IXD5120C302NR-G

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PMIC – Supervisors: IXD5120C302NR-G Application Field and Working Principle

Power management integrated circuits (PMICs) are essential elements in modern electronic systems and computers. The founding of the communications and computing revolution started many years ago and since then, PMICs have gained in complexity and importance. One type of PMIC, known as supervisors, are used for system level protection, voltage regulation and overall system performance optimization. The IXD5120C302NR-G is an example of a supervisor PMIC.

The IXD5120C302NR-G is a low power supervisor PMIC from IXYS which features an overvoltage protection and Reset circuit. It is a standard CMOS process device capable of reset under both single and multiple fault conditions. The IXD5120 also has an adjustable reset and delay time. A variety of other protection and test functions are also integrated into the device such as short circuit and overcurrent protection, tunable slew rate, advanced sleep mode, latched reset pin and a status signal.

The IXD5120C302NR-G is designed primarily for use in industrial control, instrumentation, and embedded computing systems. It is intended for use as a system supervisor for power management and protection applications. This supervisor can be used in a variety of applications ranging from protection of analog/mixed signal power supplies to monitoring power supply voltages in computing and networking systems. This supervisor can be used to protect against brownout, overvoltage, inrush current and power supply noise.

The IXD5120C302NR-G operates in three main modes of operation. In normal operation, the reset signal is not asserted and it is used to indicate the power supply health. In low power operation, the reset signal is continuously asserted to prevent the consumption of excess power. In power-on reset (POR) operation, the reset signal is asserted when the device is powered on and remains active until the power supply is stable.

The IXD5120C302NR-G uses an open drain output to drive an optional external reset. The maximum output voltage from the IXD5120C302NR-G is 5V and the peak pulse current sinking is stable over the full temperature range. The reset lead time, reset threshold voltage and the reset output voltage of the IXD5120C302NR-G can all be configured using external components. To provide additional system level protection, the IXD5120C302NR-G also has an overvoltage and inrush current protection feature.

The IXD5120C302NR-G operates in a wide range of voltage and temperature conditions, making it suitable for use in a variety of industrial, medical, and computing systems. The device is available in an SO8 package and an LQFP32 package. It operates over a temperature range of -40ºC to +125ºC and has a wide input voltage range of 2.5V to 5.5V.

In conclusion, the IXD5120C302NR-G is an ideal supervisor PMIC for use in industrial control, instrumentation, and embedded computing systems. It provides voltage and power monitoring, overvoltage protection, and system level reset functionalities and is available in a wide range of packages, temperature and voltage ranges. The device is flexible and can be configured using external components to meet the specific needs of each application and system.

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