CAX810STBI-T3

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23
Base Part Number:	CAX810

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Introduction to CAX810STBI-T3The CAX810STBI-T3 is a power management integrated circuit (PMIC) supervisory device that protects applications such as automotive and industrial systems from over- and under-voltage events. It supports a wide range of input voltages from 1.71 to 5.5 V and provides four active-high outputs that can be enabled to hold the power supply in rest or in ON states.This device includes a maximum current limit (programmable from 0.75 to 1.25 A), under-voltage lockout, power-on/off reset, manual reset, watchdog timer, and self-monitoring of the internal power supply for any fault or low-battery condition. For a single application, the CAX810STBI-T3 acts as an effective firewall, protecting the system from any power-related issues.Application Field of CAX810STBI-T3The CAX810STBI-T3 PMIC is ideal for automotive and industrial applications that require precision monitoring of power sources. Its wide range of input voltages and maximum current limit features make it suitable for a variety of applications.In automotive applications, the CAX810STBI-T3 can be used to provide protection against over- and under-voltage events on CAN and LIN buses, as well as power-up/shutdown sequences and power system monitoring. This device can also be used to protect and monitor the various power system components in industrial systems from any over- or under-voltage issues.In addition, the CAX810STBI-T3 can be used in medical and avionic systems to provide power protection and monitoring for the system components. This device can also be used for power supply monitoring and protection for batteries, preventing them from becoming overcharged or undercharged.Working Principle of CAX810STBI-T3The CAX810STBI-T3 PMIC works on the principle of voltage detection and power limiting. When the device is in the rest state, all outputs are disabled and the input supply voltage is monitored to detect any changes. When an over- or under-voltage event is detected, the device will disable the outputs and hold the power supply in rest, preventing any damage to the application components.The device also features a power-on/off reset circuit that holds the outputs in reset until the input supply voltage is within the operating range. The device can also be configured to hold the power supply in ON state when the input supply exceeds the trip threshold.The input supply voltage is monitored continuously to detect a low-battery condition. The CAX810STBI-T3 will reset the outputs when the supply voltage drops below the under-voltage lockout threshold.The device also includes a manual reset input and a watchdog timer. The manual reset input can be used to initiate a reset or to cycle the power-supply to the application components. The watchdog timer can be used to detect a system fault or failure and initiate a reset if needed.ConclusionThe CAX810STBI-T3 PMIC is a versatile supervisory device that can be used in a variety of applications. Its wide range of input voltages, maximum current limit, under-voltage lockout, power-on/off reset, manual reset, watchdog timer, and self-monitoring features make it ideal for automotive, industrial, medical, and avionic systems. The CAX810STBI-T3 is an effective firewall that prevents any damage to the application components from over- and under-voltage events.

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