NCP300LSN34T1

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PMIC - Supervisors are power management integrated circuits (PMICs) that provide the primary means of protection to digital systems in a variety of applications. This includes the NCP300LSN34T1, a supervisor IC from ON Semiconductor which is specifically designed for power management applications. It can serve as a low-cost and low-power protector for different modules, system supply lines and up to 3.3 V to 6 V battery-powered systems.

The NCP300LSN34T1 is a CMOS voltage detector and supervisor IC that can detect any under-voltage or over-voltage due to a drop or rise in the system voltage, and can shut down a system when it happens. It also features an array of features including several power-saving modes, LED driver capability, multiple reset delays, adjustable thresholds, and a built-in watchdog timer. It operates from a wide range of input voltages and has a maximum operating supply current of 0.45 μA.

The main application fields of NCP300LSN34T1 are industrial applications, automotive, computer and peripheral systems, battery-powered systems, and industrial products such as printers and home appliances. In all of these applications, this device can help protect systems from over-voltage, over-temperature, or fluctuations in power or voltage. The NCP300LSN34T1 can be used as a primary supervisor IC, or as an auxiliary supervisor IC, depending on the application.

The working principle of NCP300LSN34T1 is very simple. It consists of two integrated voltage detectors that constantly monitor the system voltage, and a voltage reference circuit. When the device detects a voltage drop or rise, it compares the system voltage to the reference voltage and activates a reset signal, which triggers an interrupt and shuts down the system. The device will then remain in reset until the voltage returns to its normal range, at which point the device will reset itself to perform the system startup process. Once the system has restarted, the device will again monitor the system voltage and automatically reset if it deviates from the normal range.

The NCP300LSN34T1 also includes a watchdog timer, which can be enabled or disabled by adjusting the appropriate pin level. When enabled, the watchdog timer monitors the system activity and triggers a reset signal if it does not receive the expected activity signals for a specified period of time. This feature helps prevent system failure due to processor lock-ups and other issues. The NCP300LSN34T1 also has an LED driver feature, which can be used to control LED indicators or signal lights.

The NCP300LSN34T1 is a versatile power management IC that can be used in a variety of applications to help protect systems from voltage drops, rises, and other hazards. Its features are ideal for power-saving systems, battery-powered systems, and industrial products. With its wide range of input voltages and low power consumption, the NCP300LSN34T1 is a great choice for any application where power protection is needed.

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