XC6120C312NR-G

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PMIC-Supervisors play an important role in many electronic circuits. They are designed to monitor and control the voltages, currents, and temperatures in order to maintain reliable system performance and circuit protection. XC6120C312NR-G is an Integrated Supervisor solution for industrial and consumer applications. It integrates a 3V to 5.5V Supervisory Circuit, Active-Latch Reset Circuit, Oscillator, Timing Circuits and a Voltage Reference in a single package. Its features such as low-voltage reset, temperature-compensated reset, and dual-mode reset enable reliable circuit protection and robust system performance.

Application Field

XC6120C312NR-G is a low-voltage integrated supervisor with a broad scope of applications. It is suitable for AC/DC adaptor, battery-powered equipment and Telecom/ISP equipment, etc. It typically functions as a safety monitor in critically applications, such as protection of non-volatile memory, and microprocessor reset.

Working Principle

The core of XC6120C312NR-G is the Supervisory circuit, where a voltage reference, oscillator, timing and reset control circuitry are integrated together to supervise the power on reset.

The voltage reference sources a fixed voltage, which is compared against the supply voltage to detect if the device is in out-of-tolerance condition. If the supply voltage is below the lower reset threshold, the supervisor prevents further operations until the voltage is within the rated range.

The Oscillator provides a clock signal that is fed to the Timing Circuit. With this, downward pulses of the reset signal are generated to act as active-latch reset for microprocessors. The active-latch reset allows an immediate recovery from an out-of-tolerance condition with just one instruction cycle.

Furthermore, the Oscillator generates a clock signal that is also used to keep track of temperature variations and compensate the reset threshold accordingly. This feature prevents false resets due to temperature fluctuations while maintaining reliable circuit protection.

The XC6120C312NR-G integrated supervisor provides a high-accurate, temperature-compensated supervisory circuit in a single package. It provides reliable circuit protection and robust system performance under different temperature conditions.

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