ADM1815-20AKS-REEL

PMIC - Supervisors: ADM1815-20AKS-REEL

The ADM1815-20AKS-REEL Supervisors are advanced, high-accuracy supervisory circuits for voltage and temperature monitoring. The ADM1815 is a series of precision voltage monitors that features a power supply voltage accuracy of +/-2% from 4V up to 5.5V and +/-1.5% from 5.5V up to 15V. It also has an advanced temperature measurement accuracy of +/-3°C (ADTATA D-PAK) and +/-2°C (D2PAK). The ADM1815-20AKS-REEL is a cost effective solution with high accuracy voltage monitoring and temperature measurement making it ideal for a wide range of applications.

ADM1815-20AKS-REEL Application Field

The ADM1815-20AKS-REEL is used in a variety of applications such as power supply monitoring, battery monitoring, consumer electronics, industrial, automotive, wireless and telecommunication applications. It is ideal for microprocessor-based systems, allowing the processor to be sure of a valid power supply rail for proper system operation. In addition, the accuracy of the ADM1815-20AKS-REEL helps to minimize the power wasted in devices such as portable chargers as it protects against any overloads or underloads.

The ADM1815-20AKS-REEL can also be used for protection in industrial environments, where the ability to accurately monitor changes in input voltage is important to ensure system integrity and stability. In addition, the ADM1815-20AKS-REEL can be used in safety-critical automotive applications such as airbag deployment, where accurate and reliable monitoring of the power supply is needed.

ADM1815-20AKS-REEL Working Principle

The ADM1815-20AKS-REEL is composed of a temperature measuring component and a voltage monitoring component. The temperature component comprises a band gap reference and a temperature-to-voltage converter. The voltage component is composed of a voltage divider, a comparator and an adjustable reference voltage. Both components are combined to give a single-output signal—the ADM1815 watchdog output.

Temperature is monitored by the ADM1815-20AKS-REEL through the use of its temperature-to-voltage conversion circuit. The temperature is measured as a voltage, which is then compared to a reference voltage. If the voltage goes outside a certain range, an alert is sent. For voltage monitoring, a voltage divider is used to measure the voltage of the power supply line being monitored. This voltage is then compared to a reference voltage and, if the voltage goes outside a certain range, an alert is sent.

The ADM1815-20AKS-REEL has an adjustable watchdog timeout value which is set through the use of external capacitors. This timeout value can be adjusted and can be set to match the time that the system needs to detect a fault or a transient event. The end result is a more robust system that can withstand environmental changes more effectively.

Conclusion

The ADM1815-20AKS-REEL is an advanced, high-accuracy supervisory circuit designed for both temperature and voltage monitoring, making it an ideal choice for applications requiring reliable and accurate system monitoring. Its wide range of accuracy from 4-15V and its adjustable watchdog timeout value make it a great choice for applications needing tight control of system conditions.