CAT1640YI-25-T3

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The CAT1640yi-25-t3 is a high-performance supervisor circuit specifically designed to safeguard system integrity in applications requiring high reliability, providing supplemental features such as power-on reset and detect, manual reset and detect, brown-out detect and reset, system status flags and power fail detect. It is ideal for microcontroller and FPGA applications that need a reliable Supervisor-level device to simplify design, reduce system size and power consumption.

These supervisor circuits are found primarily in PMIC (Power Management Integrated Circuit) applications, with capabilities to monitor and protect against power-related faults. The CAT1640 is a single-channel supervisor that can monitor one power supply for use in a wide range of PMICs such as LEDs, AC/DC controllers, voltage regulators, battery packs and other power systems.

The CAT1640YI-25-T3 supervisor provides three synchronized functions: Power-On Reset (POR capability) for initialization and detection of power-on fault and a manual reset for debugging or periodic checks; Brown-Out Detection (BOD)/Power Fail Detection (PFD) for detecting and resetting brown-out and power-fail conditions; and System Status Flag (SSF) for detecting system faults.

The CAT1640YI-25-T3 supervisor uses a highly accurate delta-sigma ADC to measure the voltage supplied to it, using a total of 16 reference voltage steps to recognize as many as 8 different power conditions. It also features a very low input current of only 1 uA, making it efficient and power-friendly.

The CAT1640YI-25-T3\'s POR feature ensures that proper operation of the system begins when power is applied, and the circuit automatically resets the system after a power on fault. The manual reset function allows for rapid design cycles and low recovery times from faults. It also has adjustable reset delays, when enabled, that protect against shorts and transients.

The BOD/PFD feature provides protection against a variety of voltage fluctuations, as well as power failure, to ensure consistent system performance. The BODs provide a warning when the voltage level drops below a preset threshold and a reset pulse is triggered when the voltage drops below the reset threshold. The PFD provides an indication when a power file is detected and the power supply voltage drops below a user-adjustable threshold.

The CAT1640YI-25-T3\'s System Status Flags (SSF) feature allows the designer to monitor the system\'s operation and detect faults. In addition, the adjustable reset thresholds and pins facilitate customization of reset and input routing to meet the needs of any application.

In conclusion, the CAT1640YI-25-T3 supervisor is an excellent option for microcontroller, FPGA and PMIC applications. It provides one-channel monitoring with POR, BOD, PFD, and system status flag capabilities, while consuming very low power. It is a low-cost solution that is easy to implement, and its accuracy and reliability makes it an ideal choice for any system requiring high reliability.

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