ADM809TARTZ-REEL

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ADM809TARTZ-REEL is a voltage supervisor integrated circuit that is used to monitor the power supply voltage levels in a wide range of applications. The device offers a low-power, highly reliable solution that is able to detect and respond to a variety of power supply levels, enabling the design of power supply systems that are reliable and efficient.

Product Description

The ADM809TARTZ-REEL is a low-power voltage supervisor integrated circuit (VSI) designed for monitoring the power supply voltage levels in a wide range of applications. The device provides a fixed voltage threshold and reset (if enabled) for single-supply applications. The threshold voltage is set internally, and no external components are required for operation. The device offers an adjustable reset time delay, adjustable reset, and an active-low push-pull reset output. In addition, the device has a UVLO (Under Voltage Lock Out) function that prevents the device from being active while the supply voltage is below a certain level. The ADM809TARTZ-REEL is available in a 5-pin SOT-23 package and is provided in several temperature grades.

Applications

The ADM809TARTZ-REEL is used to monitor the power supply voltage levels in a wide range of applications. It is used to monitor supply voltage levels to ensure that a device or circuit is operating within specified parameters. The device is ideal for applications where the supply voltage must be maintained within a certain range. It can also be used as a "watchdog" for systems with unreliable power supplies. Some of the applications for the ADM809TARTZ-REEL include automotive, consumer, medical, and portable applications.

Working Principle

The ADM809TARTZ-REEL is a voltage supervisor that monitors the supply voltage level and generates a reset pulse when the voltage falls below the specified threshold. The reset pulse instructs the microcontroller or processor to reset itself and restart the program. The device has an adjustable reset time delay, adjustable reset signal width, and can be enabled or disabled by the user. The device also has a UVLO (Under Voltage Lock Out) function that prevents the device from being active while the supply voltage is below a certain level.

The ADM809TARTZ-REEL uses an internal comparator circuit to monitor the power supply voltage. When the supply voltage falls below the specified threshold voltage, it activates a reset circuit which generates a reset pulse. The reset pulse is passed to the reset pin, which then sends the reset signal to the microcontroller or processor. The time delay of the reset pulse can be adjusted by changing the external capacitor that is connected to the device. The reset signal width can also be adjusted by changing the external resistor that is connected to the device.

The device also features an adjustable UVLO threshold, which can be used to protect the circuit from operating at too low a voltage. The UVLO threshold can be set to any value between 1.25 V and 3.0 V by adjusting the external resistor. This feature helps to protect the circuit from being damaged due to supply voltage levels that are too low.

Conclusion

The ADM809TARTZ-REEL is a low-power voltage supervisor integrated circuit that is used to monitor the power supply voltage levels in a wide range of applications. It provides a fixed voltage threshold and reset for single-supply applications and has an adjustable reset time delay, adjustable reset, and an active-low push-pull reset output. The device also has a UVLO (Under Voltage Lock Out) function that prevents the device from being active while the supply voltage is below a certain level. The device is ideal for applications where the supply voltage must be maintained within a certain range, and it can also be used as a “watchdog” for systems with unreliable power supplies.

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