XC6122D447ER-G

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Power Management Integrated Circuits (PMICs) are specialized integrated circuits that optimally manage the power of an electrical system to meet the dynamic requirements of the system. The power management function is implemented through a combination of hardware and software components, such as voltage regulators, voltage protectors, current limiters, switching components and control logic. PMICs are used extensively in control, communication and computing applications and are a key component of the modern industrial and automotive electronics industry.

Supervisors are a type of PMICs with integrated system-level monitoring and prevention functions. They provide a comprehensive real-time assessment of system performance and status while monitoring multiple parameters such as battery voltage, system temperature, voltage transients and power supply margins. Supervisors can also provide system reset and system power-on reset functions.

The XC6122D447ER-G is a dual-channel supervisor IC with integrated watchdog functions. With an operating voltage range of 2.5V to 5.5V, it offers excellent performance in the most challenging industrial and automotive power management applications. It features an 8-bit watchdog timer and two independent voltage monitor inputs with a selectable trip point between 1.4V to 5.0V. The device also provides an integrated power-on reset function, which enables the reset output to be held in either active or inactive state when power is first applied to the system. The XC6122D447ER-G also features programmable reset timing and reset filter features for added flexibility.

The operating principle of the XC6122D447ER-G is based on the concept of a watchdog timer. Once the system is powered on, the watchdog timer is started. If no reset or timer reset signal is sent within the specified time frame, the watchdog timer will trigger a system reset pulse, which clears any errors and brings the system back to its normal operating state. In order to ensure proper watchdog operation, the timer reset signal must be sent regularly. Inputs to the device can be either digital or analog, allowing for a wide range of monitoring functions.

The XC6122D447ER-G is ideally suited for applications such as motor control, industrial automation, temperature control, and automotive power management. With its wide operating voltage range, high precision, and tight timing control, it can also be used in battery and power management applications, where accuracy, reliability and system safety are of utmost importance. The device provides a cost-effective solution for system level monitoring and protection, enabling improved system performance and reliability.

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