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ADM803LAKS-REEL Application Field and Working Principle

ADM803LAKS-REEL is a 3 V supervisor IC belonging to the PMIC (Power Management Integrated Circuit) family. It is designed as a highly integrated circuit with multiple functions, enabling economical power system designs. It is a two-pin supervisor IC with onboard circuitry to guarantee system restart on a power-on reset and a reset override input. It provides system reset and restart protection functions, making it ideal for a wide range of applications such as microprocessors, controllers, and other embedded systems.

Key Features and Benefits

• 3 V voltage operation
• Reset time and duration programmable
• 2-pin and 3-pin ultra-small packages available
• Wide temperature range of -40°C to +125°C

Applications

• Microprocessors and controllers
• Embedded systems
• Battery-operated systems
• Automotive applications

Working Principle and Overview

ADM803LAKS-REEL operates by monitoring the voltage of the power source. When the voltage is applied, it starts to monitor the predetermined reset threshold voltage level. If the monitored reset voltage is below the fixed reset threshold level, the supervisor IC will trigger the reset. In this way, it can keep the power level above the specified threshold value by automatically restarting the system when the reset threshold is crossed. Moreover, it supports an override input, which can be used to reset the system in case of an emergency.

In addition, ADM803LAKS-REEL can monitor a wide range of voltages, ranging from 1.15 V to 4.3 V. It also provides protective features such as over-temperature protection, power-on reset threshold, and reset delay adjustment. The reset delay adjustment allows users to set the reset wait time, enabling them to adjust the reset time according to the needs of their applications. The reset delay time range can be adjusted from 16 ms to 256 ms. Moreover, the active current can be adjusted from 500 nA to 10 mA, depending on the user\'s requirement.

Conclusion

ADM803LAKS-REEL is a member of PMIC (Power Management Integrated Circuit) family and is specifically designed for microprocessors, controllers, and other embedded systems. It offers circuit protection features such as resetting the system upon detection of a predetermined reset voltage level and reset delay adjustment. Moreover, it has a wide temperature range of -40°C to +125°C and can monitor voltage ranging from 1.15 V to 4.3 V. Thus, it helps in providing system restart protection and increased reliability, making it the ideal choice for a wide range of applications.

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