X5328P-2.7

PMIC - Supervisors : X5328P-2.7 Application Field and Working Principle

PMICs, or Power Management ICs, are a special type of ICs dedicated to power management. PMICs are used in a variety of applications, ranging from automotive to computing, industrial, and consumer electronics. PMIC Supervisors are a subclass of PMICs, specifically designed to provide overtemperature protection, overtemperature warning and thermal shutdown support. The X5328P-2.7 is one of these ICs, and its application field and working principle will be discussed below.

Application Field

The X5328P-2.7 is applicable for use in a variety of applications including automotive and industrial power systems, LED lighting, computing and consumer electronics. The IC is designed to operate over a wide input voltage range from 1.5 V to 42 V, with an adjustable reset voltage falling between 1.5 V and 5.2 V. It is programmable with a choice of timeout periods available from 0.5 seconds up to 300 seconds, and is equipped with reset output valid delay time options.

In automotive applications, the X5328P-2.7 is well suited for implementation in harsh environments where extended temperature ranges and exposure to fluctuations in temperature and power supply are expected. The integrated overtemperature protection, temperature range warning, and thermal shutdown provide additional safety and reliability, making the IC a viable choice for automotive applications.

Working Principle

The X5328P-2.7 utilizes an integrated voltage detector, where the detection voltage is adjustable over a wide range of voltage. The voltage detector is then connected to a logic circuit with an open-drain reset or N-channel FET output. In normal operation, the voltage detector is continuously sensing the supplied voltage and when the voltage deviates from the desired value, it triggers the reset or output low logic.

The X5328P-2.7 also features an integrated overtemperature protection circuit. This thermal protection circuit monitors the temperature of the device and triggers its reset output in the event that the temperature exceeds the setpoint. This ensures that the device does not cause damage to itself or to surrounding components in the event of an overtemperature situation.

In addition to the Overtemperature protection, the X5328P-2.7 includes an adjustable overtemperature warning threshold, allowing the user to configure a warning signals before reaching a critical temperature. The overtemperature warning output is not latched, and resets to normal status as soon as the temperature drops below the preset threshold.

Conclusion

The X5328P-2.7 is a PMIC Supervisor IC which is well suited for use in automotive and industrial power systems, LED lighting, computing, and consumer electronics. It provides integrated voltage detection, reset or FET output, and overtemperature protection and overtemperature warning functionality. The device is designed to operate over a wide input voltage range, and has adjustable reset voltage, timeout period and reset output valid delay time options available.