LTC2911HDDB-2#TRMPBF

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Power management integrated circuits (PMIC) are typically used in devices that run on batteries or renewable energy systems, such as smartphones or electric vehicles. PMICs typically provide a range of functions and features, such as voltage regulation and load balancing, to ensure that power is efficiently managed and that all electronic components receive the right amount of power.

One type of PMIC is a supervisor, also known as a voltage supervisor and voltage monitor. A supervisor monitors the voltage supply in a system, detects faults, and ensures the voltage complies with a specified range. A supervisor can also provide features such as reset and watchdog functions. The LTC2911HDDB-2#TRMPBF is a low quiescent current supervisor IC with manual reset, watchdog timer and other functions.

Application Field

The LTC2911HDDB-2#TRMPBF is designed to provide voltage monitoring, manual reset and watchdog timer functions in low-power applications, such as Bluetooth and Zigbee devices, satellite downlinks and remote sensor networks.

The LTC2911HDDB-2#TRMPBF supports a wide input voltage range from 1.4V to 5.5V, making it suitable for use in applications where the input voltage is subject to variations. The low quiescent current of only 500nA allows it to be used in battery powered systems with improved efficiency.

The LTC2911HDDB-2#TRMPBF also features a built-in thermal Sensor IC (LTINF7660) which can be used to detect and monitor temperatures in industrial and consumer applications.

Working Principle

The LTC2911HDDB-2#TRMPBF uses an internal voltage divider to sense the input voltage at two different reference levels: 1.2V and 3V. These two reference voltages are compared to an internal voltage threshold in order to detect a fault.

The LTC2911HDDB-2#TRMPBF also includes a manual reset pin which can be used to reset the system when a fault is detected or when the system is powered up. This pin can be held high for a defined period of time to reset the system.

The LTC2911HDDB-2#TRMPBF also features a watchdog timer to provide an automated system reset. If the watchdog timer has not been serviced within a certain period of time, the output of the timer will go low, triggering a system reset.

The LTC2911HDDB-2#TRMPBF also includes a thermal sensor which can be used to detect and monitor temperatures in industrial and consumer applications. The thermal sensor outputs an analog voltage which can be used to determine the temperature.

The LTC2911HDDB-2#TRMPBF is an ideal solution for low power applications where voltage monitoring, reset and watchdog timer functions are essential. It is designed to operate in a wide range of voltage inputs, ensuring reliable operation in a variety of applications. Its low quiescent current allows it to be used in battery powered systems while its thermal sensor provides the ability to monitor temperatures in industrial and consumer applications.

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