CAT823SSDI-GT3

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Part Status:	Obsolete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 Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	5-TSSOP, SC-70-5, SOT-353
Supplier Device Package:	SC-70-5
Base Part Number:	CAT823

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    PMIC - Supervisors are integrated circuits that monitor the voltage and current in electronic systems, and can provide protection against improper operation and detect faults. The CAT823SSDI-GT3 is a family of voltages supervisors which can monitor up to three supplies, each of which can be configured to operate in either active-high or active-low mode. The three supplies to be monitored can be connected to any of the I/O pins of the device, making it useful for a wide variety of applications. This article will discuss the application fields and working principle of the CAT823SSDI-GT3.
    The CAT823SSDI-GT3 was designed for use in embedded systems that require power supply monitoring and protection. It is suited for use in industrial, automotive, medical, and consumer applications, as well as many other types of systems. Its three monitoring inputs can also be configured for use with additional supplies in systems with more than three power supplies.
    The CAT823SSDI-GT3 is equipped with two independent circuits for monitoring the three power supplies. The first circuit is used to detect any excessive positive supply voltage level, while the second circuit is used to detect any excessive negative supply voltage level. Once either of the circuits detect a fault, the device will immediately generate a reset signal, which can be used to reset the system or cut the power.
    In addition to its voltage supervisor function, the CAT823SSDI-GT3 also serves as an overcurrent indicator. A built-in comparator monitors theload current and will issue an interrupt when it detects that the load current has exceeded the predefined high level. This feature can be used to protect the system from overloading, by either shutting down the system or cutting the power.
    The CAT823SSDI-GT3 has a wide range of features which allow it to be configured for a wide range of applications. It can be used for monitoring both power supplies and load currents, and can be configured as an active-high voltage supervisor, an active-low voltage supervisor, or an overcurrent indicator. The device is also equipped with a power-on reset circuit, which ensures that the system is in a known state when first powered up.
    The CAT823SSDI-GT3 is a versatile device that can be used in a variety of applications. In automotive systems, it can be used to monitor vehicle battery voltage, protecting the system from excessive voltage levels. In industrial systems, it can be used to monitor the current in AC and other high-voltage systems, preventing the system from overloading. In embedded systems, it can be used to monitor the supply voltage and act as a power-on reset circuit, ensuring that the system starts up correctly. Finally, in consumer systems, it can be used to monitor the battery voltage and provide protection against overvoltage or overcurrent faults.
    The working principle of the CAT823SSDI-GT3 is simple yet effective. The device monitors the voltage and current on the three monitoring pins and compares them against the predefined levels. If either of the levels is exceeded, the device will generate a reset signal, which can then be used to reset the system or cut the power. The device can also be configured to operate in either active-high or active-low mode, depending on the needs of the application.
    The CAT823SSDI-GT3 is a versatile and effective device for monitoring and protecting power supplies in embedded systems. Its three monitoring pins can be configured for a variety of applications, and its power-on reset circuit ensures that the system starts up correctly. Its voltage- and current-monitoring circuits can detect faults and maintain the appropriate levels of power, providing protection against overvoltage or overcurrent problems.

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