NCP112PG

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	4
Output:	Open Drain or Open Collector
Reset:	Active High
Reset Timeout:	Adjustable/Selectable
Voltage - Threshold:	3.3V, 5V, 12V, Adj
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Through Hole
Package / Case:	14-DIP (0.300", 7.62mm)
Supplier Device Package:	14-PDIP
Base Part Number:	NCP112

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NCP112PG: Application Field and Working Principle

NCP112PG is a supervisor device from ON Semiconductor, which is a Pulse Width Modulation (PWM) Controller. It is part of the NCP112-PG family of devices, a family of integrated circuit components that provide various voltage supervision and reset functions. It is mainly used as an overvoltage protection, undervoltage protection and to provide an accurate power-on reset signal based on the microcontroller or microprocessor system\'s voltage. In many applications, this NCP112PG devices are used to provide protection against power supply overvoltage or undervoltage, while allowing power on reset.NCP112PG is an integrated circuit that features both over-voltage and under-voltage monitoring and protection with one single device. It has two inputs, one for undervoltage (UV) and another for overvoltage (OV). The UV input is determined by the low threshold voltage regurator, while the OV input is determined by the high threshold voltage regulator. It contains an internal voltage comparator to quickly determine if the voltage is above or below the threshold and takes appropriate action, such as shutdown or reset. The device also features a low power-on reset timer which resets the device if the voltage is below the reset threshold level after a predetermined amount of time.The NCP112PG is typically used to provide protection against over-voltage and under-voltage with a single device in many applications,including power supply, voltage regulators, automotive and industrial applications. It can be used to monitor and regulate the power supply for the microcontroller system and ensure that the system does not get damaged due to a power supply issue.The working principle of NCP112PG is quite simple. It compares the monitored voltage with its programmed thresholds, and generates a voltage reset or shutdown signal when either threshold is crossed. It also has a power-on-reset timer which generates a reset signal when the voltage falls below the reset threshold after a predetermined amount of time. It can operate in two different operation modes, namely, active-high and active-low. In Active-high mode, the reset (or shutdown) signal is sent to the microcontroller when the voltage is above the set threshold. In active-low mode, the reset signal is sent when the monitored voltage is below the set threshold. This allows the user to choose the most suitable operating mode, depending on the applicationOverall, the NCP112PG is a very versatile device and can be used in various different applications. It is ideal for applications where the voltage must remain at certain levels for reliable operation and protection. The device has a wide range of applications and its flexibility makes it an ideal choice for most applications.

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