TPS3779ADBVT

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The TPS3779ADBVT application field can be classified into power management integrated circuits (PMICs) and supervisors. PMICs are integrated circuits that are made for power management applications. They can be used for power regulation, monitoring, and control in applications such as digital, analog, and mixed-signal devices. Supervisors, on the other hand, are used to monitor and control the outputs or peripherals of a device. They are designed to protect the system from damages or malfunction due to power surge, brownouts, and other power-related problems.The TPS3779ADBVT is a supervisor specifically designed for ASIC and microprocessor-based systems. It is a low-power three-phase supervisor that is capable of operating in a voltage range of 0.4 V to 8.5 V. It is packaged in an 8-lead lead frame chip scale package (LFCSP) and feature a low-power set and reset delay time of 1.3 ms and 0.5 ms, respectively.The working principle of the TPS3779ADBVT supervisor involves monitoring the power supplies of the system. It is designed to prevent system damage or malfunction due to power-related problems such as brownouts, power surges, or over-voltage conditions.The TPS3779ADBVT supervisor includes three separate voltage thresholds – a supply voltage threshold, a power-on reset (POR) threshold, and a reset threshold. It monitors the voltage levels of its inputs and maintains the supply voltage within a predefined range. When the input voltage drops below the supply voltage threshold, it triggers a reset signal to its output. This reset signal is then sent to the ASIC or microprocessor and forces the system to shut down in order to avoid any damage or malfunction caused by the low-voltage condition.Similarly, the TPS3779ADBVT also monitors the input voltage for any spikes or over-voltage conditions. In these situations, it latches the reset signal and keeps the system from powering up until the input voltage has settled back down to the predefined voltage level.The TPS3779ADBVT supervisor provides additional protection to the system by including an additional over-current protection (OCP) circuit. This circuit monitors the current draw of the system and turns off the supply voltage upon detecting an over-current condition. This prevents any damage to the system caused by excessive current draw.In conclusion, the TPS3779ADBVT application field can be classified as a PMIC - supervisor. It is specifically designed to protect the system from power-related issues like brownouts, over-voltage, and over-current conditions. It monitors the input voltage of the system and triggers a reset signal to prevent any damage or malfunction in the system due to low-voltage or excessive current draw.

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