TL7702ACDG4

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TL7702ACDG4 Application Field and Working Principle

TL7702ACDG4 is a 3-channel supervisor and reset IC, specially designed for microprocessors and other digital system ICs, to monitor various operating conditions and to reset in times of system malfunction. It is a low quiescent current circuit, and it forms a major part of the power management of electronic systems, particularly when the power relies on a battery or other energy source. TL7702ACDG4 is a member of the PMIC – Supervisors family.

TL7702ACDG4 is composed of two main parts, the monitoring circuit and the reset circuit. The monitoring circuit, which is within the device’s power supply voltage range, continuously monitors the voltage of the microprocessor and other digital systems, and generates an interrupt signal when the system voltage is higher or lower than the set. The reset circuit includes a capacitor, a switch, and a controlled current source, which can detect changes in the system voltage and reset the system automatically if something goes wrong.

TL7702ACDG4 has a wide range of applications, especially in embedded control. It is mainly used for power-on, power-down reset and voltage monitoring in microprocessor systems and other digital systems. It can also be used for systems related to safety, such as medical and automotive, to ensure the overall safe operation of the system.

The working principle of TL7702ACDG4 is based on the signal generated when the voltage of the microprocessor and other digital systems falls below or rises above the set value. The monitoring circuit produces an interrupt signal to the reset circuit, which then opens the switch and charges the capacitor, which in turn will activate the controlled current source to reset the system. The time it takes to reset the system depends on the capacitance value, the charge/discharge current, and the voltage threshold value.

In summary, TL7702ACDG4 is an ideal choice for monitoring, resetting, and controlling microprocessor and other digital systems, due to its wide voltage range and low quiescent current. It is often used to ensure the safe operation of medical, automotive and other systems. With its efficient design and robust performance, it is the perfect choice for power management in embedded control applications.

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