MAX6414UK45+T

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Introduction

The MAX6414UK45+T, is the newest addition to the MAX family of Supervisors from Maxim Integrated, one of the leading suppliers of power management ICs. This IC is a compact, single-channel voltage supervisor with two supply sources that are designed to ensure orderly power-up and power-down of digital systems. It provides protection against over-voltage, under-voltage, and brown-out conditions, as well as protection against load current limit. Additionally, it is split supply compatible, and includes a wide variety of factory-programmed threshold settings for all types of applications.

Application Field

The MAX6414UK45+T has a wide variety of application fields thanks to its diverse feature set. It can be used in applications such as:

• Embedded Industrial Control Systems
• Automotive Battery Management Systems
• Consumer Electronics Systems
• Medical Devices
• Network Transceivers and Routers

In addition to these application areas, the MAX6414UK45+T can be used in any application where an orderly start-up and shut-down is required, or in any application where protection against over-voltage, under-voltage or brown-out events is desired. It is also often used in low-power, low-voltage applications where reliable power management is critical.

Working Principle

At the heart of the MAX6414UK45+T is a dual supply supervisor with two independent power supplies. The first supply is a continuous VDD supply that remains on at all times, and the second is a VDD DLY supply that is powered on after the VDD supply has been stabilized. When VDD DLY is powered on, a control signal is triggered that places the IC into its active-low reset state. In this active-low reset state, the output is held low and the IC will remain in this state until VDD falls below the programmed under-voltage threshold.

When the VDD supply rises above the programmed over-voltage threshold, the MAX6414UK45+T will transition to its active-high reset state. In this active-high reset state, the output is held high and the IC will remain in this state until the VDD falls below the programmed under-voltage threshold. Once VDD is stabilized, the output will transition to its normal state.

The MAX6414UK45+T also features a brown-out protection feature, which monitors the incoming supply voltage and ensures that it remains above the programming threshold. If the supply voltage falls too low, the IC will enter its active-low reset state and the output will be held low until the supply voltage is sufficiently stabilized.

The MAX6414UK45+T also includes a load current limit feature, which will limit the amount of current that can be drawn from the VDD and VDD DLY supplies. This prevents excessive current from damaging sensitive components, and is especially useful in applications that have large transient loads.

Conclusion

The MAX6414UK45+T is a compact, single-channel voltage supervisor with two supply sources that are designed to ensure orderly power-up and power-down of digital systems. It provides protection against over-voltage, under-voltage, and brown-out conditions, as well as protection against load current limit. Additionally, it is split supply compatible, and includes a wide variety of factory-programmed threshold settings for all types of applications. This makes it an ideal choice for a variety of applications across a wide range of industries.

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