MAX6375XR29+

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Power Management Integrated Circuits (PMICs) are an essential component in modern electronic systems. They are responsible for the delivery of power to different components of the system and control the operation of the system by monitoring the power supply levels. In this article we will look at the MAX6375XR29+ for applications in the Supervisors category of PMICs. We will look at the application field and the working principle of this PMIC.

MAX6375XR29+ is a voltage supervisor IC designed for portable power application, specifically for USB powered devices. This Supervisor provides an active-low reset signal when the voltage falls below a preset voltage threshold, and remains in reset until the input voltage rises above the rising threshold. This IC is available in two packages: TDFN, and SOT-23. It has an integrated voltage supervisor and buffered comparator, allowing the supervisor voltage to be adjusted over a wide range.

The MAX6375XR29+ comes with a four-terminal serial interface suitable for setting the supervisor voltage, along with a reset timeout delay, multiple power and reset pins, and a watchdog timer. It is available with a wide range of supervisor voltages from 0.5v to 4.7v and features a user-programmable reset timeout delay of 50ms to 1000ms.

The MAX6375XR29+ is used in many applications where power is critical, such as in portable medical devices, automotive systems, and consumer products. This supervisor IC can be used as a power monitor in these applications, to ensure that power levels remain within a predetermined range. The IC also provides an active-low reset signal in the event of over-current or under-voltage conditions.

The working principle of the MAX6375XR29+ is based on two main components: a voltage regulator and a comparator. The voltage regulator is responsible for regulating the output of the device. It receives the input voltage and converts it to a predefined voltage level, which is then fed to the comparator. The comparator then compares the voltage level of the input voltage to the predefined voltage level and determines whether a reset should be activated or not.

The MAX6375XR29+ can also be used as a watchdog timer device, allowing the user to set a timeout delay for activation of the reset signal. This can be used to reboot the system in the event of a system failure or hang due to a software bug. The watchdog timer can also be used to power down the device when not in use, saving battery life.

In summary, the MAX6375XR29+ is a voltage supervisor IC designed for portable power applications. It is suitable for USB powered devices, automotive systems, medical devices and consumer products. This PMIC is also capable of providing an active-low reset signal in the event of over-current or under-voltage conditions. The MAX6375XR29+ is also capable of providing a watchdog timer, allowing the user to set a timeout delay for activation of the reset signal.

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