X5323PIZ

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Power management integrated circuits (PMICs) are essential components used in modern electronic systems to provide reliable power and system reset management functions. They keep track of power status, monitor power supply voltage levels, generate reset signals and trim the output voltages to tightly control system operation. Supervisors are a class of PMICs specifically used to detect power loss and restore power after a power failure or brown-out. X5323PIZ is a multi-function supervisor device with ultra-low working current and the ability to select high-accuracy voltage thresholds to better monitor the system. It can be used in a wide range of applications, including microcontrollers, analog power and digital power supply designs.

X5323PIZ is designed for voltage monitoring and power reset functions, making it suitable for applications that need a low-power supervisor with adjustable and accurate detection thresholds. It can be used in battery-powered systems and other sensitive circuits that require ultra-low current. It features a wide operating temperature range (-40°C to 125°C) and an adjustable voltage threshold from 2.35V to 4.63V. The X5323PIZ also features two system reset functions, one for VDD monitoring and one for VBAT monitoring, both of which can be used for reset operation or for external interrupt control. Additionally, the X5323PIZ has a low-voltage-detection (LVD) circuit and an integrated ONA delay circuit to provide user-selectable reset timing.

The X5323PIZ monitors the VDD supply through a precision internal voltage reference and compares the input voltage to its setting, generating a reset/interrupt signal when the input voltage drops below the threshold. If a VBAT supply is also available, this input can be monitored for reset/interrupt generation. Additionally, the device has a low-voltage detection (LVD) circuit to detect any additional low-voltage conditions that may occur. Various parameters of the X5323PIZ can be programmed via an I2C serial interface, including the timeout interval and the reset/interrupt delay.

In addition to monitoring the VDD and VBAT supplies, the X5323PIZ also provides over-temperature protection, with an internal temperature sensor that can detect temperatures as high as 150°C. The device can be programmed to most any temperature threshold, and when the set temperature is reached, a reset/interrupt signal can be generated.

X5323PIZ also features the ability to program various timing parameters, including reset/interrupt delay, timeout interval, and hysteresis. These settings help fine-tune the power supply reset/interrupt behavior, allowing the design engineer to achieve optimized system behavior in certain applications. Additionally, the device has an integrated one-shot delay circuit, which can be programmed for any desired delay up to 1.2 milliseconds.

Overall, the X5323PIZ is a highly versatile device offering an excellent combination of features, including ultra-low current consumption, high temperature range, adjustable voltage thresholds, two system reset functions, LVD circuit and one-shot delay circuit. It is well suited for a wide range of applications, including battery-powered systems, voltage monitoring and resetting, and over-temperature protection.

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