XC6121D349ER-G

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The XC6121D349ER-G is a highly integrated voltage supervisory device designed by IXYS Corporation. This device monitors system voltages and provides an early warning signal to the CPU when one or more system voltages are outside a predetermined level. The device is suitable for monitoring a wide range of supply voltages - from 3.0V to 5.5V. It is a suitable choice for applications requiring independent monitoring of multiple supply voltages, as it has a wide operating temperature range and low power consumption.

The XC6121D349ER-G is designed to provide an early warning signal when one or more supply voltages fall below predetermined levels, or when an overvoltage condition is detected. It provides an unconditional reset output or a reset interrupt output, which can be used to inform the system controller of a problematic voltage level. The device also includes various output functions such as OPEN detection, output voltage sequencing, and temperature sensing.

In terms of its application field, the XC6121D349ER-G is widely used in a variety of systems, including personal computers, servers, embedded controllers, and medical systems. It is also well suited for use in automotive systems, industrial automation, and test and measurement equipment.

As for its working principle, the XC6121D349ER-G operates by monitoring the input voltage(s) and providing an early warning signal to the host controller when it detects an abnormal condition or a voltage level that is outside a predetermined range. The device features an internal comparator that monitors the voltage level of each input and compares it to the voltage levels set in the adjustable threshold registers. When the incoming voltage is outside a preset level, an interrupt is sent to the host controller. Additionally, the unit can be configured to provide an unconditional reset signal to the controller on detection of an abnormal voltage condition.

The device also features a temperature sensor, which can be used to monitor the temperature of the system and detect over-temperature conditions. The temperature sensor is based on a bandgap reference and produces a digital logic signal that can be used to monitor and control the system temperature.

In summary, the XC6121D349ER-G is a voltage supervision device designed for use in a wide range of systems, from personal computers and servers to industrial automation and automotive systems. It is a low-power, reliable solution for monitoring system voltages and providing an early warning signal to the host controller when abnormal levels are detected. The device also features temperature sensing and outputs designed to provide the system controller with information on temperature and voltage levels.

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