S-80854CNNB-B9FT2G

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The S-80854CNNB-B9FT2G is a general-purpose voltage supervisor designed for microprocessor, disk drive and other electronic applications. It is a low-power, low-voltage supervisor that monitors the VCC power supply on a microprocessor, disk drive or other electronic system; compares it to two trip points, and provides open drain, active low Reset and active low Power Fail outputs. It also provides an active low low-battery reset output and an active low voltages monitor output.

The S-80854CNNB-B9FT2G operates with a minimum voltage of 1.2V, making it well suited for applications that require a low operating voltage. It can operate at temperatures ranging from -40°C to +85°C and has an external pin for reset enable, to prevent false triggering due to power supply instability. It is a three-pin supervisor, with a reset input, reset output and reset enable input.

The S-80854CNNB-B9FT2G is commonly used in embedded systems to ensure proper power supply operation and prevent excessively low, or high supply voltages. It is an integrated circuit (IC) that constantly monitors the voltage of the VCC power supply and compares it against two trip points programmed by external resistors. When the VCC supply voltage drops below the Low Trip Point, it switches the reset signal to an active low (logic 0); when the voltage rises above the High Trip Point, it switches the reset signal to an active high (logic 1). The reset pulse duration is programmable through external resistors.

The S-80854CNNB-B9FT2G also features an active low low battery reset (LBRS) output and an active low voltages monitor (VMON) output. The LBRS output is used to notify the microcontroller that the voltage of the power supply is too low; this is useful for informing a microcontroller to take appropriate action when the supply voltage is dangerously low. The VMON output is used to indicate when the monitored supply voltage is within a programmed range.

The S-80854CNNB-B9FT2G has a two-stage reset timeout, which allows it to detect any supply voltage irregularities and switch the reset signal in a timely manner (no more than 33 milliseconds). It also has a built-in open drain FET, which acts as a pull-up resistor and ensures a clean, glitch-free reset signal. Its low power consumption ensures that it adds minimal quiescent current burden to the system.

In summary, the S-80854CNNB-B9FT2G is a reliable, low-power, low-voltage supervisor IC, designed to ensure that circuit operations are not interrupted by unreliable supply voltages. It is capable of monitoring the VCC supply voltage, comparing it against two trip points, and providing active low reset and power fail outputs. It also features an active low low-battery reset output and an active low voltages monitor output. It has a two-stage reset timeout, a built-in open drain FET, and low power consumption, making it an ideal solution for embedded applications that require reliable power supply monitoring.

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