LTC2966HUD#TRPBF

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Power Management IC (PMIC) supervisors form an integral part of today’s system design. They are used to reset and monitor the power supply for microcontrollers, FPGAs, and ASICs. The LTC2966HUD#TRPBF is an advanced, low power, three-channel supervisor from Linear Technology. It offers faster resolution and improved performance due to its integrated guard band current source, charge pump, and sense resistor.

The LTC2966HUD#TRPBF has a wide range of uses, including providing over-voltage protection, current monitoring, malfunction detection, and system reset in industrial systems, medical equipment, and consumer products. Its input voltage range allows it to be used in applications requiring either low voltage or high voltage power rail protection.

The LTC2966HUD#TRPBF is designed to monitor power rails up to 30V. It has a five-level guard band current source and adjustable voltage sensors that can be programmed to detect over-voltage and under-voltage conditions. It features a low minimum over-voltage sense threshold of 55mV, enabling detection of small over-voltage fluctuations. It also has a maximum adjustable timeout of 4s for over-voltage and under-voltage events.

The LTC2966HUD#TRPBF has three user-configurable open-drain outputs: Reset, Power Good and POR. These can be used to reset system components, detect power rail malfunctions, and provide power on reset. The Reset output can be latched and triggered by a Watch Dog Timer (WDT) for system reset monitoring. It also has two internal sense resistors that can be used in conjunction with an external voltage divider for precise voltage monitoring.

The LTC2966HUD#TRPBF includes a charge pump voltage doubler circuit whose purpose is to reduce the amount of power dissipated by the power supply. This allows the supervisor to be used in applications where current consumption is a major concern. The charge pump also provides up to 30mV of additional guard band current Above the programmed over-voltage setpoint. This improves accuracy by providing additional levels of protection against over-voltage fluctuations.

The LTC2966HUD#TRPBF operates over a wide temperature range of -40°C to 125°C, so it can be used in a variety of environments. It has a low quiescent current of only 5µA, making it ideal for low power applications. It is also capable of providing 50mA of supply current, allowing it to be used in applications with higher demand.

In summary, the LTC2966HUD#TRPBF is an advanced, highly accurate, and low power supervisor suitable for a wide range of applications. It offers a comprehensive set of features and functions, including over-voltage protection, current monitoring, malfunction detection, and system reset, making it the ideal choice for power management IC supervisors.

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