X5045M8I

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X5045M8I Application Field and Working Principle

X5045M8I is part of the PMIC (Power Management Integrated Circuit) - Supervisors range of semiconductor devices produced by the Xicor semiconductor company. PMIC - Supervisors are special integrated circuits which are used to monitor and control power in a system. X5045M8I is particularly suited for use in automotive and industrial applications which require high accuracy timing, power management and temperature control.

Overview of X5045M8I

The X5045M8I is a 3.3V powered micropower supervisor which can monitor a wide range of voltages, including battery voltage and AC input. The device incorporates an I2C interface, an external reset source, an adjustable reset delay, and an open-drain N-channel MOSFET which can be used to switch power or act as an output driver. The device also has an adjustable watchdog timer and an integrated temperature sensor.

Features Of X5045M8I

The X5045M8I provides a wide operating temperature range of -40°C to +125°C and a highly accurate reset delay of 2.5ms. The voltage monitoring range starts from 0.7V and goes all the way to 5.5V, providing reliable monitoring of battery voltages. The device has an Advanced Low-Power Shutdown feature, which allows it to operate in extremely low power states and increase the system’s battery life.

The device also features advanced protection against noise and surge immunity, as well as a patented Gaussian Filter to filter out noise pulses and provide greater accuracy in voltage detection.

Working Principle of X5045M8I

X5045M8I works by monitoring the power supply voltage and comparing it to a preset threshold level. If the voltage falls below the threshold, the device will send a signal to the host microcontroller, alerting it that the power supply is low and that the system should take corrective action.

The device also has an adjustable watchdog timer which can be used to prevent system lock-ups that may happen due to incorrect code or hardware. The timer will reset the system after a preset time interval unless the host microcontroller sends the correct ‘heartbeat’ signal to the device.

The integrated temperature sensor can be used to monitor the temperature of the system and provide over-temperature protection. The device can be programmed to take corrective action when the temperature reaches a preset limit, such as shutting down the system to prevent further damage.

In addition, the X5045M8I has an open-drain N-channel MOSFET output which can be used to switch power, thus providing control over power delivery. It can be used to switch the supply voltage on or off to the host microcontroller, or to the other components in the system.

Conclusion

The X5045M8I is a reliable and accurate PMIC - Supervisors device which is ideal for automotive and industrial applications. It combines a range of features such as voltage monitoring, temperature monitoring and an adjustable watchdog timer, providing greater control and accuracy over the power delivery system in the system.

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