CAX810LTBI-T3

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PMIC supervisors are a type of power management integrated circuits (PMICs) specifically designed for controlling power in electronic systems. The CAX810LTBI-T3 is such a supervisor, designed for supervised systems with low voltage requirements. It provides integrated features such as an adjustable preset voltage, under voltage lockout (UVLO), low-battery detection, system reset, and low-battery reset. This article will discuss the applications and working principles of this PMIC supervisor.

The CAX810LTBI-T3 is suitable for systems with input power supply ranging from 2.6V to 17V, making it suitable for low-voltage systems such as low-power wearable devices, consumer electronics, and automation and industrial control systems. It can also be used in automotive applications, as it has been designed to meet the automotive standard AEC-Q100. In addition, it offers a -40°C to a +85°C temperature range, making it suitable for operation in a wide range of environments.

Applications

The CAX810LTBI-T3 has a wide range of applications. It can be used in consumer electronics, such as televisions, audio players and portable digital devices, as well as in industrial control and automation devices. In addition, it is suitable for medical, automotive and telecommunications applications. The output pins can be used as system reset, low-battery reset and manual reset. It can also be used in combination with a watchdog timer for system reliability.

The CAX810LTBI-T3 is also suitable for embedded systems that require low-voltage reset and monitoring. Its integrated voltage supervisor and low-battery monitor can be used to detect out-of-tolerance voltages, rechargeable battery monitoring and system reset. Moreover, the supervisor has adjustable threshold and hysteresis, enabling easy set-up of the system. Lastly, its low-power design make it suitable for battery-powered applications.

Working Principle

The CAX810LTBI-T3 works by monitoring the system\'s input voltage. If a voltage drop is detected, the supervisor will initiate a reset sequence to protect the system. The reset sequence begins with an under-voltage lockout (UVLO) which is triggered when the input voltage drops below the set UVLO threshold. This triggers the low-battery detect (LBD) which will alert the system when the voltage drops below a pre-set low-battery threshold.

The supervisor then initiates a reset. If the voltage remains below the low-battery threshold, the system latches into the reset state and remains there until the voltage returns above the low-battery detect threshold. This provides protection for the system by resetting it in the event of an over-voltage condition or low-battery condition. In addition, the supervisor has an overtemperature protection circuit which will trigger a reset if the temperature rises above a pre-determined level.

The CAX810LTBI-T3 also provides a manual reset feature which allows for a user-initiated reset by asserting a pin or an external switch. The board also features an adjustable preset voltage which can be used to set the low-battery detect threshold to an appropriate level. This enables the system to detect a low-battery condition while keeping the input voltage within allowable levels.

Conclusion

The CAX810LTBI-T3 is a low-voltage supervisor suitable for embedded systems with low-voltage requirements. It provides a range of integrated features such as adjustable preset voltage, UVLO, LBD and reset, as well as overtemperature protection. Its adjustable preset voltage allows it to be used in various embedded systems while its low-power design makes it ideal for battery-powered systems. It has a wide range of potential applications and can be used in medical, automotive and telecommunications applications, as well as in consumer electronics and industrial control systems.

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