NCP303LSN38T1

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NCP303LSN38T1 is a 3-channel, low-voltage supervisor with an integrated voltage detector, reset generator, and watchdog timer. It is designed to detect low and high system voltages, initiate a reset when a malfunction is detected, and reset the system after the fault is cleared. The integrated watchdog timer can be used to reset the system when the application software fails to run or become unresponsive.

The NCP303LSN38T1 is ideal for a wide range of power management applications, from consumer electronics to industrial and automotive sectors. Its precise detection window and reset releasing time make it an effective solution for system reliability and protection.

NCP303LSN38T1 Application Field and Working Principle

The NCP303LSN38T1 is a PMIC (power management integrated circuit) and a supervisor that is used in a wide range of applications. It provides three channels of voltage detection, reset, and a watchdog timer to improve system stability. It can detect low and high system voltages, initiate a reset when a malfunction is detected, and reset the system after the fault is cleared. It can also be used to reset the system when the application software fails to run or when it becomes unresponsive.

The integrated voltage detector helps to ensure that the voltage levels remain within a specified range. If the voltage reading is outside the programmed thresholds, the NCP303LSN38T1 will initiate a reset or alert an external device. The reset can also be initiated manually with an external reset input.

The reset generator of the NCP303LSN38T1 includes both a power-on reset (POR) and a new type of feature called a “reset spike”. The POR is activated when power is applied to the device. It helps to guarantee a safe state every time the system is powered on. A “reset spike” is generated whenever the system has a transient voltage too low for the POR to trigger, allowing the system to quickly recover from a potential fault.

Lastly, the integrated watchdog timer helps to detect if the system fails to run or is unresponsive. The timer operates by counting cycles and will generate a reset if the expected response is not received within the programmed window. It helps to ensure system reliability by helping to detect and reset any unexpected malfunctions.

In summary, the NCP303LSN38T1 is a versatile and reliable PMIC (supervisor) suitable for a wide range of applications. Its precise detection window and reset releasing time help to improve system stability and reliability. Additionally, its integrated voltage detector, reset generator, and watchdog timer help to ensure that the system recovers quickly from any unexpected faults.

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