LTC2902-1CGN#PBF

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PMIC, or power management integrated circuits, are used in a variety of applications to manage power. Their performance and features vary greatly, making them useful for a variety of applications. One such example is the LTC2902-1CGN#PBF, a chip designed specifically for use as a supervisor and power manager. This article will discuss the application field and working principle of the LTC2902-1CGN#PBF.

Application Field

The LTC2902-1CGN#PBF is designed specifically for supervisor and power management applications. It is a low-power, CMOS supervisor designed to provide reliable over-voltage protection. The supervisor incorporates an internal voltage reference, an on-chip bandgap circuit, and a comparator. It is designed for use in a variety of applications, including digital system power supplies, battery management systems, over-voltage protection circuits, and system power sequencing.

The LTC2902-1CGN#PBF is an ideal choice for over-voltage protection circuits due to its high accuracy and low power consumption. The supervisor is also effective at providing reliable system power sequencing due to its low power consumption and simple power-on reset/sequencing logic.

Working Principle

The LTC2902-1CGN#PBF works by monitoring a voltage input and comparing it to a reference voltage. When the monitored voltage rises to a pre-set amount, the output of the comparator changes state, which triggers the circuits power supply control. This ensures that the circuit doesn’t consume any more power than necessary and does not exceed the specified voltage.

The chip is also designed with a power-on reset logic circuit. This logic circuit ensures that the system is properly initialized on power-up, and also provides orderly system shutdown if an overvoltage is detected.

The LTC2902-1CGN#PBF also features an on-chip watchdog timer circuit. This circuit is designed to detect and alert the system if it is not functioning correctly. The timer circuit is designed to reset the system after a specified period of time if it fails to perform as expected.

Conclusion

The LTC2902-1CGN#PBF is a specialized PMIC designed specifically for supervisor and power management applications. It is a low-power, CMOS supervisor with a variety of features, such as an internal voltage reference, an on-chip bandgap circuit, and a comparator, that make it ideal for use in over-voltage protection circuits and system power sequencing. The chip also features a power-on reset logic circuit and an on-chip watchdog timer circuit that ensure proper system initialization and orderly shutdown if an overvoltage is detected.

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