MAX6420UK33+T

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The MAX6420UK33+T is a highly integrated ultra low quiescent current supervisor with features such as power-on reset, power-fail detection, dual-power-supply reset, reset open-drain output, power-good indicator, and system monitoring. It can be used in a wide range of applications to ensure system reliability. The MAX6420UK33+T is a PMIC (Power Management Integrated Circuit) which falls under the Supervisors category. In this article, we will discuss the application field and working principle of the MAX6420UK33+T.

The MAX6420UK33+T is primarily designed for providing system monitoring, reset, and power-fail protection in desktop, mobile, servers, or any type of AC/DC or board level power-supply architectures. It is ideal for applications such as cellular phones, digital TV, network devices, automotive electronics, and consumer electronics. Its ability to monitor 3.2V to 20V voltage ranges with ultra-low quiescent current makes it the perfect choice for high-accuracy, low power consumption devices.

The MAX6420UK33+T integrates a highly accurate voltage comparator, a dual pin-selectable reset generator, an optional open-drain reset output, and a power-good indicator (PGOOD). The device is capable of monitoring multiple power-supply rails with separate ground connections. It has a fast overtemperature shutdown comparator input for monitoring thermal conditions. The MAX6420UK33+T also includes a power-fail detection block with interrupt output for controlling system operations.

The reset sequence of the MAX6420UK33+T is programmable. It offers both true and false polarity options for PGOOD, under-voltage lockout, and reset output. The device has two separate fail inputs which can be used to monitor dual power-supply rails. The optional open-drain reset output allows multiple MAX6420UK33+T devices to be cascaded. The device can also be used as a power-on reset, power-fail reset, safety-monitoring reset, or an SMBus reset.

The MAX6420UK33+T has a two-pin selectable reset frequency of 31kHz, 500kHz or 1MHz. The device is capable of driving loads of up to 60mA, so it can be used for resetting multiple devices. It is also capable of cutting off power supply in case of over-temperature or over-voltage conditions in order to protect the system from damage. It includes an oversizing capacitor for increased system stability, as well as an internal reset delay counter.

The MAX6420UK33+T combines highly accurate monitoring and reset functions with ultra-low power consumption, making it an excellent solution for high-accuracy, low-power applications. It is capable of providing reliable system reset, monitoring, and protection in a variety of applications. The device offers high accuracy, fast response time, and a wide voltage range, and is ideal for powering and protecting a variety of electronic devices.

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