LTC2935IDC-4#TRPBF

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Power supply monitoring and supervisor ICs are an essential circuit element in electronic system designs. They provide an interface between the main power supply and the system’s microprocessor or other critical circuitry to ensure that the circuit is supplied with reliable power, and in many cases also provide a reset signal or other control function. An example of an important supervisor IC is the LTC2935IDC-4#TRPBF from Linear Technology. This IC is designed specifically for monitoring and supervising the main power supply of portable applications, and as such has a number of features specifically designed for this purpose.

Features

The LTC2935 offers a host of features. It is an adjustable 4-channel supervisor IC that provides voltage sensing and supervisory functions. It includes a selectable trip-point voltage comparator, a timer and reset generator, and a push pull reset output driver. The IC is rated up to 3.6V operation, and includes a low power shutdown system and an adjustable leakage current limiter.

The first feature of the LTC2935 is its selectable trip-point voltage comparator. The comparator can be set to trip at either 1.8V, 2.5V or 3.3V, depending on the system requirements. This means that the IC can be used for a range of portable applications with different supply voltages. The LTC2935 also includes an adjustable timer and reset generator. This timer provides a reset signal when the voltage of the system goes below the trip point for more than a predetermined period of time.

The third feature of the LTC2935 is its push-pull reset output driver. This output driver is designed to provide a reset signal to the microprocessor or other core circuitry of the system when the comparator trips and the timer has expired. This reset signal tells the system to reset itself, allowing it to continue to operate without experiencing any errors due to a low supply voltage.

The final feature of the LTC2935 is its low power shutdown system. This system is designed to prevent the microprocessor or other critical circuitry from drawing too much power when the system’s supply voltage drops below the trip point. This system also includes an adjustable leakage current limiter, which helps to prevent any additional power consumption in the event of a dropped signal.

Applications

The LTC2935IDC-4#TRPBF from Linear Technology is an ideal solution for monitoring and supervising portable, battery powered applications. For instance, this IC can be used in cellular phones, digital cameras, personal digital assistants, and other portable devices. The adjustable trip-point voltage comparator, timer and reset generator, and push-pull reset output driver make this IC a reliable solution for these types of applications.

The LTC2935 is also well suited for use in automotive and industrial applications. The adjustable trip-point voltage comparator, leakage current limiter, and low power shutdown system make this IC well suited for these types of applications. These features allow the IC to be used in applications such as temperature sensing, high side current sensing, and for monitoring power supplies and other critical functions.

Working principles

The working principle of the LTC2935IDC-4#TRPBF from Linear Technology is based on the voltage comparison of an input voltage to a fixed reference voltage. When the input voltage drops below the reference voltage, the IC will trigger an internal reset signal that is then sent to the microprocessor. This reset signal will cause the microprocessor to reset or power down, allowing the system to continue to operate without any issues.

The LTC2935 also includes an adjustable timer and reset generator. This timer provides a reset signal when the voltage of the system goes below the trip point for more than a predetermined period of time. This helps to prevent any reset signals being sent to the system due to transient voltage drops.

The low power shutdown system of the LTC2935 is designed to automatically shut off the system’s critical circuitry in the event of a low supply voltage. This system also includes an adjustable leakage current limiter, which helps to prevent any additional power consumption in the event of a dropped signal.

Conclusion

The LTC2935IDC-4#TRPBF from Linear Technology is an adjustable 4-channel supervisor IC that provides voltage sensing and supervisory functions for portable systems. It includes a selectable trip-point voltage comparator, a timer and reset generator, and a push pull reset output driver. This IC is suitable for a range of portable applications, and is ideal for monitoring and supervising portable, battery powered applications such as cellular phones, digital cameras, and personal digital assistants. The LTC2935 also has the ability to be used in automotive and industrial applications, making it an ideal supervisor IC for these types of applications.

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