CAT823YTDI-GT3

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The CAT823YTDI-GT3 PMIC Supervisor, often referred to as CAT823, is designed to provide power management and system power control functions in multiplexed and non-multiplexed applications. In non-multiplexed applications, CAT823\'s Variable Frequency Logic transient management system regulates voltage transients and provides a silent power-on reset.

The CAT823YTDI-GT3 provides excellent flexibility in multiplexed applications such as multiple chipsets and multiple processor cores. It has a voltage-sense comparator and a comparator fault monitor to manage power-down intervals, prevent overloads, and provide a fault signal to the CPU or other devices. It also comes with a watchdog timer to reset in the event of a CPU or system hangup, and a programmable Zener diode voltage clamp.

The primary application field of the CAT823YTDI-GT3 is non-multiplexed applications. The CAT823YTDI-GT3’s Variable Frequency Logic regulator regulates the in-rush current and provides a soft power-on reset. This allows the device to cleanly power on from any power state, ensuring proper operation of all critical components. In addition to providing a variable voltage output, CAT823YTDI-GT3 also provides adjustable currents with variable output frequency capability.

In multiplexed applications, the CAT823YTDI-GT3 is a robust power-supply supervisor. It includes a voltage sense comparator and fault monitor, a watchdog timer and a programmable Zener diode voltage clamp. The voltage sense comparator monitors the power-down interval in a multiplexed system, preventing any overload conditions and signaling the CPU or external devices of appropriate actions. The fault monitor monitors the power-down interval and provides an active low fault signal, notifying the CPU of the appropriate response. The watchdog timer can reset the system in case of a CPU or system hangup, and the programmable Zener diode voltage clamp encrypts logic signals above a certain level, protecting against EMI and ESD generated in the system.

The CAT823YTDI-GT3 PMIC Supervisor provides excellent flexibility in multiplexed applications and multiplexed platforms, while providing superior performance and precision. With its adjustable current and output frequency capabilities, and voltage regulator, fault monitor, watchdog timer and programmable Zener diode voltage clamp, the CAT823YTDI-GT3 is an ideal choice for designing power-management and power-supply systems in multiplexed platforms.

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