NJU7701F28-TE1#

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NJU7701F28-TE1, referred to as NJU7701, is a supervisor device in the PMIC – Supervisors category. It is designed to protect system from damage in the event of overvoltage, overcurrent and over temperature. NJU7701 provides various operational modes such as timeout, latch, and reset delay. This article will explain the application field of NJU7701 and the working principle of its main functions.

NJU7701 is suitable for various types of applications such as communication, consumer and industrial market. Additionally, it is compatible with many microcontrollers such as STM32, LPC, and PIC. In particular, NJU7701F28-TE1 includes a programmable watchdog timer. This makes it suitable for automotive and medical applications.

NJU7701 provides many features such as high accuracy voltage and temperature monitoring, alarm output and reset output. In addition, NJU7701 is designed with the maximum flexibility so that the user can easily program it for different applications. For instance, parameters like threshold voltage, reset delay, alarm delay, and enable (high/low) can be programmed.

NJU7701 possesses high reliability and overvoltage/current/temperature protection function. The working principle of these features is based on the following components:

• Under voltage/over voltage detector – NJU7701 includes an integrated circuit that detects the voltage of power line. If the voltage on the power line is lower or higher than the specified threshold, the detector will trip and the output will be activated. This will ensure system protection from voltage fluctuations.
• Current detector – The current detector of NJU7701 senses the current passing through the power line. If the current exceeds the safety threshold, the output will be triggered.
• Temperature detector – NJU7701 also features an integrated circuit that monitors the temperature of the system. If the temperature is higher than the specified threshold, the output will be activated and the system will be shut down.
• Watchdog timer – NJU7701 also contains a programmable watchdog timer which is used to detect any malfunctioning in the system. If the timer detects any malfunction, it will trigger the alarm output.

In summary, NJU7701F28-TE1 is a supervisor device in the PMIC – Supervisors category that provides protection from overvoltage, overcurrent and over temperature. It is suitable for a wide range of applications such as communication, consumer and industrial market. NJU7701 features a programmable watchdog timer and provides functions such as high accuracy voltage and temperature monitoring, alarm output, and reset output. The working principle of NJU7701 is based on its integrated circuit that detects the voltage/current/temperature of the system, and the programmable watchdog timer.

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