The MAX16059ATT30+ is a high-side automotive supervisor that monitors and maintains power supply voltages in an automotive system.

Overview of MAX16059ATT30+

The MAX16059ATT30+ is a single-channel overvoltage protection supervisor designed to detect and monitor industrial system power rails and actuators. The device integrates several features, including integrated voltage monitor and programmable reset timer with a wide operating voltage range up to 60V. It features an adjustable overvoltage threshold with a low 0.5V hysteresis and selectable reset output active levels of 3V and 5V. Moreover, the MAX16059ATT30+ features an adjustable reset timeout period and a reset propagator circuit that helps reduce power glitches and reset contention in multiple system power rails. The device is available in the small-footprint 8-pin TSOT-23-8A and 8-pin uMAX packages.

Application of MAX16059ATT30+

The MAX16059ATT30+ is ideally suited for monitoring and protecting industrial systems from overvoltage and reverse voltage fault conditions. The device is commonly used as a power rail supervisor in automotive systems and in industrial systems ranging from simple embedded control systems to complex PC and server control systems. In automotive applications, the MAX16059ATT30+ can be used to monitor the voltage of lead-acid batteries, rechargeable batteries or other sorts of energy sources.

The device is also particularly suitable for motor control circuits, where accurate voltage sensing and overvoltage protection are important. The device can be used to detect and protect power supplies from high-voltage faults, such as a failed power supply or a short circuit. In addition, the MAX16059ATT30+ can be used in automotive systems to detect and protect against reverse voltage faults. The integrated programmable reset timer can be set to a specific time duration to reset the system when a fault condition is detected.

Working Principle of MAX16059ATT30+

The MAX16059ATT30+ is a high-side supervisor, meaning that it monitors and controls the voltage on the positive side of the power supply. The power rail voltage is compared to an internally set reference voltage to detect overvoltage and reverse voltage conditions. If the input voltage exceeds the overvoltage threshold, the device will activate the output signal and cause the system to reset or shut down. The reset timer starts automatically, and when it times out, the power rail is reset and the system is allowed to resume normal operation.

The MAX16059ATT30+ also features an adjustable reset timer, which can be programmed to a specific time period to reset the system when a fault condition is detected. The adjustable frequency allows the user to determine the amount of time for a system reset when a voltage fault condition is detected. The reset delay can be adjusted to allow the system to reset without overloading the power supply.

In addition, the MAX16059ATT30+ is equipped with a reset propagator circuit, which helps reduce power glitches and reset contention in multiple system power rails. This feature also helps reduce the risk of false triggers due to external disturbances. Furthermore, the device features an integrated watchdog timer with adjustable fall and rise times to monitor the voltage input. If the voltage remains outside of the Voltage Monitor Window, the device will generate an interrupt signal.

Conclusion

The MAX16059ATT30+ is a high-side supervisor designed to detect and protect against overvoltage and reverse voltage fault conditions in automotive and industrial systems. The device features an adjustable overvoltage threshold, adjustable reset timeout period and reset propagator circuit, and an integrated watchdog timer. The MAX16059ATT30+ is well suited for use in power management applications requiring precision voltage monitoring and accurate overvoltage protection.

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