DS1708TEPA

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Power management integrated circuits (PMIC) such as DS1708TEPA play a key role in modern electronics applications by managing power in a simple and efficient manner. The DS1708TEPA is a microprocessor supervisor from Maxim Integrated and is typically used to detect out-of-limit conditions, perform over/undervoltage conditions, provide logic reset, monitor temperature, and control interface logic functions.

Application Field

The DS1708TEPA is a general-purpose supervisor suitable for a wide range of applications. It is extensively used in industrial processors, medical electronics, security systems, automotive electronics and other similar applications. The integrated power-on reset (POR) function eliminates the need for extra circuitry and provides robust reset, booting and monitoring functions in complex systems. It is also used in equipment that requires resistive or logic control over power, thermal and interface signals. The highly integrated design of this supervisor allows it to be used in battery powered, desktop and portable applications, as well as any other system which requires accurate monitoring of power, temperature and interface signals.

Working Principle

The DS1708TEPA is a microprocessor supervisor that monitors power, temperature and interface signals. It provides power-on reset (POR) to ensure correct system initialization and provides additional features such as voltage and temperature monitoring, logic control, reset, and protection. The chip features digital input/output and analog comparator inputs, as well as programmable input power thresholds to allow designers to tailor their system to their exact needs.

The DS1708TEPA operates in a simple active mode, during which the device is constantly monitoring the various inputs for out of limit conditions. If any of these conditions are detected the device will generate a reset signal and an interrupt output to notify the processor. This allows the system to take corrective action such as shut down or log an error.

The DS1708TEPA also provides two dedicated inputs to sense temperatures. These inputs are connected to a temperature sensor and can be used to monitor the temperature of the system. If desired, the temperature range can be programmed to give an indication when the temperature is out of its normal range. This feature is especially useful in systems with sensitive components or components which could suffer permanent damage if exposed to high temperatures. The device also features a monitoring mode for power-up and power-down, which ensures that the system starts and stops in a specified sequence without causing any problems.

The DS1708TEPA also features several protection features. These protection features include input under-voltage lockout (UVLO), over-current and over-voltage protection. These features help to protect the device from damage due to incorrect voltages or currents. Additionally, the chip features open drain outputs which are ideal for controlling external peripheral signals such as LEDs.

In addition to its monitoring and protection features, the DS1708TEPA also has a high-speed reset pin, which can be used to generate a reset signal. The reset pin can be used to reset the system in the event of a fault or power failure. The reset pin can also be used to provide an extra level of security by generating a reset signal if the system is tampered with. This ensures that the system will not be able to operate until the proper authorization is provided.

The DS1708TEPA is a versatile IC which allows efficient power management in modern electronic systems. It is a simple, efficient, and highly integrated solution that eliminates the need for additional circuitry and provides robust power, reset and protection features. The integrated power-on reset (POR) and temperature monitoring functions help to ensure correct system initialization and provide extra protection for sensitive components. The device also features open drain outputs for controlling external devices, as well as a high-speed reset pin to generate a reset signal.

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