ADM812LARTZ-REEL

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ADM812LARTZ-REEL

ADM812LARTZ-REEL, also known as ADM812, is a voltage monitor and supervisor IC which belongs to PMIC – Supervisors. It is a reliable and cost-effective circuit element, which is widely used in electronic device to provide over-voltage protection and reset functions.

The ADM812LARTZ-REEL can be featured with low supply current, dual low-voltage function (integrated LVRT) and active-low out-of-range output. This can be one preferred voltage limiters would be ideal choices for designers regarding the designing of a reliable voltage limiting circuit.

Application fields

The ADM812LARTZ-REEL voltage monitors are specifically designed for tracking system voltages. It is used to protect a variety of electronic devices from sudden high-voltage surges. It can be found in battery-powered or low-voltage AC operated equipments, such as set-top boxes, display panels, integrated audio equipment, and small display screens. This supervisory IC is also used in battery charging systems of mobile phones and portable media players. Furthermore, they can also be efficiently used in automotive applications such as radio and sound systems of vehicles.

Working Principle

The ADM812LARTZ-REEL operates by monitoring the system\'s voltage and resetting it when the voltage level drops below the preset voltage level. When a high voltage surge is detected, the IC is triggered and the reset control output (RST) is activated which resets the system. The IC also has an integrated delay between the overvoltage detection and the initiation of reset. This delay ensures that the IC does not get triggered multiple times due to voltage instabilities, thus providing a stable reset for the system.

The ADM812LARTZ-REEL comprises of two parts: the input monitoring stage and the control section. The input monitoring stage monitors the power supply and once the over-voltage detection level is reached, the output signal is sent to the control section which processes the signal and activates the reset control line. Once this output is detected, the reset feature of the system is triggered which sets the system back to the normal operating level.

The ADM812LARTZ-REEL offers a wide array of protection features such as a built-in EMI filter, overcurrent protection, over-temperature protection, and undervoltage lockout (UVLO). These features provide an extra level of protection from voltage surges, enabling the IC to be used in applications which require high levels of protection from transient spikes.

Conclusion

The ADM812LARTZ-REEL is an effective and reliable voltage monitor and supervisor IC for a wide range of applications. Its integrated EMI filter and active low out-of-range output make it suitable for use in multiple devices. Its low-voltage function and current protection make it an ideal choice when designing a stable voltage limit circuit. Its wide array of protection features ensures the device can handle transient spikes with ease.

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