CAT863TTBI-GT3

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The CAT863TTBI-GT3 Supervisory Device is a voltage monitor and reset controller for powering advanced embedded systems. It is specifically designed for applications that require higher reliability and lower standby current in supervisory and power sequencing applications. This device provides an adjustable active-low reset output in response to an adjustable voltage threshold. It also features an adjustable active-low reset de-assertion delay timer, an active-high push-pull output that signals low power, and a power fail active-low output.

The CAT863TTBI-GT3 device draws a nominal standby current of 0.3 µA, making it ideal for advanced embedded applications that require lower system power consumption. It features several selectable options. These include adjustable Reset thresholds, adjustable reset release delays, and active-high push-pull outputs. The CAT863TTBI-GT3 is a perfect solution for low power power-on reset, brown-out detection, and power down management in embedded systems.

The CAT863TTBI-GT3 Supervisory Device is based on a two-compartment integrated circuit architecture. The first compartment is for power supply sequencing, and the second compartment is for voltage monitoring. The voltage is monitored by an on-chip comparator, which is triggered by an adjustable voltage threshold, commonly referred to as the reset threshold. When the monitored voltage drops below the reset threshold, the CAT863TTBI-GT3 pulls its active-low reset output low, triggering a reset pulse. The device also has an active-high push-pull output that can be used to signal low power events.

The CAT863TTBI-GT3 also has a reset de-assertion delay timer that is adjustable with an external capacitor. This capacitor has to be connected to the “DEASRT” pin of the device and its value determines the de-assertion delay time. The reset release time is important, as it ensures that any system reset takes place only after the reset signal has stayed low for a certain amount of time. This avoids any false or accidental reset signals.

The CAT863TTBI-GT3 also includes an active-low power-fail signal, which is triggered when the monitored voltage drops below –16 V. This signal is used to indicate low power conditions and can be used to control other circuits in order to ensure safe power down of the system. The device’s features make it ideal for use in precision systems where reliable, accurate power sequencing is required.

In conclusion, the CAT863TTBI-GT3 Supervisory Device is an excellent solution for applications that require accurate power sequencing, a low standby power consumption, and higher reliability. This device offers an adjustable voltage detection threshold, a reset de-assertion delay timer, an active-high push-pull output for signaling power failure, and a low-power power-fail output. This combination of features makes it ideal for use in advanced embedded systems.

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